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
This kit employs an alkaline buffer at pH 9.6–9.7 to extract nitrate ions from samples. During the extraction process, activated carbon is added to remove pigments, and a precipitant is added to eliminate proteins and other interfering substances. Taking advantage of the property that nitrate and nitrite ions exhibit equal absorbance at 219 nm in the ultraviolet region, the absorbance of the extract is measured. The result obtained is the combined absorbance of nitrate and nitrite. Since the nitrite content in fresh vegetables and fruits is extremely low and negligible, this measured value can be regarded as the absorbance attributable to nitrate. The nitrate content in the sample is then calculated based on a standard curve.
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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Products are supplied to verified businesses, institutions, and qualified professionals for research and development use only. Not for use in humans, animals, diagnosis, or therapy.
