{"id":2786,"date":"2026-07-20T13:25:55","date_gmt":"2026-07-20T11:25:55","guid":{"rendered":"https:\/\/gekkophotonics.com\/nitrogen-fertilizers-def\/compliance\/"},"modified":"2026-07-20T13:31:00","modified_gmt":"2026-07-20T11:31:00","slug":"compliance","status":"publish","type":"page","link":"https:\/\/gekkophotonics.com\/en\/nitrogen-fertilizers-def\/regulatory-drivers-nitrogen-fertilizers-def-adblue\/","title":{"rendered":"Regulatory Drivers &#8211; Nitrogen Fertilizers &#038; DEF\/AdBlue | Gekko Photonics"},"content":{"rendered":"<style>.elementor-2786 .elementor-element.elementor-element-78a5b54{margin-top:0px;margin-bottom:0px;padding:0px 0px 0px 0px;}.elementor-2786 .elementor-element.elementor-element-355d4b7 > .elementor-element-populated{padding:0px 0px 0px 0px;}@media(min-width:768px){.elementor-2786 .elementor-element.elementor-element-355d4b7{width:100%;}}<\/style>\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"2786\" class=\"elementor elementor-2786 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auto;padding:0 24px}\n#gkms .hero .display{color:#fff;max-width:17ch}\n#gkms .hero .display .accent{color:var(--gk-blue-400)}\n#gkms .hero .lead{color:#C8D0DC;max-width:56ch;margin-top:22px}\n#gkms .hero .eyebrow{color:var(--gk-blue-400)}\n#gkms .hero .eyebrow::before{background:var(--gk-blue-400)}\n#gkms .badges{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 32px}\n#gkms .badge{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;padding:8px 15px;border-radius:var(--r-pill);background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);color:#DCE4EF}\n#gkms .badge b{color:#fff;font-weight:800}\n#gkms .hero-cta{display:flex;flex-wrap:wrap;gap:12px}\n#gkms .scrollcue{position:absolute;left:50%;bottom:26px;transform:translateX(-50%);color:rgba(255,255,255,.5);font-size:22px;animation:bob 1.8s var(--ease) infinite}\n@keyframes bob{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,8px)}}\n\n\/* ---- generic reveal ---- *\/\n#gkms .reveal{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .7s var(--ease)}\n#gkms .reveal.in{opacity:1;transform:none}\n\n\/* ---- context strip (spec-sheet band) ---- *\/\n#gkms .ctx{background:var(--gk-off)}\n#gkms .ctx-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}\n#gkms .ctx-item{padding:2px 30px}\n#gkms .ctx-item + .ctx-item{border-left:1px solid var(--g200)}\n@media(max-width:820px){#gkms .ctx-grid{grid-template-columns:repeat(2,1fr);gap:34px 0}\n  #gkms .ctx-item{padding:2px 26px}\n  #gkms .ctx-item:nth-child(odd){padding-left:0;border-left:none}\n  #gkms .ctx-item:nth-child(3),#gkms .ctx-item:nth-child(4){padding-top:0}}\n@media(max-width:520px){#gkms .ctx-grid{grid-template-columns:1fr;gap:28px 0}\n  #gkms .ctx-item{padding:0;border-left:none}}\n#gkms .ctx-item:first-child{padding-left:0}\n#gkms .ctx-item .k{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--gk-blue);margin-bottom:12px}\n#gkms 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img{width:100%;height:100%;object-fit:cover}\n\n\/* ---- analyte + spectrum explorer ---- *\/\n#gkms .explorer{display:grid;grid-template-columns:1fr 1.15fr;gap:40px;align-items:stretch}\n@media(max-width:900px){#gkms .explorer{grid-template-columns:1fr}}\n#gkms .analyte-list{display:flex;flex-direction:column;gap:10px}\n#gkms .analyte{display:flex;justify-content:space-between;align-items:center;gap:14px;text-align:left;font-family:var(--font);\n  background:#fff;border:1px solid var(--g200);border-radius:var(--r-md);padding:16px 18px;cursor:pointer;transition:.18s var(--ease)}\n#gkms .analyte:hover{border-color:var(--gk-blue-400);transform:translateX(3px)}\n#gkms .analyte.active{border-color:var(--gk-blue);background:var(--gk-blue-50);box-shadow:var(--sh-sm)}\n#gkms .analyte .n{font-weight:700;color:var(--gk-navy-deep);font-size:15px}\n#gkms .analyte .band{font-size:12px;font-weight:700;color:var(--gk-blue);font-variant-numeric:tabular-nums;background:var(--gk-blue-100);padding:3px 9px;border-radius:var(--r-pill);white-space:nowrap}\n#gkms .spectrum-panel{background:var(--gk-navy-dark);border-radius:var(--r-xl);padding:28px;color:#fff;display:flex;flex-direction:column;box-shadow:var(--sh-lg)}\n#gkms .spectrum-panel .sp-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}\n#gkms .spectrum-panel .sp-live{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--gk-blue-400);display:flex;align-items:center;gap:7px}\n#gkms .spectrum-panel .sp-live .dot{width:8px;height:8px;border-radius:999px;background:var(--gk-blue-400);animation:pulse 1.4s infinite}\n@keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}\n#gkms .spectrum-panel .sp-read{font-variant-numeric:tabular-nums;font-size:13px;color:#93A1B5}\n#gkms .spec-svg{width:100%;height:200px;margin:10px 0 6px}\n#gkms .spec-svg .grid line{stroke:rgba(255,255,255,.06);stroke-width:1}\n#gkms .spec-svg 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.vbar{height:10px;border-radius:999px;background:rgba(0,0,0,.08);margin:22px 0 