{"product_id":"benchtop-nitrate-reagent-kit","title":"Benchtop Nitrate Test Kit","description":"\u003ch2\u003eQuantitative Nitrate Analysis for Laboratory Use\u003c\/h2\u003e\n\u003cp\u003eNECi's Benchtop Nitrate Test Kit delivers precise, enzyme-based nitrate quantification for any aqueous sample — from wastewater to soil and plant extracts. The test tube format uses recombinant Nitrate Reductase (NaR) to reduce nitrate (NO₃⁻) to nitrite (NO₂⁻) via NADH, which is then quantified colorimetrically at 540 nm ± 20 nm using your colorimeter or spectrophotometer. No toxic cadmium reduction required.\u003c\/p\u003e\n\u003ch2\u003eAvailable Ranges\u003c\/h2\u003e\n\u003cp\u003eNitrate is reported in different units depending on your field of use and where you live.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; border: 1px solid #000; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eNTK Test Tube Kits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 20%; border: 1px solid #000; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eppm Nitrate-N\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 20%; border: 1px solid #000; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eppm Nitrate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 20%; border: 1px solid #000; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eµM Nitrate\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; border: 1px solid #000; padding: 8px;\"\u003e\u003cstrong\u003eStandard Range Kit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 20%; border: 1px solid #000; padding: 8px; text-align: center;\"\u003e0.5 - 10.0\u003c\/td\u003e\n\u003ctd style=\"width: 20%; border: 1px solid #000; padding: 8px; text-align: center;\"\u003e2.0 - 44\u003c\/td\u003e\n\u003ctd style=\"width: 20%; border: 1px solid #000; padding: 8px; text-align: center;\"\u003e36 - 714\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; border: 1px solid #000; padding: 8px;\"\u003e\u003cstrong\u003eLow Range Kit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 20%; border: 1px solid #000; padding: 8px; text-align: center;\"\u003e0.05 - 1.0\u003c\/td\u003e\n\u003ctd style=\"width: 20%; border: 1px solid #000; padding: 8px; text-align: center;\"\u003e0.2 - 4.4\u003c\/td\u003e\n\u003ctd style=\"width: 20%; border: 1px solid #000; padding: 8px; text-align: center;\"\u003e3.6 - 71.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eKit Options\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e25 Sample or 100 Sample Analysis\u003c\/li\u003e\n\u003cli\u003eChoose either Freshwater or Saltwater Analysis\u003c\/li\u003e\n\u003cli\u003eChoose either Standard Range or Low Range\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eEnzyme Variants\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Range Freshwater Kit:\u003c\/strong\u003e Contains YNaR (Yeast Nitrate Reductase)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAll other variations\u003c\/strong\u003e (Standard Range Saltwater, Low Range Freshwater, Low Range Saltwater): Contain AtNaR (Arabidopsis thaliana Nitrate Reductase)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBoth enzymes provide the same high-quality, reliable results with the key features listed below.\u003c\/p\u003e\n\u003ch2\u003eMaterials You Will Need\u003c\/h2\u003e\n\u003cp\u003eYou will need a graduated cylinder, variable pipetters, a test tube vortex-type mixer, colorimeter or spectrophotometer with glass or plastic cuvettes, clean and nitrate-free 13 x 100mm test tubes, a timer, nitrate-free deionized water, concentrated HCl, and ice.\u003c\/p\u003e\n\u003ch2\u003eKit Contents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAssay Buffer\u003c\/li\u003e\n\u003cli\u003eColor Reagent No. 1 Powder (Sulfanilamide)\u003c\/li\u003e\n\u003cli\u003eColor Reagent No. 2 Powder (N-(1-Naphthyl)\u003cwbr\u003eethylenediamine)\u003c\/wbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFreeze Dried NADH\u003c\/li\u003e\n\u003cli\u003eFreeze Dried Nitrate Reductase\u003c\/li\u003e\n\u003cli\u003eEnzyme Diluent\u003c\/li\u003e\n\u003cli\u003e100 ppm Nitrate-N Standard\u003c\/li\u003e\n\u003cli\u003eMicrocentrifuge Tubes\u003c\/li\u003e\n\u003cli\u003eSet of Instructions\u003c\/li\u003e\n\u003cli\u003eNitrate-free Salt Water (only included in saltwater kits)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAnimal origin free\u003c\/li\u003e\n\u003cli\u003eRecombinant enzyme produced according to strict QA\/QC procedures, ensuring lot-to-lot consistency, reliability, and stability\u003c\/li\u003e\n\u003cli\u003ePurified by Immobilized Metal Affinity Chromatography (IMAC) guaranteeing greater than 95% purity\u003c\/li\u003e\n\u003cli\u003eSmall sample volume and enzyme reagents offer sustainability and no-hassle shipping, storage, and disposal for your laboratory\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWastewater and environmental water quality monitoring\u003c\/li\u003e\n\u003cli\u003eSoil and plant extract nitrate analysis\u003c\/li\u003e\n\u003cli\u003eAgricultural and food testing\u003c\/li\u003e\n\u003cli\u003eResearch and quality control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eStorage Conditions \u0026amp; Shelf Life Information*\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e*Shelf life guaranteed if stored as directed below\u003c\/em\u003e\u003c\/p\u003e\n\u003ctable style=\"border-collapse: collapse; width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #000; padding: 