{"id":2785,"date":"2026-07-20T13:25:53","date_gmt":"2026-07-20T11:25:53","guid":{"rendered":"https:\/\/gekkophotonics.com\/nitrogen-fertilizers-def\/proof\/"},"modified":"2026-07-20T13:30:58","modified_gmt":"2026-07-20T11:30:58","slug":"proof","status":"publish","type":"page","link":"https:\/\/gekkophotonics.com\/de\/nitrogen-fertilizers-def\/machbarkeitsnachweis-inline-raman-ergebnisse\/","title":{"rendered":"Feasibility Proof &#8211; Inline Raman Results on Nitrogen Fertilizers &#038; DEF\/AdBlue Matrices | Gekko Photonics"},"content":{"rendered":"<style>.elementor-2785 .elementor-element.elementor-element-253ae87{margin-top:0px;margin-bottom:0px;padding:0px 0px 0px 0px;}.elementor-2785 .elementor-element.elementor-element-80c2885 > .elementor-element-populated{padding:0px 0px 0px 0px;}@media(min-width:768px){.elementor-2785 .elementor-element.elementor-element-80c2885{width:100%;}}<\/style>\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"2785\" class=\"elementor 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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\/\" class=\"active\">Proof<\/a>\n      <a href=\"\/nitrogen-fertilizers-def\/compliance\/\">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> \/ Proof<\/div>\n    <span class=\"eyebrow\">Feasibility proof<\/span>\n    <h1 class=\"display\" style=\"margin-top:16px\">Not a promise - <span class=\"accent\">results on nitrogen and DEF matrices.<\/span><\/h1>\n    <p class=\"lead\">Feasibility studies on genuine fertilizer and DEF\/AdBlue samples: what was measured, how well it correlated with the reference method, and what your chemistry gets before anything is installed.<\/p>\n  <\/div>\n<\/header>\n\n<!-- ===== 01 \u00b7 WHAT A FEASIBILITY STUDY IS ===== -->\n<section id=\"fs-what\">\n  <div class=\"wrap\">\n    <div class=\"sec-head reveal\">\n      <span class=\"num\">01<\/span>\n      <span class=\"eyebrow\">Feasibility first<\/span>\n      <h2 class=\"h2\">A validated measurement on your matrix - before any hardware.<\/h2>\n      <p class=\"lead\">A Gekko feasibility study answers one question: can Raman measure your parameter, in your chemistry, at the accuracy you need. Real samples, a chemometric model built for your matrix, and a report that states what works and what does not - before any instrument commitment.<\/p>\n      <p class=\"lead\" style=\"margin-top:12px\">The study runs in the Gekko lab on the benchtop Spectrally X1 LAB - the same measurement and model stack that later runs inline on the Spectrally X1 INLINE at your line, where the analyzer reads composition in the pipe, reactor or mixer itself, with no sampling. What you see in the report is what the analyzer will read in production.<\/p>\n    <\/div>\n\n    <div class=\"tabpanels reveal\">\n      <div class=\"tabpanel active\">\n        <div>\n          <span class=\"tp-tag\">The method<\/span>\n          <h3>Your samples, measured against your reference method<\/h3>\n          <p>Nitrogen fertilizers and DEF\/AdBlue are not a generic matrix. Every result on this page comes from measurements on real samples - urea-based fertilizer granules in native form, aqueous ammonium-nitrate effluent, phosphoric-acid suspension, rinse water. Each study correlates the Raman spectrum with the method the producer trusts today - Kjeldahl total nitrogen, refractometry, titration, ion chromatography - and reports the agreement it found.