Quantitative Ultra-Performance Liquid Chromatography Tandem Mass Spectrometry Method for Comparison of Prochloraz Residue on Garlic Sprouts after Soaking and Spraying Treatment

文献类型： 外文期刊

第一作者： Fang, Qingkui

作者： Fang, Qingkui;Cao, Haiqun;Ding, Chenchun;Wu, Ruifeng;Wu, Xiangwei;Hua, Rimao;Dong, Zhan;Guan, Shuai

作者机构：

关键词： Garlic sprout; Prochloraz; ultra-performance liquid chromatography tandem mass spectrometry; pesticide residue

期刊名称：INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH （ 影响因子：3.39； 五年影响因子：3.789 ）

ISSN： 1660-4601

年卷期： 2018 年 15 卷 7 期

页码：

收录情况： SCI

摘要： Prochloraz is a fungicide that is widely used on vegetables to maintain freshness during storage. To ensure that prochloraz is used in a safe way that reduces the levels of residue on the product, we evaluated two treatment methods (soaking and spraying) that are commonly used for garlic sprouts. An ultra-performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS) method was developed and validated for prochloraz residue on garlic sprouts. The linear range of the method was 5-500 mu g/kg and the correlation coefficient was 0.9983. The average recovery range was 88-94%, and the relative standard deviation range was 2.6-9.7%. Garlic sprout samples that had been soaked in or sprayed with prochloraz were collected from cold storage facilities in Laixi and Pingdu, China. For the soaked samples, the ranges for the levels of prochloraz residue on the whole garlic sprouts and stems (edible portion) were 15.76-25.14 mg/kg and 0.58-1.62 mg/kg, respectively. For the sprayed samples, the ranges for the levels of prochloraz residue on the whole garlic sprouts and stems were 1.85-7.89 mg/kg and 0.01-1.29 mg/kg, respectively. The results of this study provide a scientific basis for rationalizing the use of prochloraz and improving the safety of edible garlic sprouts.

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