{"product_id":"atnar-nitrate-reductase","title":"AtNaR Nitrate Reductase (Enzyme Only)","description":"\u003ch2\u003eEPA-Compliant, Cadmium-Free Nitrate Reductase Enzyme for Laboratory Analysis\u003c\/h2\u003e\n\u003cp\u003eAtNaR Nitrate Reductase (Arabidopsis thaliana) was developed by NECi in conjunction with the \u003cstrong\u003eUnited States Geological Survey (USGS)\u003c\/strong\u003e to replace toxic cadmium used in automated colorimetric nitrate determination methods. The enzymatic nitrate reduction approach aligns with procedures referenced by the \u003cstrong\u003eU.S. Environmental Protection Agency (EPA)\u003c\/strong\u003e under \u003ca rel=\"noopener\" title=\"EPA 40 CFR Part 136\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/5830\/7948\/files\/MUR_2017-PUBLISHED_FED_REGISTER.pdf\" target=\"_blank\"\u003e\u003cstrong\u003e40 CFR Part 136\u003c\/strong\u003e\u003c\/a\u003e for nitrate determination in wastewater and environmental water samples.\u003c\/p\u003e\n\u003cp\u003eThis non-toxic, environmentally benign alternative provides reliable nitrate reduction using water-soluble reagents optimized for laboratory analysis.\u003c\/p\u003e\n\u003ch2\u003eProduct Format\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAtNaR Nitrate Reductase (Enzyme Only)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupplied as a \u003cstrong\u003efreeze-dried protein glass\u003c\/strong\u003e with enzyme diluent bulb\u003c\/li\u003e\n\u003cli\u003eAnimal origin free\u003c\/li\u003e\n\u003cli\u003eCustom unit sizes available upon request\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eReaction Principle\u003c\/h2\u003e\n\u003cp\u003eAtNaR catalyzes the reduction of \u003cstrong\u003enitrate (NO₃⁻) to nitrite (NO₂⁻)\u003c\/strong\u003e using \u003cstrong\u003eNADH as the electron donor\u003c\/strong\u003e.\u003cbr\u003eThe generated nitrite can then be quantified using standard colorimetric detection methods.\u003c\/p\u003e\n\u003cp\u003eOne unit will reduce 1.0 μmole of nitrate to nitrite per minute in an NADH system at pH 7 ± 0.5 at 30°C.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafe \u0026amp; Non-Toxic:\u003c\/strong\u003e Eliminates hazardous cadmium from your laboratory workflow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmentally Friendly:\u003c\/strong\u003e All reagents are water-soluble and environmentally benign\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExceptional Stability:\u003c\/strong\u003e Up to 6 months shelf life at room temperature, highly stable in working solution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior Performance:\u003c\/strong\u003e High specific activity AtNaR with high substrate specificity to reduce false positives\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Operating Range:\u003c\/strong\u003e Effective for analysis run between 20 – 45°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSalt Tolerant:\u003c\/strong\u003e Suited for 3%+ NaCl environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuality Assured:\u003c\/strong\u003e Recombinant enzyme manufactured in \u003cem\u003ePichia pastoris\u003c\/em\u003e under strict QA\/QC procedures for lot-to-lot consistency and reliability\u003c\/li\u003e\n\u003cli\u003eSmall sample size in relation to total assay volume\u003c\/li\u003e\n\u003cli\u003eLittle sample preparation required\u003c\/li\u003e\n\u003cli\u003eNo inhibition by organic or humic acids\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eIdeal for laboratories performing nitrate analysis in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDrinking water quality testing and regulatory compliance\u003c\/li\u003e\n\u003cli\u003eEnvironmental monitoring and surface water analysis\u003c\/li\u003e\n\u003cli\u003eWastewater treatment facility testing\u003c\/li\u003e\n\u003cli\u003eGroundwater contamination assessment\u003c\/li\u003e\n\u003cli\u003eAgricultural runoff monitoring\u003c\/li\u003e\n\u003cli\u003eResearch and development laboratories\u003c\/li\u003e\n\u003cli\u003eGovernment and regulatory testing facilities\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePlease refer to the \u003ca rel=\"noopener\" title=\"AtNaR Specification Sheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/5830\/7948\/files\/AtNaR_Specification_Sheet.pdf\" target=\"_blank\"\u003eAtNaR Specification Sheet\u003c\/a\u003e for more detailed information regarding AtNaR.\u003c\/p\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 rel=\"noopener\" title=\"Contact Us\" href=\"\/pages\/contact\" target=\"_blank\"\u003eContact us\u003c\/a\u003e to inquire about bulk quantity discounts or wholesale orders, or to request a quote for international orders.\u003ca href=\"mailto:sales@nitrate.com\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eResources \u0026amp; Downloads\u003c\/h2\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" title=\"AtNaR Specification Sheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/5830\/7948\/files\/AtNaR_Specification_Sheet.pdf\" target=\"_blank\"\u003eAtNaR Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" title=\"SDS for On-Site Phosphate Test Kits\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/5830\/7948\/files\/SDS_AtNaR_YNaR.pdf\" target=\"_blank\"\u003eSDS for AtNaR + YNaR\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" title=\"Nitrate Reductase Storage and Reconstitution\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/5830\/7948\/files\/NaR_Storage_and_Reconstitution.pdf\" target=\"_blank\"\u003eNitrate Reductase Storage and Reconstitution\u003c\/a\u003e\u003c\/p\u003e","brand":"NECi","offers":[{"title":"0.5 Unit","offer_id":53234793316716,"sku":"AtNaR-0.5U","price":15.0,"currency_code":"USD","in_stock":true},{"title":"1 Unit","offer_id":53133006176620,"sku":"AtNaR-1U","price":25.0,"currency_code":"USD","in_stock":true},{"title":"2 Units","offer_id":53133006209388,"sku":"AtNaR-2U","price":45.0,"currency_code":"USD","in_stock":true},{"title":"3 Units","offer_id":53133006242156,"sku":"AtNaR-3U","price":65.0,"currency_code":"USD","in_stock":true},{"title":"5 Units","offer_id":53133006274924,"sku":"AtNaR-5U","price":95.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/5830\/7948\/files\/AtNaR-0.5U_and_AtNaR-1U.jpg?v=1773778341","url":"https:\/\/nitrate.com\/products\/atnar-nitrate-reductase","provider":"NECi","version":"1.0","type":"link"}