<\/p>\n          <ul>\n            <li>Measured on a Spectrally X1 Raman spectrometer - 785 nm or 1064 nm laser, 8 cm&#8315;&sup1; resolution, 300-3500 cm&#8315;&sup1; range<\/li>\n            <li>At-line in vials or on a rotating plate, in-line with an immersion probe, or on-site at the plant with a mobile unit<\/li>\n            <li>Model metrics reported against your reference values, limitations included<\/li>\n          <\/ul>\n        <\/div>\n        <div class=\"tp-photo reveal\"><img decoding=\"async\" src=\"https:\/\/gekkophotonics.com\/wp-content\/uploads\/2026\/07\/gen-uan-sampling.jpg\" alt=\"Sampling point and valve on a liquid nitrogen fertilizer tank farm\"><\/div><\/div>\n    <\/div>\n\n    <div class=\"ctx-grid\" style=\"margin-top:56px\">\n      <div class=\"ctx-item reveal\"><div class=\"k\">Input<\/div><div class=\"v\">Samples or R&amp;D data<\/div><p>Representative process samples - granules, IBC or tanker draws, reactor pulls, effluent - or existing spectra and reference datasets.<\/p><\/div>\n      <div class=\"ctx-item reveal\"><div class=\"k\">Method<\/div><div class=\"v\">Raman + chemometrics<\/div><p>Full-spectrum models - band integration, regression, CNN - correlated against your reference method, not against assumptions.<\/p><\/div>\n      <div class=\"ctx-item reveal\"><div class=\"k\">Output<\/div><div class=\"v\">Feasibility report<\/div><p>Spectra, band assignments, model metrics versus reference values, and a clear result: positive, partial or negative.<\/p><\/div>\n      <div class=\"ctx-item reveal\"><div class=\"k\">Commitment<\/div><div class=\"v\">No hardware<\/div><p>The study runs before any instrument decision. If the measurement does not hold up, the report says so.<\/p><\/div>\n    <\/div>\n  <\/div>\n<\/section>\n\n<!-- ===== 02 \u00b7 HEADLINE RESULTS ===== -->\n<section id=\"fs-results\" class=\"ctx\">\n  <div class=\"wrap\">\n    <div class=\"sec-head reveal\">\n      <span class=\"num\">02<\/span>\n      <span class=\"eyebrow\">Headline results<\/span>\n      <h2 class=\"h2\">Numbers first. The full studies follow below.<\/h2>\n      <p class=\"lead\">Three results from feasibility work on nitrogen-fertilizer and DEF\/AdBlue matrices - each measured on genuine samples and correlated against the reference method. These are feasibility findings, not deployment figures.<\/p>\n    <\/div>\n    <div class=\"proof-grid\">\n      <div class=\"proof reveal\">\n        <div class=\"pbody\">\n          <h4>Total nitrogen in fertilizer granules<\/h4>\n          <p>Very strong linear correlation at <b>R = 0.91<\/b> between the raw Raman spectrum and declared total nitrogen, read through the nitrate band near <b>1050 cm&#8315;&sup1;<\/b> across 16 samples in the study register across the full declared range.<\/p>\n        <\/div>\n      <\/div>\n      <div class=\"proof reveal\">\n        <div class=\"pbody\">\n          <h4>Nitrate nitrogen, read directly<\/h4>\n          <p>Nitrate identified on an isolated band near <b>1044 cm&#8315;&sup1;<\/b> and quantified by direct band integration, with measurement repeatability at a standard deviation around <b>0.0004 a.u.<\/b><\/p>\n        <\/div>\n      <\/div>\n      <div class=\"proof reveal\">\n        <div class=\"pbody\">\n          <h4>Ammonium nitrogen via chemometrics<\/h4>\n          <p>Where the N-H signal is masked by water, a chemometric model on ammonium-nitrate standards reached high R&sup2; with a mean prediction error near <b>0.069%<\/b> across the <b>2.01-10.76% N-NH&#8324;&#8314;<\/b> standard range.<\/p>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n<\/section>\n\n<!-- ===== 03 \u00b7 STUDY BY STUDY ===== -->\n<section id=\"fs-studies\">\n  <div class=\"wrap\">\n    <div class=\"sec-head reveal\">\n      <span class=\"num\">03<\/span>\n      <span class=\"eyebrow\">Study by study<\/span>\n      <h2 class=\"h2\">Four feasibility studies, reported as measured.<\/h2>\n      <p class=\"lead\">The studies are anonymized by policy - no producer names, no locations. Everything else stays: the chemistry, the numbers and the limitations, including the ones that still need work before a pilot. Feasibility results, not deployments.