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23479

Sigma-Aldrich

Nitrite/Nitrate Assay Kit, colorimetric

used for detection of nitric oxide metabolites

Synonym(s):

Nitrate/Nitrite Assay Kit, colorimetric

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About This Item

UNSPSC Code:
12161503
NACRES:
NA.84

Quality Level

usage

sufficient for 100 assays

suitability

passes test for application

storage temp.

2-8°C

Application

Nitric oxide (NO), a gaseous paramagnetic radical, is a very important and versatile messenger in biological systems. NO is synthesized from L-arginine by NO synthase (NOS). It has been identified as an endothelial derived relaxation factor (EDRF) and antiplatelet substance. It serves as a neurotransmitter derived from a neutrophile and a cytotoxic substance from an activated macrophage. Although NO′s molecular action in the biological system is very versatile, the most important role of NO is the activation of guanylate cyclase.

The Griess assay is one of the most popular and simplest methods used to detect the NO concentration. The Griess assay′s mechanism is summarized as the azo coupling between diazonium species, which are produced from sulfanilamide with NO2, and naphthylethylenediamine. The NO2/NO3 Assay Kit contains these dyes, a nitrate reductase, an enzyme co-factor, buffer solution and NO2, NO3 solutions as standards. Therefore, total NO metabolites are easily detectable using this kit. The suitable NO2 detection range is from 10 to 100 μM.

Kit Components Only

Product No.
Description

  • NaNO2 Standard Solution (100 mM) 1 bottle

  • NaNO3 Standard Solution (100 mM) 1 bottle

  • Buffer solution (20 mM, pH 7.6) 1 bottle

  • Nitrate reductase (lyophilized) 1 bottle

  • Enzyme Co-factor (lyophilized) 1 bottle

  • Griess Reagent A 1 bottle

  • Griess Reagent B 1 bottle

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Description
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Pictograms

CorrosionExclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Met. Corr. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

8A - Combustible corrosive hazardous materials

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Junyao Yang et al.
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Atherosclerosis is a serious public health concern. Excessive inflammatory responses of vascular cells are considered a pivotal pathogenesis mechanism underlying atherosclerosis development. It is known that Janus kinase/signal transducer and activator of transcription 3 (JAK/STAT3) signalling plays an important role
Jolanta Zuwała-Jagiełło et al.
Clinical and experimental hepatology, 1(3), 105-111 (2015-11-01)
To determine plausible associations between liver cirrhosis and circulating endothelial cell-derived microparticles (EMPs), vascular endothelial growth factor (VEGF) levels and plasma nitric oxide (NO) metabolites. Sixty patients with cirrhosis and 20 healthy control subjects were enrolled in the study. Circulating
Othman A Al-Shboul et al.
Biomedical reports, 9(6), 511-516 (2018-12-14)
Previous studies have shown that progesterone could inhibit muscle contraction in various sites of the gastrointestinal tract. The underlying mechanisms responsible for these inhibitory effects of progesterone are not fully known. The aim of the current study was to investigate
Fredrik Sjövall et al.
PloS one, 9(5), e97673-e97673 (2014-05-16)
The levels of nitric oxide (NO) and various cytokines are known to be increased during sepsis. These signaling molecules could potentially act as regulators and underlie the enhancement of mitochondrial function described in the later phase of sepsis. Therefore, we

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