GRADE & PURITYBioReagent?BioReagent grade — tested suitable for life-science and molecular-biology use. Use for cell culture, assays, and biochemical work needing biological compatibility.
BioReagent BioReagent for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
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Storage & shipping
Store at 2-8°C Ships Wet ice Check lot-specific COA for exact specifications.
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Quality documents
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
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Literature proof
Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Overview
Nitrate nitrogen refers to the nitrogen element contained in nitrates. Organic matter in soil decomposes to form ammonium salts, which are converted into nitrate nitrogen after oxidation. As one of the major nitrogen forms absorbed by higher plants, soil nitrate nitrogen directly affects crop yield and quality.
Nitrate ions in soil extract exhibit distinct absorbance at 220 nm and show no characteristic absorption at 275 nm. The absorbance of soil extract measured at 275 nm is multiplied by a correction factor f to eliminate the interference of light absorption by organic matter at 220 nm. Based on this value, the content of nitrate nitrogen in soil can be calculated.
Storage and Shipping
Storage
Store at 2-8°C
Shipped In
Wet ice
Documentation
📋 Safety Data Sheet (SDS)
Comprehensive hazard, handling, storage, and regulatory compliance document.
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