<\/p>\n    <\/div>\n\n    <div class=\"tabpanels reveal\">\n      <div class=\"tabpanel active\">\n        <div>\n          <span class=\"tp-tag\">FS-002 &middot; Total nitrogen in granules &middot; At-line &middot; Result: positive<\/span>\n          <h3>Total nitrogen from one spectrum, no sample prep<\/h3>\n          <p>A producer needed total nitrogen - the parameter declared under Regulation (EU) 2019\/1009 - verified faster than the 60-90 minute Kjeldahl loop. The study measured urea-based fertilizer granules in their native form, carrying inorganic additives and an organic coating, with no preparation. Sixteen representative granule samples spanning the full declared nitrogen range were measured at-line on a rotating plate with an XYZ-positioned probe.<\/p>\n          <ul>\n            <li>Measured at 1064 nm to suppress the fluorescence from dopants and the organic coating<\/li>\n            <li>Total nitrogen read through the nitrate band near 1050 cm&#8315;&sup1;, best descriptor Peak Area, with preprocessing limited to dark-spectrum subtraction<\/li>\n            <li>Very strong linear correlation, R = 0.91, on raw data - established before any chemometric model was built<\/li>\n            <li>The same spectra also resolved the coating and tentatively dolomite, pointing to multi-parameter potential<\/li>\n          <\/ul>\n        <\/div>\n        <div class=\"tp-photo\"><img decoding=\"async\" src=\"https:\/\/gekkophotonics.com\/wp-content\/uploads\/2026\/07\/probe-atline-detail.jpg\" alt=\"Spectrally X1 PROBE positioned for at-line measurement\"><\/div>\n      <\/div>\n    <\/div>\n\n    <div class=\"tabpanels reveal\" style=\"margin-top:28px\">\n      <div class=\"tabpanel active\">\n        <div>\n          <span class=\"tp-tag\">FS-005 &middot; Ammonium &amp; nitrate nitrogen &middot; At-line &middot; Result: partial<\/span>\n          <h3>Nitrate read directly, ammonium through the model<\/h3>\n          <p>An ammonium-nitrate producer needed nitrogen composition in an aqueous effluent that swings hard - pH 1 to 12, 20 to 60 &deg;C, low viscosity with small, occasional turbidity spikes. Roughly one minute of acquisition was sufficient for both nitrogen forms. The nitrogen chemistry transfers directly to UAN\/RSM, where the same two species set the declared %N.<\/p>\n          <ul>\n            <li>Nitrate identified directly on an isolated band near 1044 cm&#8315;&sup1; (symmetric stretch), quantified by band integration, repeatability at a standard deviation around 0.0004 a.u.<\/li>\n            <li>Ammonium N-H bands are masked by the broad water O-H signal and are not observable in the current optical configuration<\/li>\n            <li>Addressed with a chemometric model on ammonium-nitrate standards (2.01-10.76% N-NH&#8324;&#8314;): high R&sup2;, mean prediction error near 0.069% over the standard range<\/li>\n            <li>Stated limits: direct ammonium at single-ppm level needs an optics change - a smaller grating - and calibration on real effluent<\/li>\n          <\/ul>\n        <\/div>\n        <\/div>\n    <\/div>\n\n    <div class=\"tabpanels reveal\" style=\"margin-top:28px\">\n      <div class=\"tabpanel active\">\n        <div>\n          <span class=\"tp-tag\">FS-001 &middot; P&#8322;O&#8325; &amp; H&#8322;SO&#8324; in phosphoric acid &middot; Ex-situ &middot; Result: partial<\/span>\n          <h3>A suspension that has to be filtered first<\/h3>\n          <p>A fertilizer producer wanted P&#8322;O&#8325; and sulfuric acid in a phosphoric-acid suspension at pH around 1 - adjacent fertilizer chemistry rather than nitrogen. Measured in situ, the suspension defeats Raman: the solid phase, fluorescence and interference fringes swamp the signal. After centrifugation, the picture is clean.