Highly sensitive and selective spectrofluorimetric determination of nitrite in food products with a novel fluorogenic probe

文献类型： 外文期刊

第一作者： Huang, Haiwei

作者： Huang, Haiwei;He, Lan;Wang, Qiuhua;Ma, Sufang;Li, Minfeng;Cao, Aocheng

作者机构：

关键词： Nitrite;Spectrofluorimetric;Determination;Dihydropyridine

期刊名称：FOOD CONTROL （ 影响因子：5.548； 五年影响因子：5.498 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： A simple, sensitive, selective and convenient spectrofluorimetric method for detection of nitrite has been successfully developed. This method is based on the highly efficient and specific reaction of nitric oxide with a dihydropyridine derivative to form a highly fluorescent pyridine derivative, in aqueous solution. Under optimum conditions, excellent detection linear range was achieved from 0.2 to 4.5 mu mol L-1 with a detection limit of 0.021 mu mol L-1 (S/N = 3), lower than or comparable to most of other spectrofluorimetric methods. The relative standard deviation for ten determinations of 2.0 mu mol L-1 nitrite was 1.0%. The proposed method has been applied to determine nitrite levels in food products with recoveries of 93.3%-103.5%. (C) 2015 Elsevier Ltd. All rights reserved.

分类号： TS2

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