16px;overflow:hidden}\n#gkms .vcard.new .vbar{background:rgba(255,255,255,.12)}\n#gkms .vbar span{display:block;height:100%;border-radius:999px;width:0;transition:width 1.2s var(--ease)}\n#gkms .vcard.old .vbar span{background:var(--bad)}\n#gkms .vcard.new .vbar span{background:var(--gk-blue)}\n#gkms .vcard p{font-size:14px;line-height:1.55}\n#gkms .vcard.old p{color:var(--gk-slate)}\n#gkms .vcard.new p{color:#C8D0DC}\n\n\/* ---- how \/ probe cycle ---- *\/\n#gkms .how-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}\n@media(max-width:900px){#gkms .how-grid{grid-template-columns:1fr}}\n#gkms .cycle{background:var(--gk-navy-dark);border-radius:var(--r-xl);padding:34px;color:#fff;box-shadow:var(--sh-lg)}\n#gkms .cycle .ring{display:flex;justify-content:center;gap:0;margin-bottom:24px}\n#gkms .cyc-step{flex:1;text-align:center;position:relative;padding:0 6px}\n#gkms .cyc-step 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auto;width:46px;height:46px;border-radius:12px;background:var(--gk-blue-50);color:var(--gk-blue);display:flex;align-items:center;justify-content:center;font-size:22px}\n#gkms .how-point h4{font-size:18px;color:var(--gk-navy-deep);margin-bottom:5px}\n#gkms .how-point p{font-size:15px;color:var(--gk-slate);line-height:1.55}\n\n\/* ---- metric band ---- *\/\n#gkms .band{background:linear-gradient(120deg,#141F30 0%,var(--gk-navy-dark) 55%,#1B3048 100%);color:#fff;position:relative;overflow:hidden}\n#gkms .band::before{content:\"\";position:absolute;inset:0;pointer-events:none;\n  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);\n  background-size:56px 56px;mask-image:radial-gradient(70rem 40rem at 30% 0%,#000 0%,transparent 70%)}\n#gkms .band .wrap{position:relative}\n#gkms .band .metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}\n@media(max-width:820px){#gkms .band .metrics{grid-template-columns:repeat(2,1fr)}}\n#gkms .metric{border-left:1px solid rgba(255,255,255,.14);padding-left:22px}\n#gkms .metric .mk{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--gk-blue-400);margin-bottom:12px}\n#gkms .metric .mv{font-size:clamp(44px,4.4vw,68px);font-weight:800;letter-spacing:-.02em;line-height:.95;font-variant-numeric:tabular-nums}\n#gkms .metric .mv .u{font-size:.38em;color:var(--gk-blue-400);margin-left:4px;font-weight:800}\n#gkms .metric p{font-size:14px;color:#C8D0DC;margin-top:14px;line-height:1.45}\n\n\/* ---- proof cards ---- *\/\n#gkms .proof-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}\n@media(max-width:900px){#gkms .proof-grid{grid-template-columns:1fr;max-width:520px;margin:0 auto}}\n#gkms .proof{background:#fff;border:1px solid var(--g100);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-sm);transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);display:flex;flex-direction:column}\n#gkms .proof:hover{box-shadow:var(--sh-lg);transform:translateY(-4px);border-color:var(--gk-blue-100)}\n#gkms .proof .pph{aspect-ratio:16\/10;background:var(--g100);overflow:hidden;position:relative}\n#gkms .proof .pph img{width:100%;height:100%;object-fit:cover;transition:transform .55s var(--ease)}\n#gkms .proof:hover .pph img{transform:scale(1.045)}\n#gkms .proof .pph .ptag{position:absolute;left:14px;top:14px;font-size:10.5px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:#fff;background:rgba(15,22,38,.72);backdrop-filter:blur(6px);padding:6px 11px;border-radius:var(--r-pill)}\n#gkms .proof .pbody{padding:24px 24px 26px;display:flex;flex-direction:column;flex:1}\n#gkms .proof h4{color:var(--gk-navy-deep);font-size:18px;line-height:1.25;margin:0 0 12px}\n#gkms .proof p{font-size:14px;color:var(--gk-slate);line-height:1.62}\n#gkms .proof p b{color:var(--gk-navy-deep);font-variant-numeric:tabular-nums}\n\n\/* ---- duel ---- *\/\n#gkms .duel{background:#fff;border:1px solid var(--g100);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-md)}\n#gkms .duel-row{display:grid;grid-template-columns:1fr 1.15fr;align-items:stretch}\n#gkms .duel-row .mid{display:none}\n#gkms .duel-row .old,#gkms .duel-row .new{padding:18px 28px;font-size:15px;display:flex;align-items:center}\n#gkms .duel-row .old{color:var(--g500);background:var(--g50);border-bottom:1px solid var(--g100)}\n#gkms .duel-row .new{color:var(--gk-navy-deep);font-weight:600;background:var(--gk-blue-50);border-bottom:1px solid rgba(1,159,226,.14);border-left:2px solid var(--gk-blue)}\n#gkms .duel-row:last-child .old{border-bottom:none}\n#gkms .duel-row:last-child .new{border-bottom:none}\n#gkms .duel-row.duel-head .old,#gkms .duel-row.duel-head .new{font-weight:800;text-transform:uppercase;font-size:12px;letter-spacing:.1em;padding-top:20px;padding-bottom:20px}\n#gkms .duel-row.duel-head .old{background:var(--g100);color:var(--g500)}\n#gkms .duel-row.duel-head .new{background:var(--gk-navy-deep);color:#fff;border-bottom:none;border-left-color:var(--gk-navy-deep)}\n#gkms .duel .ck{color:var(--gk-blue);font-weight:800;margin-right:10px}\n#gkms .duel .xk{color:var(--g300);font-weight:800;margin-right:10px}\n@media(max-width:720px){#gkms .duel-row{grid-template-columns:1fr}#gkms .duel-row .old{border-bottom:1px dashed var(--g200)}}\n\n\/* ---- compliance ---- *\/\n#gkms .reg-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}\n@media(max-width:820px){#gkms .reg-grid{grid-template-columns:1fr}}\n#gkms .reg{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1);border-radius:var(--r-lg);padding:24px}\n#gkms .reg .flag{display:inline-block;font-size:11px;font-weight:800;letter-spacing:.06em;padding:5px 11px;border-radius:6px;background:var(--gk-blue);color:#fff;text-transform:uppercase;margin-bottom:14px}\n#gkms .reg h4{font-size:17px;color:#fff;margin-bottom:6px}\n#gkms .reg p{font-size:14px;color:#C8D0DC;line-height:1.55}\n\n\/* ---- replace ---- *\/\n#gkms .repl{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}\n@media(max-width:720px){#gkms .repl{grid-template-columns:1fr}}\n#gkms .repl .item{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--g100);border-radius:var(--r-md);padding:18px 20px}\n#gkms .repl .lag{flex:0 0 auto;font-size:12px;font-weight:800;color:var(--bad);background:#FDE9E9;padding:5px 10px;border-radius:6px;white-space:nowrap}\n#gkms .repl .m{font-weight:700;color:var(--gk-navy-deep);font-size:15px}\n#gkms .repl .s{font-size:13px;color:var(--gk-slate);margin-top:3px}\n\n\/* ---- product ---- *\/\n#gkms .product{display:grid;grid-template-columns:.95fr 1.05fr;gap:48px;align-items:center}\n@media(max-width:900px){#gkms .product{grid-template-columns:1fr}}\n#gkms .prod-photo{background:radial-gradient(60% 55% at 50% 42%,#101321 0%,#010105 72%);border-radius:var(--r-xl);padding:36px 20px;box-shadow:var(--sh-lg);text-align:center;border:1px solid rgba(255,255,255,.06);position:relative;overflow:hidden}\n#gkms .prod-photo::after{content:\"\";position:absolute;left:10%;right:10%;bottom:0;height:1px;background:linear-gradient(90deg,transparent,rgba(1,159,226,.45),transparent)}\n#gkms .prod-photo img{margin:0 auto;max-height:460px;width:auto;position:relative}\n#gkms .spec-table{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--r-md);overflow:hidden;border:1px solid var(--g100);margin-top:22px}\n#gkms .spec-table td{padding:12px 18px;font-size:14px;border-bottom:1px solid var(--g100)}\n#gkms .spec-table tr:last-child td{border-bottom:none}\n#gkms .spec-table td:first-child{font-weight:600;color:var(--gk-navy-deep);width:44%}\n#gkms .spec-table td:last-child{color:var(--gk-slate)}\n\n\/* ---- CTA ---- *\/\n#gkms .cta{background:linear-gradient(135deg,#019FE2 0%,#2B2E83 100%);color:#fff;border-radius:var(--r-xl);padding:64px 48px;text-align:center;position:relative;overflow:hidden}\n#gkms .cta::after{content:\"\";position:absolute;inset:0;background:radial-gradient(40rem 20rem at 80% 120%,rgba(243,201,105,.18),transparent 60%);pointer-events:none}\n#gkms .cta .h2{color:#fff;max-width:20ch;margin:14px auto 0;position:relative}\n#gkms .cta p{color:rgba(255,255,255,.92);max-width:58ch;margin:16px auto 0;position:relative;font-size:17px;line-height:1.6}\n#gkms .cta .hero-cta{justify-content:center;margin-top:30px;position:relative}\n#gkms .cta .sub{margin-top:18px;font-size:13px;color:rgba(255,255,255,.82);position:relative}\n\n\/* ---- workshop strip (secondary, demoted) ---- *\/\n#gkms .strip{background:var(--gk-off);border-top:1px solid var(--g100);border-bottom:1px solid var(--g100)}\n#gkms .strip-in{display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between;padding:34px 0}\n#gkms .strip .st-l{display:flex;align-items:center;gap:16px}\n#gkms .strip .st-ic{width:48px;height:48px;border-radius:12px;background:var(--gk-blue-50);color:var(--gk-blue);display:flex;align-items:center;justify-content:center;font-size:24px;flex:0 0 auto}\n#gkms .strip h4{font-size:18px;color:var(--gk-navy-deep)}\n#gkms .strip p{font-size:14px;color:var(--gk-slate);margin-top:2px}\n\n\/* ---- footer ---- *\/\n#gkms .foot{background:var(--black);color:#C8D0DC;padding:72px 0 30px}\n#gkms .foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px}\n@media(max-width:820px){#gkms .foot-grid{grid-template-columns:1fr 1fr}}\n#gkms .foot .flogo{height:42px;width:auto;filter:brightness(0) invert(1);margin-bottom:18px}\n#gkms .foot .ftag{font-size:14px;color:#8A93A0;line-height:1.6;max-width:34ch}\n#gkms .foot h5{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--gk-blue);margin-bottom:16px}\n#gkms .foot a{display:block;font-size:13px;color:#C8D0DC;line-height:2}\n#gkms .foot a:hover{color:var(--gk-blue-400)}\n#gkms .foot .addr{font-size:13px;color:#8A93A0;line-height:1.7;margin-top:4px}\n#gkms .foot .fbottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;margin-top:52px;padding-top:24px;border-top:1px solid rgba(255,255,255,.08);font-size:12px;color:#5E6676}\n#gkms .foot .fbottom .tagpl{color:var(--gk-blue);font-weight:700;letter-spacing:.14em;text-transform:uppercase}\n#gkms .mono-note{font-size:12px;color:var(--g400)}\n\n\/* ---- feasibility request form (custom, posts to