Pesticide residues in rice planted in South and Southwest China.

IF 2.5 3区农林科学 Q2 CHEMISTRY, APPLIED Food additives & contaminants. Part B, Surveillance Pub Date : 2023-06-01 DOI:10.1080/19393210.2023.2191344

Guiquan Chen, Long Shi, Jiancong Wang, Siqi Zhu, Jialian Sheng, Xiaoyun Yang, Hanhong Xu

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引用次数: 1

Abstract

In 2019 and 2020, 70 paddy and 70 brown rice samples were collected from South China and Southwest China, wherein the residues of 15 target pesticides were investigated. A gas chromatography-mass spectrometry (GC-MS) method was established for the simultaneous detection of 15 pesticides, which achieved good linear relationship with limits of detection (LODs) of 0.10-4.00 μg kg^-1. The average recoveries and relative standard deviations (RSD) were satisfied for the pesticide residues detection. Analysis results showed that the detection rates of 15 typical pesticides in paddy and brown rice were 0%-12.9% and 0%-1.4%, respectively. None of the 15 pesticides exceed their maximum residue limit (MRL) stipulated by China. The pesticide with the highest detection rate and concentration was chlorpyrifos. This study can provide data support for the control of pesticide residues in rice and the realisation of the improving the efficiency of pesticide and fertiliser while reducing their application.

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中国南方和西南种植水稻的农药残留。

2019年和2020年，在华南和西南地区采集了70份水稻和70份糙米样品，调查了15种目标农药的残留情况。建立了同时检测15种农药的气相色谱-质谱联用方法，检出限(lod)为0.10 ~ 4.00 μg kg-1，呈良好的线性关系。该方法的平均回收率和相对标准偏差(RSD)均满足要求。分析结果表明，15种典型农药在水稻和糙米中的检出率分别为0% ~ 12.9%和0% ~ 1.4%。这15种农药均未超过中国规定的最大残留限量。检出率和浓度最高的农药为毒死蜱。本研究可为控制水稻农药残留，实现农药和化肥的高效减量施用提供数据支持。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Food additives & contaminants. Part B, Surveillance 农林科学-毒理学

CiteScore

5.30

自引率

10.30%

发文量

审稿时长

2.7 months

期刊介绍： Food Additives & Contaminants: Part B publishes surveillance data indicating the presence and levels of occurrence of designated food additives, residues and contaminants in foods, food supplements and animal feed. Data using validated methods must meet stipulated quality standards to be acceptable and must be presented in a prescribed format for subsequent data-handling. Food Additives & Contaminants: Part B restricts its scope to include certain classes of food additives, residues and contaminants. This is based on a goal of covering those areas where there is a need to record surveillance data for the purposes of exposure and risk assessment. The scope is initially restricted to: Additives - food colours, artificial sweeteners, and preservatives; Residues – veterinary drug and pesticide residues; Contaminants – metals, mycotoxins, phycotoxins, plant toxins, nitrate/nitrite, PCDDs/PCFDs, PCBs, PAHs, acrylamide, 3-MPCD and contaminants derived from food packaging. Readership: The readership includes scientists involved in all aspects of food safety and quality and particularly those involved in monitoring human exposure to chemicals from the diet. Papers reporting surveillance data in areas other than the above should be submitted to Part A . The scope of Part B will be expanded from time-to-time to ensure inclusion of new areas of concern.