<\/p>\n          <ul>\n            <li>Ex-situ on the clarified liquid: clear bands at 890 cm&#8315;&sup1; (phosphoric) and 976 cm&#8315;&sup1; (sulfuric), with quantitative potential<\/li>\n            <li>In-situ measurement in the raw suspension was not feasible - reported as measured, not glossed over<\/li>\n            <li>Recommendation: on-line automatic filtration ahead of the probe<\/li>\n          <\/ul>\n        <\/div>\n        <\/div>\n    <\/div>\n\n    <div class=\"tabpanels reveal\" style=\"margin-top:28px\">\n      <div class=\"tabpanel active\">\n        <div>\n          <span class=\"tp-tag\">FS-003 &middot; Contaminants in cleaning water &middot; At-line &middot; Result: partial<\/span>\n          <h3>Where Raman draws its own boundary in rinse water<\/h3>\n          <p>A study on cleaning-water contaminants marked the limit directly. Sodium is Raman-inactive and cannot be measured; sulfate stands in as a cleanliness surrogate for it. This is adjacent fertilizer feasibility - a boundary study, not a composition model.<\/p>\n          <ul>\n            <li>Sulfate (SO&#8324;&#178;&#8315;) measurable and usable as a cleanliness indicator where the Raman-inactive Na&#8314; cannot be read<\/li>\n            <li>Nitrate detectable at higher concentration on a band above 1000 cm&#8315;&sup1;<\/li>\n            <li>The value here is a clear statement of what the technique covers in rinse water, and what it does not<\/li>\n          <\/ul>\n        <\/div>\n        <\/div>\n    <\/div>\n  <\/div>\n<\/section>\n\n<!-- ===== 04 \u00b7 THE REGISTRY ===== -->\n<section id=\"fs-registry\" class=\"band\">\n  <div class=\"wrap\">\n    <div class=\"sec-head reveal\">\n      <span class=\"num\">04<\/span>\n      <span class=\"eyebrow no-line\" style=\"color:var(--gk-blue-400)\">The full registry<\/span>\n      <h2 class=\"h2\" style=\"color:#fff;margin-top:12px\">Eighteen studies. Not eighteen success stories.<\/h2>\n      <p class=\"lead\" style=\"color:#C8D0DC\">The feasibility registry spans eleven industrial segments. Results are reported as measured: positive, partial or negative. Partial means feasible with stated conditions - usually more reference data, an optics change or a pilot. One study came back negative, and the report said so.<\/p>\n    <\/div>\n    <div class=\"metrics\" id=\"gkms-metrics\">\n      <div class=\"metric\"><div class=\"mk\">Feasibility studies<\/div><div class=\"mv\" data-to=\"18\">18<\/div><p>Run on real customer samples across eleven industrial segments.<\/p><\/div>\n      <div class=\"metric\"><div class=\"mk\">Nitrogen &amp; fertilizer studies<\/div><div class=\"mv\" data-to=\"4\">4<\/div><p>Total-N granules, ammonium and nitrate N, phosphoric-acid and cleaning-water feasibility - detailed above.<\/p><\/div>\n      <div class=\"metric\"><div class=\"mk\">Positive results<\/div><div class=\"mv\" data-to=\"5\">5<\/div><p>Plus 12 partial - feasible, with the conditions stated in the report.<\/p><\/div>\n      <div class=\"metric\"><div class=\"mk\">Reported negative<\/div><div class=\"mv\" data-to=\"1\">1<\/div><p>Where the measurement did not hold up, the report said so.<\/p><\/div>\n    <\/div>\n  <\/div>\n<\/section>\n\n<!-- ===== 05 \u00b7 HOW THE STUDY RUNS ===== -->\n<section id=\"fs-process\" class=\"ctx\">\n  <div class=\"wrap\">\n    <div class=\"sec-head reveal\">\n      <span class=\"num\">05<\/span>\n      <span class=\"eyebrow\">How the study runs<\/span>\n      <h2 class=\"h2\">From a crate of samples to a validation report.<\/h2>\n      <p class=\"lead\">The sequence is the same whether the study runs in the Gekko lab or on-site at your plant with a mobile unit.