gekko\/v1\/rsvp) ---- *\/\n#gkms .gkms-form{max-width:560px;margin:28px auto 0;text-align:left;position:relative}\n#gkms .gkms-form-q{font-weight:700;font-size:14px;color:#fff;margin:0 0 12px;text-align:center}\n#gkms .gkms-choices{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:14px}\n#gkms .gkms-opt{display:flex;align-items:center;justify-content:center;text-align:center;gap:8px;padding:13px 10px;border:1.5px solid rgba(255,255,255,.34);border-radius:var(--r-md);background:rgba(255,255,255,.08);color:#fff;font-family:var(--font);font-weight:600;font-size:14px;line-height:1.25;cursor:pointer;transition:.15s var(--ease)}\n#gkms .gkms-opt:hover{border-color:#fff;background:rgba(255,255,255,.16)}\n#gkms .gkms-opt.is-sel{background:#fff;color:var(--gk-navy-deep);border-color:#fff}\n#gkms .gkms-row{display:flex;gap:10px;flex-wrap:wrap}\n#gkms .gkms-email{flex:1 1 240px;min-width:0;padding:14px 15px;height:auto;line-height:1.4;border:1.5px solid rgba(255,255,255,.34);border-radius:var(--r-md);background:rgba(255,255,255,.96);color:var(--gk-navy-deep);font-family:var(--font);font-size:15px}\n#gkms .gkms-email::placeholder{color:var(--g400)}\n#gkms .gkms-email:focus{outline:none;border-color:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.25)}\n#gkms .gkms-submit{flex:0 0 auto;box-shadow:0 6px 18px rgba(13,13,13,.18)}\n#gkms .gkms-hp{position:absolute!important;left:-9999px!important;top:auto;width:1px;height:1px;overflow:hidden;opacity:0}\n#gkms .gkms-consent{display:flex;align-items:flex-start;gap:10px;margin:14px 0 0;font-size:12.5px;color:rgba(255,255,255,.9);line-height:1.5;cursor:pointer;text-align:left}\n#gkms .gkms-consent-cb{flex:none;width:18px;height:18px;margin-top:1px;accent-color:#fff;cursor:pointer}\n#gkms .gkms-consent a{color:#fff;text-decoration:underline}\n#gkms .gkms-req{color:var(--gk-gold)}\n#gkms .gkms-msg{margin:12px 0 0;font-size:14px;min-height:1px;text-align:center;color:#fff}\n#gkms .gkms-msg.err{color:#FFDADA}\n#gkms .gkms-done{max-width:560px;margin:28px auto 0;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.30);border-radius:var(--r-lg);padding:24px;text-align:center;color:#fff;font-size:16px;font-weight:600;line-height:1.5}\n#gkms .cta-alt{margin-top:20px;position:relative}\n#gkms .cta-alt a{color:#fff;font-weight:600;font-size:14px;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.5);padding-bottom:2px}\n#gkms .cta-alt a:hover{border-color:#fff}\n@media(max-width:560px){#gkms .gkms-choices{grid-template-columns:1fr}}\n\n\/* ---- inline line icons (replacing emoji) ---- *\/\n#gkms .ci svg{width:28px;height:28px;display:block;color:#DCE4EF}\n#gkms .cyc-step.on .ci svg{color:#fff}\n#gkms .how-point .hi svg{width:24px;height:24px;display:block}\n#gkms .strip .st-ic svg{width:26px;height:26px;display:block}\n#gkms .gkms-hint{margin:0 0 16px;font-size:13px;color:rgba(255,255,255,.88);line-height:1.55;text-align:center}\n#gkms .gkms-submit{transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease)}\n#gkms .gkms-submit.is-check{background:var(--ok);border-color:var(--ok);color:#fff;pointer-events:none}\n#gkms .gkms-submit svg{width:18px;height:18px;flex:0 0 auto;margin-right:2px}\n\n\n\/* ---- multi-page additions ---- *\/\n#gkms .subhero{position:relative;overflow:hidden;color:#fff;padding:120px 0 72px;\n  background:linear-gradient(115deg,#0F1626 0%,#192A3D 55%,#1F2A4A 100%)}\n#gkms .subhero .spectrum{position:absolute;inset:0;width:100%;height:100%;opacity:.20;pointer-events:none}\n#gkms .subhero .display{color:#fff;max-width:22ch;font-size:clamp(34px,4.4vw,54px)}\n#gkms .subhero .display .accent{color:var(--gk-blue-400)}\n#gkms .subhero .lead{color:#C8D0DC;max-width:62ch;margin-top:18px}\n#gkms .subhero .eyebrow{color:var(--gk-blue-400)}\n#gkms .subhero .eyebrow::before{background:var(--gk-blue-400)}\n#gkms .crumb{font-size:13px;color:#8A93A0;margin-bottom:18px}\n#gkms .crumb a{color:#C8D0DC}\n#gkms .crumb a:hover{color:#fff}\n#gkms .teaser-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:44px}\n#gkms a.teaser{display:flex;flex-direction:column;background:#fff;border:1px solid var(--g100);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-sm);transition:.2s var(--ease);color:inherit}\n#gkms a.teaser:hover{transform:translateY(-3px);box-shadow:var(--sh-md);border-color:var(--gk-blue-100)}\n#gkms .teaser .tph{height:230px;overflow:hidden}\n#gkms .teaser .tph img{width:100%;height:100%;object-fit:cover}\n#gkms .teaser .tbody{padding:20px 22px 22px}\n#gkms .teaser .tk{font-size:11px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--gk-blue);margin-bottom:8px}\n#gkms .teaser h3{font-size:18px;color:var(--gk-navy-deep);margin-bottom:6px}\n#gkms .teaser p{font-size:14px;color:var(--gk-slate);line-height:1.55}\n#gkms .teaser .tgo{margin-top:auto;padding-top:14px;font-size:13.5px;font-weight:700;color:var(--gk-blue)}\n@media(max-width:940px){#gkms .teaser-grid{grid-template-columns:1fr}}\n#gkms .pager{display:flex;justify-content:space-between;gap:14px;max-width:1200px;margin:0 