nitrite


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Related to nitrite: nitrate

ni·trite

(nī'trīt),
A salt of nitrous acid.

nitrite

/ni·trite/ (ni´trīt) any salt or ester of nitrous acid.

nitrite

[nī′trīt]
Etymology: Gk, nitron, soda
an ester or salt of nitrous acid used as a vasodilator and antispasmodic. Among the most widely used nitrites in medicine are amyl, ethyl, potassium, and sodium nitrite.

ni·trite

(nī'trīt)
A salt of nitrous acid.

ni·trite

(nī'trīt)
A salt of nitrous acid.

nitrite

any salt of nitrous acid; organic nitrites are used in the treatment of angina pectoris in humans.

nitrite poisoning
causes methemoglobinemia and anemic anoxia. Signs are dyspnea and coffee color of mucosae and blood. Pregnant cows may abort several weeks later. Nitrite may come preformed in feed contaminated by a chemical agent, or in nitrate-rich food in which the nitrate is converted to nitrite during processing, e.g. low temperature cooking, heating of hay in a stack or moldering. Most cases are in ruminants which convert nitrate to nitrite in the rumen, the source being nitrate-rich plants. See also nitrate.
nitrite-treated fish meal
used as a preservative and color-preservation agent the nitrite is converted biologically to a toxic nitrosamine, dimethylnitrosamine.
References in periodicals archive ?
A two-way multifactor analysis of variance (ANOVA) was carried out using the Statgraphics Centurion XV statistical package on the ammonium and nitrite data from each strain to determine whether the effect is due to bacterial action or time.
The low-concentrate supplementation probably contributed to the nitrate/nitrite poisoning, since ruminal microbiota ability to detoxify nitrates and nitrites is energy-depending (VALLI, 2007).
But there's something about nitrates and nitrites that make themdangerous.
And how many realize that naturally occurring nitrates or nitrites are no safer than added nitrates or nitrites?
The results of ammonia, nitrite, nitrate, turbidity, settleable solids and total suspended solids were analyzed by two-way ANOVA (P < 0.
Table (2) revealed a decrease level of nitrite after induced hyperprolactinemia, then there was an observed elevation of nitrite after Thyme administration for two months, this indicated that thyme administration affect positively the elevation of nitrite.
The water-soluble copper porphyrinate, copper (II) porphyrinate (CuTPPs = [5,10,15,20- tetrakis(N-methylpyridyl-4)porhinato]copper(II) tetratosylate)), was previously examined by UV-Vis and electron paramagnetic (EPR) spectroscopy for its ability to engage in a number of reactions involving either axial ligation to the copper or possible redox cycling, with ligands and potential redox partners such as nitrite, imidazole, dithionite, 2,2'-azino-bis(3- ethylbenzthiazoline-6-sulphonic acid) (ABTS) and guaiacol [5].
A positive nitrite test strongly suggests UTI because nitrites in the urine indicate viable gram-negative organisms also are present in the urine.
Researchers randomized 299 patients (64% men) from 40 treatment centers across Europe to one of three dose regimens of sodium nitrite and citric acid, or placebo.
Sodium nitrate, also sometimes used, converts to nitrite in the body.
TEHRAN (FNA)- Iranian researchers from Islamic Azad University in association with a researcher from Finland produced a magnetic nanosorbent that adsorbs 60-100% of nitrate and nitrite existing in the sample.