<\/p>\n    <\/div>\n    <div class=\"how-grid\">\n      <div class=\"cycle reveal\">\n        <div style=\"font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--gk-blue-400);margin-bottom:18px\">Study sequence<\/div>\n        <div class=\"ring\" id=\"gkms-cycle\">\n          <div class=\"cyc-step on\"><div class=\"ci\"><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=\"M12 3.5c3 3.5 5 6.2 5 8.8a5 5 0 0 1-10 0c0-2.6 2-5.3 5-8.8z\"\/><\/svg><\/div><div class=\"ct\">Samples<\/div><\/div>\n          <div class=\"cyc-arrow\">&rarr;<\/div>\n          <div class=\"cyc-step\"><div class=\"ci\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><rect x=\"3\" y=\"9\" width=\"18\" height=\"6\" rx=\"1.5\"\/><path d=\"M12 3v6\"\/><circle cx=\"12\" cy=\"3.6\" r=\"1.4\" fill=\"currentColor\" stroke=\"none\"\/><\/svg><\/div><div class=\"ct\">Measure<\/div><\/div>\n          <div class=\"cyc-arrow\">&rarr;<\/div>\n          <div class=\"cyc-step\"><div class=\"ci\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><rect x=\"6.5\" y=\"6.5\" width=\"11\" height=\"11\" rx=\"2\"\/><rect x=\"10\" y=\"10\" width=\"4\" height=\"4\" rx=\"1\"\/><path d=\"M9.5 6.5V4M14.5 6.5V4M9.5 20v-2.5M14.5 20v-2.5M6.5 9.5H4M6.5 14.5H4M20 9.5h-2.5M20 14.5h-2.5\"\/><\/svg><\/div><div class=\"ct\">Model<\/div><\/div>\n          <div class=\"cyc-arrow\">&rarr;<\/div>\n          <div class=\"cyc-step\"><div class=\"ci\"><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 3h7l4 4v14H7z\"\/><path d=\"M14 3v4h4\"\/><path d=\"M10 12h5M10 16h5\"\/><\/svg><\/div><div class=\"ct\">Report<\/div><\/div>\n        <\/div>\n        <div class=\"cyc-cap\">Send representative samples or existing R&amp;D data. Measurement runs on a Spectrally X1 Raman spectrometer - 785 nm or 1064 nm, 8 cm&#8315;&sup1; resolution, 300-3500 cm&#8315;&sup1; - in parallel with your reference method. Chemometric models are built on the full spectrum and validated against the reference values. The report closes with a result: <b>positive, partial or negative<\/b>.<\/div>\n      <\/div>\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\"><rect x=\"3\" y=\"4.5\" width=\"18\" height=\"12\" rx=\"1.5\"\/><path d=\"M8.5 20h7M12 16.5V20\"\/><path d=\"M7 11l2.5-2.5 2 2L15 7.5\"\/><\/svg><\/div><div><h4>Measured against your reference, not ours<\/h4><p>Study samples are read in parallel on the Raman system and the method you trust today - Kjeldahl total nitrogen, refractometry, titration, ion chromatography. The model is only as good as its agreement with those values, and that agreement is what the report shows.<\/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\"><rect x=\"3\" y=\"9\" width=\"18\" height=\"6\" rx=\"1.5\"\/><path d=\"M12 3v6\"\/><circle cx=\"12\" cy=\"3.6\" r=\"1.4\" fill=\"currentColor\" stroke=\"none\"\/><\/svg><\/div><div><h4>The mode matches your process<\/h4><p>At-line in vials or on a rotating plate for screening, an immersion probe for process-like conditions, or on-site measurement with a mobile unit. The studies above used at-line and ex-situ measurement on real material.<\/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=\"M7 3h7l4 4v14H7z\"\/><path d=\"M14 3v4h4\"\/><path d=\"M10 12h5M10 16h5\"\/><\/svg><\/div><div><h4>Limitations in writing<\/h4><p>Water-masked ammonium bands, an optics change for single-ppm work, filtration ahead of the probe, sparse reference data - whatever the study finds goes in the report, together with what is needed to close it before a pilot.<\/p><\/div><\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n<\/section>\n\n<!-- ===== 06 \u00b7 WHAT YOU RECEIVE ===== -->\n<section id=\"fs-deliverables\">\n  <div class=\"wrap\">\n    <div class=\"sec-head reveal\">\n      <span class=\"num\">06<\/span>\n      <span class=\"eyebrow\">Deliverables<\/span>\n      <h2 class=\"h2\">What lands on your desk.<\/h2>\n      <p class=\"lead\">Every study closes with the same set of deliverables - the same ones the studies above produced.<\/p>\n    <\/div>\n\n    <div class=\"ctx-grid\">\n      <div class=\"ctx-item reveal\"><div class=\"k\">01 &middot; Report<\/div><div class=\"v\">Spectra, bands, metrics<\/div><p>Measured spectra with band assignments, model performance against your reference values, and a clear statement of the result.