The Convergent Immunopathogenesis of Cigarette Smoke Exposure: From Oxidative Stress to Epigenetic Reprogramming in Chronic Disease. [PDF]
Int J Mol SciFenercioglu AK, Uzun H, Unal DO.
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Separation and detection of volatile and non-volatile N-nitrosamines
The Analyst, 1970The detection of small concentrations of N-nitrosamines in biological materials requires their prior selective extraction and concentration. A procedure is described for the separation of both volatile and non-volatile N-nitrosamines as a class, and their subsequent determination at low levels.
C L, Walters, E M, Jhnson, N, Ray
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The Estimation of Total Non-Volatile Nitrosamines and Nitrosamides in Microgram Amounts
Analytical Letters, 1973Abstract Nitrosamines and nitrosamides are denitrosated by thionyl chloride to form nitrosyl chloride, which can be volatilized in a stream of nitrogen, trapped in alkali and determined as inorganic nitrite. Other compounds containing a N-O bond such as nitramines and nitramides do not react similarly under the conditions used.
T. G. Lunt, D. G. Fueggle, C. L. Walters
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Abstract An HPLC method has been developed for the determination of nitrosamines. Five nitrosamines were separated simultaneously on a 250 mm×4.6 mm i.d. Phenomenex Luna CN (particle size 5 µm) column with methanol‐1.0 m M K2HPO4 (pH 4.0) solvent, programmed as mobile phase and with a photodiode array detector.
Lai‐Hao Wang +2 more
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Liquid chromatographic determination of non-volatile nitrosamines by post-column redox reactions and voltammetric detection at solid electrodes. Behaviour of the Ce(IV)-Ce(III) couple at gold, platinum and glassy carbon electrodes and suitability of the Ce(IV) reagent [PDF]
Analytica Chimica Acta, 1992 Abstract The suitability of Ce(IV) in acidic medium as post-column reagent in the liquid chromatographic (LC) amperometric determination of non-volatile nitrosamines was investigated by studying the Ce(IV)-Ce(III) couple with a rotating disk electrode, whose behavior approaches the operational conditions of a “channel-thin-layer” cell with solid ...
SACCHETTO G. A. +3 more
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Optimization of the amperometric detection of nitrite by reaction with iodide in a post-column reactor for liquid chromatography of non-volatile nitrosamines. [PDF]
Analytica Chimica Acta, 1994 Abstract Following previous studies on this subject, the use of iodide reagent in acidic medium for the liquid chromatographic amperometric determination of non-volatile nitrosamines has been investigated in a two-line flow-injection manifold coupled with a voltammetric flow-through detector.
G. A. SACCHETTO +3 more
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Determination of a non-volatile N-nitrosamine on a food matrix
The Analyst, 1978A method devised for the determination of N-nitrososarcosine, in which the N-nitrosamine in solution is denitrosated with hydrogen bromide to form volatile products that are rapidly removed and determined in a chemiluminescence analyser, has been applied successfully to the same compound on powdered corn flakes.
C L, Walters +3 more
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Assay of suntan lotions for the carcinogenic, non-volatile N-nitrosamine N-nitrosodiethanolamine
Cancer Letters, 1990N-nitrosodiethanolamine (NDELA) is a carcinogenic, non-volatile nitrosamine that has been shown to pass readily through the skin of animals and humans. It has often been found as a contaminant in cosmetics. Twenty different suntan lotions, available in Israel, both liquids and creams, were analyzed for NDELA content.
J B, Westin +3 more
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Abstract A gas chromatographic-mass spectrometric procedure based on characteristic-ion monitoring is described for the separation and detection of trace amounts of some non-volatile nitrosamines. A silver-frit interface and a modified spectrometer-inlet system used to transfer material from the gas chromatograph to the mass spectrometer are ...
T A, Gough, K S, Webb
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Analysis of non-volatile nitrosamines by moving belt liquid chromatography/mass spectrometry
Biological Mass Spectrometry, 1985Non-volatile nitrosamines exemplified by nitroso amino acids, -dipeptides, -oxazolidines and -thiazolidines have been analysed by moving belt liquid chromatography/mass spectrometry (LC/MS) and spectra obtained by ammonia chemical ionization. Optimal conditions such as source temperature, source pressure and belt vaporizer temperature have been ...
Iain G. Beattie +3 more
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