auto;padding:34px 24px}\n#gkms .pager a{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--gk-navy-deep)}\n#gkms .pager a:hover{color:var(--gk-blue)}\n\/* ---- packshot rule: no frame, no background, full device visible ---- *\/\n#gkms .prod-photo{background:none;border:none;box-shadow:none;padding:0;border-radius:0;overflow:visible}\n#gkms .prod-photo::after{display:none}\n#gkms .prod-photo img{max-height:560px;max-width:100%;width:auto;object-fit:contain}\n#gkms .packshot-stage{background:none;border:0;box-shadow:none;padding:0;text-align:center}\n#gkms .packshot-stage img{max-width:100%;height:auto;max-height:520px;object-fit:contain;filter:drop-shadow(0 24px 42px rgba(25,42,61,.28))}\n#gkms .tabpanel.active:not(:has(img)){grid-template-columns:1fr!important;max-width:840px}\n#gkms .product:not(:has(img)){grid-template-columns:1fr!important;max-width:840px}\n#gkms .how-grid:not(:has(img)):not(:has(.cycle)){grid-template-columns:1fr!important;max-width:840px}\n\/* ---- click-to-load YouTube facade ---- *\/\n#gkms .vid-embed{position:relative;width:100%;aspect-ratio:16\/9;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-md);background:#0F1626}\n#gkms .vid-embed .yt-facade{display:block;width:100%;height:100%;margin:0;padding:0;border:0;cursor:pointer;background:#0F1626;position:relative}\n#gkms .vid-embed .yt-facade img{width:100%;height:100%;object-fit:cover;display:block}\n#gkms .vid-embed .yt-play{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}\n#gkms .vid-embed .yt-play svg{width:74px;height:auto;filter:drop-shadow(0 6px 16px rgba(0,0,0,.45));transition:transform .18s var(--ease)}\n#gkms .vid-embed .yt-facade:hover .yt-play svg,#gkms .vid-embed .yt-facade:focus-visible .yt-play svg{transform:scale(1.09)}\n#gkms .vid-embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0;display:block}\n\n<\/style>\n\n<div id=\"gkms\">\n<div id=\"gkms-progress\" style=\"position:fixed;top:0;left:0;height:3px;background:var(--gk-blue);width:0;z-index:200\"><\/div>\n<nav class=\"nav\">\n    <div class=\"nav-in\">\n      <a href=\"\/nitrogen-fertilizers-def\/\"><img decoding=\"async\" class=\"logo\" src=\"https:\/\/gekkophotonics.com\/wp-content\/uploads\/2026\/07\/logo-full-1.png\" alt=\"Gekko Photonics\"><\/a>\n      <div class=\"nav-links\">\n      <a href=\"\/nitrogen-fertilizers-def\/\">Home<\/a>\n      <a href=\"\/nitrogen-fertilizers-def\/chemistry\/\">Chemistry<\/a>\n      <a href=\"\/nitrogen-fertilizers-def\/what-we-measure\/\">What we measure<\/a>\n      <a href=\"\/nitrogen-fertilizers-def\/how-it-works\/\">How it works<\/a>\n      <a href=\"\/nitrogen-fertilizers-def\/proof\/\">Proof<\/a>\n      <a href=\"\/nitrogen-fertilizers-def\/compliance\/\" class=\"active\">Compliance<\/a>\n      <a href=\"\/nitrogen-fertilizers-def\/instrument\/\">Instrument<\/a>\n      <\/div>\n      <a class=\"btn btn-primary\" href=\"#contact\">Test on your samples<\/a>\n    <\/div>\n  <\/nav>\n<header class=\"subhero\">\n  <svg class=\"spectrum\" viewBox=\"0 0 1200 420\" preserveAspectRatio=\"none\" aria-hidden=\"true\">\n    <path d=\"M0,320 L90,312 L150,290 L195,195 L240,305 L315,292 L375,185 L420,305 L480,262 L540,135 L600,290 L660,276 L720,225 L780,296 L840,282 L900,205 L960,300 L1020,288 L1080,240 L1140,292 L1200,270\" fill=\"none\" stroke=\"#019FE2\" stroke-width=\"2\"><\/path>\n    <path d=\"M0,335 L90,328 L150,318 L195,245 L240,325 L315,312 L375,232 L420,322 L480,292 L540,196 L600,312 L660,300 L720,258 L780,318 L840,305 L900,242 L960,320 L1020,308 L1080,272 L1140,314 L1200,295\" fill=\"none\" stroke=\"#fff\" stroke-width=\"1\" stroke-dasharray=\"4 6\"><\/path>\n  <\/svg>\n  <div class=\"hero-in\" style=\"position:relative\">\n    <div class=\"crumb\"><a href=\"\/nitrogen-fertilizers-def\/\">Nitrogen fertilizers &amp; DEF\/AdBlue<\/a> \/ Compliance<\/div>\n    <span class=\"eyebrow\">Compliance &middot; Nitrogen Fertilizers &amp; DEF\/AdBlue<\/span>\n    <h1 class=\"display\" style=\"margin-top:16px\">Every nitrogen and DEF number traces back to <span class=\"accent\">the concentration in the line<\/span>.<\/h1>\n    <p class=\"lead\">ISO 22241 for DEF\/AdBlue, Regulation (EU) 2019\/1009 for CE fertilising products and the Nitrates Directive for effluent all resolve to the same handful of figures - urea concentration, total nitrogen, biuret, nitrate - fixed in the reactor and the blending line long before an offline method confirms them.<\/p>\n  <\/div>\n<\/header>\n\n<!-- ===== 01 \u00b7 DEF\/ADBLUE \u00b7 ISO 22241 ===== -->\n<section id=\"def-iso\">\n  <div class=\"wrap\">\n    <div class=\"sec-head reveal\">\n      <span class=\"num\">01<\/span>\n      <span class=\"eyebrow\">DEF \/ AdBlue &middot; ISO 22241<\/span>\n      <h2 class=\"h2\">SCR compliance is set by the urea concentration you blend.