| Literature DB >> 12069417 |
K V H Sastry1, R P Moudgal, J Mohan, J S Tyagi, G S Rao.
Abstract
A macro and micro assay for the spectrophotometric determination of serum nitrite and nitrate was developed. Nitrite/nitrate in biological samples can be estimated in a single step by this method. The principle of the assay is the reduction of nitrate by copper-cadmium alloy, followed by color development with Griess reagent (sulfanilamide and N-naphthylethylenediamine) in acidic medium. This assay is sensitive to 1 microM nitrate and is suitable for different biological fluids, including sera with a high lipid concentration. The copper-cadmium alloy used in the present method is easy to prepare and can completely reduce nitrate to nitrite in an hour. The present method provides a simple, cost-effective assay for the estimation of stable oxidation products of nitric oxide in biological samples.Entities:
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Year: 2002 PMID： 12069417 DOI： 10.1006/abio.2002.5676
Source DB: PubMed Journal: Anal Biochem ISSN： 0003-2697 Impact factor: 3.365