8px;\"\u003e\u003cbr\u003e\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #000; padding: 8px;\"\u003e-80°C\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #000; padding: 8px;\"\u003e-20°C\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #000; padding: 8px;\"\u003e4°C\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #000; padding: 8px;\"\u003eRT: 20°C – 25°C\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #000; padding: 8px;\"\u003eAbove 40°C\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #000; padding: 8px;\"\u003e\u003cstrong\u003eFreeze-Dried\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #000; padding: 8px;\"\u003e3+ Years\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #000; padding: 8px;\"\u003e2+ Years\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #000; padding: 8px;\"\u003e1+ Year\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #000; padding: 8px;\"\u003e6 months\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #000; padding: 8px;\"\u003eUp to 1 week\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #000; padding: 8px;\"\u003e\u003cstrong\u003eIn Solution*\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #000; padding: 8px;\"\u003e1+ Year\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #000; padding: 8px;\"\u003e6+ months\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #000; padding: 8px;\"\u003eUp to 1 week\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #000; padding: 8px;\"\u003eNot recommended\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #000; padding: 8px;\"\u003eNot recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e* Enzyme provided with enzyme diluent working solution, contains 25% glycerol\u003c\/p\u003e\n\u003ch2\u003eOrdering Information\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"\/pages\/contact\" title=\"Contact Us\" rel=\"noopener\" target=\"_blank\"\u003eContact us\u003c\/a\u003e to inquire about bulk quantity discounts or wholesale orders, or to request a quote for international orders.\u003c\/p\u003e\n\u003ch2\u003eResources \u0026amp; Downloads\u003c\/h2\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" title=\"Standard Range Test Tube Format Nitrate Test Kit Instructions: 25 Samples\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/5830\/7948\/files\/NTK-TTSR-25_instructions.pdf\" target=\"_blank\"\u003eStandard Range Test Tube Format Nitrate Test Kit Instructions: 25 Samples\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" title=\"Low Range Test Tube Format Nitrate Test Kit Instructions: 25 Samples\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/5830\/7948\/files\/NTK-TTLR-25_instructions.pdf\" target=\"_blank\"\u003eLow Range Test Tube Format Nitrate Test Kit Instructions: 25 Samples\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" title=\"Standard Range Test Tube Format Nitrate Test Kit Instructions: 100 Samples\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/5830\/7948\/files\/NTK-TTSR-100_instructions.pdf\" target=\"_blank\"\u003eStandard Range Test Tube Format Nitrate Test Kit Instructions: 100 Samples\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" title=\"Low Range Test Tube Format Nitrate Test Kit Instructions: 100 Samples\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/5830\/7948\/files\/NTK-TTLR-100_instructions.pdf\" target=\"_blank\"\u003eLow Range Test Tube Format Nitrate Test Kit Instructions: 100 Samples\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" title=\"SDS for Test Tube Format and Microplate Format Nitrate Test Kits\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/5830\/7948\/files\/SDS_Test_Tube_and_Microplate_kits.pdf\" target=\"_blank\"\u003eSDS for Test Tube Format and Microplate Format Nitrate Test Kits\u003c\/a\u003e\u003c\/p\u003e","brand":"NECi","offers":[{"title":"25 Sample Analysis \/ Standard Range:  0.5 ppm - 10.0 ppm Nitrate-N \/ Freshwater","offer_id":53132974883180,"sku":"NTK-TTSR-25","price":50.0,"currency_code":"USD","in_stock":true},{"title":"25 Sample Analysis \/ Standard Range:  0.5 ppm - 10.0 ppm Nitrate-N \/ Saltwater","offer_id":53132979536236,"sku":"NTK-TTSR-25S","price":50.0,"currency_code":"USD","in_stock":true},{"title":"25 Sample Analysis \/ Low Range:  0.05 ppm - 1.0 ppm Nitrate-N \/ Freshwater","offer_id":53132974915948,"sku":"NTK-TTLR-25","price":50.0,"currency_code":"USD","in_stock":true},{"title":"25 Sample Analysis \/ Low Range:  0.05 ppm - 1.0 ppm Nitrate-N \/ Saltwater","offer_id":53132979569004,"sku":"NTK-TTLR-25S","price":50.0,"currency_code":"USD","in_stock":true},{"title":"100 Sample Analysis \/ Standard Range:  0.5 ppm - 10.0 ppm Nitrate-N \/ Freshwater","offer_id":53132975014252,"sku":"NTK-TTSR-100","price":125.0,"currency_code":"USD","in_stock":true},{"title":"100 Sample Analysis \/ Standard Range:  0.5 ppm - 10.0 ppm Nitrate-N \/ Saltwater","offer_id":53132979667308,"sku":"NTK-TTSR-100S","price":125.0,"currency_code":"USD","in_stock":true},{"title":"100 Sample Analysis \/ Low Range:  0.05 ppm - 1.0 ppm Nitrate-N \/ Freshwater","offer_id":53132975047020,"sku":"NTK-TTLR-100","price":125.0,"currency_code":"USD","in_stock":true},{"title":"100 Sample Analysis \/ Low Range:  0.05 ppm - 1.0 ppm Nitrate-N \/ Saltwater","offer_id":53132979700076,"sku":"NTK-TTLR-100S","price":125.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/5830\/7948\/files\/NTK-TTLR-25.jpg?v=1774021203","url":"https:\/\/nitrate.com\/products\/benchtop-nitrate-reagent-kit","provider":"NECi","version":"1.0","type":"link"}