<\/h2>\n      <p class=\"lead\">DEF\/AdBlue is AUS 32 - a 32.5% urea solution in deionized water that feeds Euro VI SCR to cut NOx. ISO 22241 fixes the urea-concentration window (32.5% \u00b10.7%) and the contaminant limits, and AdBlue sits inside Euro VI homologation under Regulation 2017\/2400. Off-spec fluid destroys the SCR catalyst, and the deviation lands on the producer.<\/p>\n    <\/div>\n    <div class=\"how-grid\">\n      <div class=\"how-points\">\n        <div class=\"how-point reveal\"><div class=\"hi\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M7 3.5h6.5L18 8v12.5H7z\"\/><path d=\"M13.5 3.5V8H18\"\/><path d=\"M10 12.5h5M10 16h5\"\/><\/svg><\/div><div><h4>What the rules cover<\/h4><p>ISO 22241-1\/2\/3 sets urea concentration, biuret and the absence of contaminants - checked for every batch. AdBlue is part of Euro VI homologation under Regulation 2017\/2400. Fluid without that documentation does not move into the covered market.<\/p><\/div><\/div>\n        <div class=\"how-point reveal\"><div class=\"hi\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M3.5 20.5h17\"\/><path d=\"M5.5 20.5V10l4.5 3v-3l4.5 3V6h4v14.5\"\/><\/svg><\/div><div><h4>Who it touches<\/h4><p>DEF and AdBlue producers and fillers selling into Euro VI markets. Urea concentration has to hold inside the ISO 22241 window per batch, and homogeneity has to hold across every tanker and IBC that leaves the site.<\/p><\/div><\/div>\n        <div class=\"how-point reveal\"><div class=\"hi\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M4 17l4.5-4.5 3 3L19 8\"\/><path d=\"M14.5 8H19v4.5\"\/><\/svg><\/div><div><h4>What continuous measurement adds<\/h4><p>The in-plant standard for urea is refractometry - 2-3 minutes, total dissolved solids only, and it cannot separate urea from ammonium nitrate. An inline Raman probe, reading directly in the pipeline without drawing a sample, logs urea concentration and homogeneity continuously. Raman verifies that composition; the ISO 22241 trace metals (Ca, Fe, Cu, Zn, Al) stay with ICP - a boundary of the method, stated up front.<\/p><\/div><\/div>\n      <\/div>\n      <div class=\"tp-photo reveal\"><img decoding=\"async\" src=\"https:\/\/gekkophotonics.com\/wp-content\/uploads\/2026\/07\/gen-def-filling.jpg\" alt=\"DEF and AdBlue blending and filling station with stainless mixing tanks and an IBC filling line\"><\/div><\/div>\n  <\/div>\n<\/section>\n\n<!-- ===== 02 \u00b7 EU 2019\/1009 CE FERTILISING PRODUCTS ===== -->\n<section id=\"eu-cefp\" class=\"ctx\">\n  <div class=\"wrap\">\n    <div class=\"sec-head reveal\">\n      <span class=\"num\">02<\/span>\n      <span class=\"eyebrow\">European Union &middot; CE Fertilising Products<\/span>\n      <h2 class=\"h2\">Declared nitrogen and the biuret limit both trace back to the reactor.<\/h2>\n      <p class=\"lead\">Regulation (EU) 2019\/1009, in force since 16 July 2022, governs CE-marked fertilising products. It fixes what has to be documented: total nitrogen as the declared parameter that sets the product class, and biuret held below 1% by weight in fertilizer urea.<\/p>\n    <\/div>\n    <div class=\"how-grid\">\n      <div class=\"how-points\">\n        <div class=\"how-point reveal\"><div class=\"hi\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M9.5 3.5h5\"\/><path d=\"M10.5 3.5v4.8L5.6 18a1.8 1.8 0 0 0 1.7 2.4h9.4a1.8 1.8 0 0 0 1.7-2.4l-4.9-9.7V3.5\"\/><path d=\"M7.5 14.5h9\"\/><\/svg><\/div><div><h4>What it covers<\/h4><p>Total nitrogen is legally declared and determines the product class. Biuret must stay below 1% wt in fertilizer urea (IFA and Reg 2019\/1009) and below 0.5% in RSM - it inhibits plant growth from 0.5% and blocks the urease enzyme. The regulation applies to urea, UAN\/RSM and ATS.<\/p><\/div><\/div>\n        <div class=\"how-point reveal\"><div class=\"hi\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M10.5 13.5a4 4 0 0 0 5.7 0l3-3a4 4 0 0 0-5.7-5.7l-1.6 1.6\"\/><path d=\"M13.5 10.5a4 4 0 0 0-5.7 0l-3 3a4 4 0 0 0 5.7 5.7l1.6-1.6\"\/><\/svg><\/div><div><h4>Who it touches<\/h4><p>Producers of urea, UAN\/RSM and ATS marketing CE-marked product. Enforcement runs through customer audit, Notified Body and buyer specification - so composition is documented batch by batch, not only at type approval.<\/p><\/div><\/div>\n        <div class=\"how-point reveal\"><div class=\"hi\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M4 17l4.5-4.5 3 3L19 8\"\/><path d=\"M14.5 8H19v4.5\"\/><\/svg><\/div><div><h4>What continuous measurement adds<\/h4><p>Total-N certification runs on Kjeldahl at 60-90 minutes; biuret on GC at 40-60 minutes, HPLC at 20-30 minutes or DMAB titration at 15-20 minutes. Inline Raman reads total nitrogen through the nitrate band near 1050 cm&#8315;&sup1;. Feasibility on fertilizer granules returned a very strong linear correlation, R = 0.91 on raw data, and biuret is trended during the cook so operators correct before off-spec.<\/p><\/div><\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n<\/section>\n\n<!