<\/p><\/div>\n      <div class=\"ctx-item reveal\"><div class=\"k\">02 &middot; Model<\/div><div class=\"v\">Built on your matrix<\/div><p>A chemometric model scoped to your chemistry - full-spectrum regression, CNN or direct band integration - with its validity range stated.<\/p><\/div>\n      <div class=\"ctx-item reveal\"><div class=\"k\">03 &middot; Recommendation<\/div><div class=\"v\">Mode and installation point<\/div><p>Where the measurement should sit - immersion probe in the reactor, mixer or circulation line - and the recommended hardware configuration for a pilot.<\/p><\/div>\n      <div class=\"ctx-item reveal\"><div class=\"k\">04 &middot; Limitations<\/div><div class=\"v\">Stated, not hidden<\/div><p>Open items and what closes them - additional reference samples, an optics change, upstream filtration - so the pilot decision rests on facts.<\/p><\/div>\n    <\/div>\n\n    <div class=\"product\" style=\"margin-top:64px\">\n      <div class=\"reveal\">\n        <span class=\"eyebrow\">If the study is positive<\/span>\n        <h2 class=\"h2\" style=\"margin:12px 0 14px\">The hardware the model runs on<\/h2>\n        <p class=\"lead\">A positive study transfers to the process as Spectrally X1 INLINE with the immersion Spectrally X1 PROBE, and Spectrally OS turning the spectrum into process values for your control system. The model built in the study becomes the starting point for pilot calibration under dynamic process conditions - the same chemistry, the same bands, on your line. The study establishes deployment feasibility on your matrix and hands you the accuracy figures and the savings case to take forward.<\/p>\n      <\/div>\n    <div class=\"tp-photo reveal\"><img decoding=\"async\" src=\"https:\/\/gekkophotonics.com\/wp-content\/uploads\/2026\/07\/gen-nitrogen-plant-wide.jpg\" alt=\"Interior of a nitrogen fertilizer and DEF\/AdBlue plant with stainless tanks and process piping\"><\/div><\/div>\n  <\/div>\n<\/section>\n\n<div class=\"pager\">\n    <span><a href=\"\/nitrogen-fertilizers-def\/how-it-works\/\">&larr; How it works<\/a><\/span>\n    <span><a href=\"\/nitrogen-fertilizers-def\/compliance\/\">Compliance &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\">Run the next study on your nitrogen or DEF stream.<\/h2>\n        <p>Send representative samples or R&D data from your urea, UAN\/RSM, AdBlue\/DEF or biuret process. We measure them against your reference method - Kjeldahl, refractometry, titration or ion chromatography - build a chemometric model on your matrix and report the result - positive, partial or negative - before any hardware commitment.<\/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-proof\" 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. Real-time process composition with inline Raman spectroscopy.<\/p>\n        <\/div>\n        <div>\n          <h5>Platform<\/h5>\n          <a href=\"https:\/\/gekkophotonics.com\/products\/spectrally-inline\/\">Spectrally X1 INLINE<\/a>\n          <a href=\"https:\/\/gekkophotonics.com\/\">Spectrally X1 PROBE<\/a>\n          <a href=\"https:\/\/gekkophotonics.com\/\">Spectrally OS<\/a>\n        <\/div>\n        <div>\n          <h5>This mini-site<\/h5>\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\/\">Compliance<\/a>\n          <a href=\"\/nitrogen-fertilizers-def\/instrument\/\">Instrument<\/a>\n        <\/div>\n        <div>\n          <h5>Contact<\/h5>\n          <a href=\"mailto:contact@gekkophotonics.com\">contact@gekkophotonics.com<\/a>\n          <a href=\"https:\/\/gekkophotonics.com\/\">gekkophotonics.com<\/a>\n          <div class=\"addr\">NextCorps, 260 E. Main Street, Suite 6000<br>Rochester, NY 14604, USA<\/div>\n        <\/div>\n      <\/div>\n      <div class=\"fbottom\">\n        <span>&copy; 2026 Gekko Photonics Sp. z o.o. 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