-- ===== 03 \u00b7 EFFLUENT &amp; BOUNDARIES \u00b7 NITRATES DIRECTIVE ===== -->\n<section id=\"effluent-nitrates\" class=\"band\">\n  <div class=\"wrap\">\n    <div class=\"sec-head reveal\">\n      <span class=\"num\">03<\/span>\n      <span class=\"eyebrow no-line\" style=\"color:var(--gk-blue-400)\">Effluent &amp; boundaries &middot; Nitrates Directive<\/span>\n      <h2 class=\"h2\" style=\"color:#fff;margin-top:12px\">Nitrogen is regulated on the way out of the plant, too.<\/h2>\n      <p class=\"lead\" style=\"color:#C8D0DC\">Residual nitrogen from RSM and ATS operations falls under the Nitrates Directive 91\/676\/EEC, and integrated environmental permits translate it into N-total limits on effluent. Raman covers part of that picture directly - and is explicit about where it hands the rest to reference methods.<\/p>\n    <\/div>\n    <div class=\"reg-grid\">\n      <div class=\"reg reveal\"><span class=\"flag\">91\/676\/EEC<\/span><h4>Nitrate limits on effluent<\/h4><p>The Nitrates Directive sets nitrogen limits for effluent; site permits turn them into N-total ceilings. Nitrate is directly measurable in the line - an isolated band near 1044 cm&#8315;&sup1;, with repeatability around SD 0.0004 a.u.<\/p><\/div>\n      <div class=\"reg reveal\"><span class=\"flag\">Method limit<\/span><h4>Ammonium needs a model<\/h4><p>In the current optics the N-H bands near 3030-3335 cm&#8315;&sup1; are masked by the broad water O-H signal. Ammonium is reached through a chemometric model on the full spectrum, validated on ammonium-nitrate standards over 2.01-10.76% N-NH4+ with a mean prediction error around 0.069%.<\/p><\/div>\n      <div class=\"reg reveal\"><span class=\"flag\">Reference method<\/span><h4>HPLC and Kjeldahl stay the referee<\/h4><p>Inline Raman is real-time process measurement, not a replacement for the certifying lab. Kjeldahl for total nitrogen and HPLC or IC for biuret remain the reference methods. The inline record removes the waiting, not the certification.<\/p><\/div>\n    <\/div>\n    <div class=\"how-grid\" style=\"margin-top:56px\">\n      <div class=\"tp-photo reveal\"><img decoding=\"async\" src=\"https:\/\/gekkophotonics.com\/wp-content\/uploads\/2026\/07\/inline-frame-pipes-1.jpg\" alt=\"Spectrally X1 INLINE mounted on a process frame\"><\/div>\n      <div class=\"reveal\">\n        <h3 style=\"font-size:24px;color:#fff;margin-bottom:14px\">What the analyzer reads here<\/h3>\n        <p style=\"color:#C8D0DC;line-height:1.65;font-size:16px\">Spectrally X1 INLINE measures urea concentration, nitrate, biuret and solution homogeneity directly in the reactor, pipeline or mixer - during production and at dosing. No sample is drawn from the stream.<\/p>\n        <p style=\"color:#C8D0DC;line-height:1.65;font-size:16px;margin-top:14px\">On effluent, nitrate is identified directly and read continuously. The study stream at an ammonium-nitrate producer ran strongly variable - pH 1-12, 20-60 C, low viscosity with occasional turbidity spikes - and roughly one minute was enough for both nitrogen readings.<\/p>\n        <p style=\"color:#C8D0DC;line-height:1.65;font-size:16px;margin-top:14px\">The nitrogen chemistry proven on that effluent transfers directly to UAN\/RSM composition. Ammonium down to ppm still needs an optics change and calibration on real effluent - stated here, not implied.<\/p>\n      <\/div>\n    <\/div>\n  <\/div>\n<\/section>\n\n<!-- ===== 04 \u00b7 CUSTOMER-SPEC PRESSURE ===== -->\n<section id=\"customer-spec\">\n  <div class=\"wrap\">\n    <div class=\"sec-head reveal\">\n      <span class=\"num\">04<\/span>\n      <span class=\"eyebrow\">Customer specifications<\/span>\n      <h2 class=\"h2\">The tightest limits arrive with the purchase order.<\/h2>\n      <p class=\"lead\">Regulation sets the frame. The working numbers - urea concentration, biuret, declared %N, N\/S ratio, homogeneity - come from buyers and the ISO windows. Holding them batch after batch, tanker after tanker, is where the measurement problem actually lives.<\/p>\n    <\/div>\n    <div class=\"ctx-grid\" style=\"margin-bottom:56px\">\n      <div class=\"ctx-item reveal\"><div class=\"k\">DEF \/ AdBlue<\/div><div class=\"v\">Urea window per batch<\/div><p>Urea concentration has to sit inside the ISO 22241 window; off-spec fluid destroys the SCR catalyst and becomes producer liability. Per-batch plus tanker and IBC homogeneity is the check that matters.<\/p><\/div>\n      <div class=\"ctx-item reveal\"><div class=\"k\">UAN \/ RSM<\/div><div class=\"v\">Declared %N, narrow spec<\/div><p>Urea and ammonium-nitrate concentrations must hit a narrow composition spec. Feedstock fluctuations propagate, and customers claim on any deviation from the declared %N.<\/p><\/div>\n      <div class=\"ctx-item reveal\"><div class=\"k\">Fertilizer urea<\/div><div class=\"v\">Biuret below 1%<\/div><p>Biuret inhibits growth from 0.5% and blocks the urease enzyme. CE-marked urea keeps it under 1% wt, RSM under 0.5%. Too high means disposal or a lower price.<\/p><\/div>\n      <div class=\"ctx-item reveal\"><div class=\"k\">ATS<\/div><div class=\"v\">N\/S ratio on spec<\/div><p>For the neighboring thiosulfate family, concentration and the N\/S ratio must hit spec; deviations bring complaints and CE problems.<\/p><\/div>\n    <\/div>\n    <h3 style=\"font-size:20px;color:var(--gk-navy-deep);margin-bottom:16px\">The batch record, two ways<\/h3>\n    <div class=\"duel reveal\">\n      <div class=\"duel-row duel-head\"><div class=\"old\">Documentation today<\/div><div class=\"mid\"><\/div><div class=\"new\">With continuous inline measurement<\/div><\/div>\n      <div class=\"duel-row\"><div class=\"old\"><span class=\"xk\">&times;<\/span>Refractometry every few minutes - total dissolved solids only, urea and ammonium nitrate not separated<\/div><div class=\"mid\">&rarr;<\/div><div class=\"new\"><span class=\"ck\">&check;<\/span>Urea concentration, nitrate and homogeneity logged continuously and time-stamped across the batch<\/div><\/div>\n      <div class=\"duel-row\"><div class=\"old\"><span class=\"xk\">&times;<\/span>Biuret from GC or HPLC, 20-60 min behind the reactor<\/div><div class=\"mid\">&rarr;<\/div><div class=\"new\"><span class=\"ck\">&check;<\/span>Biuret trended during the cook, in time to correct before off-spec<\/div><\/div>\n      <div class=\"duel-row\"><div class=\"old\"><span class=\"xk\">&times;<\/span>Total nitrogen certified by Kjeldahl, 60-90 min per point<\/div><div class=\"mid\">&rarr;<\/div><div class=\"new\"><span class=\"ck\">&check;<\/span>Total N tracked through the nitrate band; Kjeldahl kept as the reference, not the bottleneck<\/div><\/div>\n      <div class=\"duel-row\"><div class=\"old\"><span class=\"xk\">&times;<\/span>DEF and RSM tankers accepted on a supplier CoA<\/div><div class=\"mid\">&rarr;<\/div><div class=\"new\"><span class=\"ck\">&check;<\/span>Each batch and every tanker or IBC verified inline in seconds at fill and receipt<\/div><\/div>\n    <\/div>\n  <\/div>\n<\/section>\n\n<div class=\"pager\">\n    <span><a href=\"\/nitrogen-fertilizers-def\/proof\/\">&larr; Proof<\/a><\/span>\n    <span><a href=\"\/nitrogen-fertilizers-def\/instrument\/\">Instrument &rarr;<\/a><\/span>\n  <\/div>\n<section id=\"contact\">\n    <div class=\"wrap\">\n      <div class=\"cta reveal\">\n        <span class=\"eyebrow no-line\" style=\"color:#fff;justify-content:center\">Your next step<\/span>\n        <h2 class=\"h2\">See the batch record your line would write.<\/h2>\n        <p>Send representative samples from your urea, UAN\/RSM, DEF\/AdBlue or ATS process. We build and validate a chemometric model on your matrix and show the urea-concentration, nitrate and biuret trail an inline probe would log for every batch and every tanker - before any hardware decision.<\/p>\n        <form class=\"gkms-form\" data-region=\"m2-nitrogen-fertilizers-def\" data-region-label=\"Microsite M2 - Nitrogen fertilizers and DEF\/AdBlue\" data-source=\"microsite-m2-compliance\" novalidate>\n          <div class=\"gkms-form-q\">What would you like to do?<\/div>\n          <div class=\"gkms-choices\" role=\"radiogroup\" aria-label=\"What would you like to do?\">\n            <button type=\"button\" class=\"gkms-opt is-sel\" data-val=\"feasibility\" role=\"radio\" aria-checked=\"true\">Feasibility study<\/button>\n            <button type=\"button\" class=\"gkms-opt\" data-val=\"workshop\" role=\"radio\" aria-checked=\"false\">Workshop seat<\/button>\n            <button type=\"button\" class=\"gkms-opt\" data-val=\"info\" role=\"radio\" aria-checked=\"false\">Send info<\/button>\n          <\/div>\n          <p class=\"gkms-hint\" id=\"gkms-hint\"><\/p>\n          <div class=\"gkms-row\">\n            <input type=\"email\" class=\"gkms-email\" name=\"email\" required placeholder=\"you@company.com\" autocomplete=\"email\" aria-label=\"Your work email\">\n            <button type=\"submit\" class=\"btn btn-light gkms-submit\">Send request<\/button>\n          <\/div>\n          <input type=\"text\" class=\"gkms-hp\" name=\"company_hp\" tabindex=\"-1\" autocomplete=\"off\" aria-hidden=\"true\">\n          <label class=\"gkms-consent\"><input type=\"checkbox\" class=\"gkms-consent-cb\" name=\"consent\" required><span>By submitting this form, I confirm I have read and understood the <a href=\"https:\/\/gekkophotonics.com\/en\/privacy-policy\/\" target=\"_blank\" rel=\"noopener\">privacy policy<\/a> <span class=\"gkms-req\">*<\/span><\/span><\/label>\n          <p class=\"gkms-msg\" aria-live=\"polite\"><\/p>\n        <\/form>\n        <p class=\"cta-alt\"><a href=\"https:\/\/gekkophotonics.com\/products\/spectrally-inline\/\">Explore Spectrally X1 INLINE -&gt;<\/a><\/p>\n      <\/div>\n    <\/div>\n  <\/section>\n<footer class=\"foot\">\n    <div class=\"wrap\">\n      <div class=\"foot-grid\">\n        <div>\n          <img decoding=\"async\" class=\"flogo\" src=\"https:\/\/gekkophotonics.com\/wp-content\/uploads\/2026\/07\/logo-full-1.png\" alt=\"Gekko Photonics\">\n          <p class=\"ftag\">Engineering-Driven Analytics. 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