• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>Toxics >Degradation of Organophosphorus and Pyrethroid Insecticides in Beverages: Implications for Risk Assessment
【2h】

Degradation of Organophosphorus and Pyrethroid Insecticides in Beverages: Implications for Risk Assessment

机译：饮料中有机磷和拟除虫菊酯类农药的降解：风险评估的意义

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Since urinary insecticide metabolites are commonly used as biomarkers of exposure, it is important that we quantify whether insecticides degrade in food and beverages in order to better perform risk assessment. This study was designed to quantify degradation of organophosphorus and pyrethroid insecticides in beverages. Purified water, white grape juice, orange juice, and red wine were fortified with 500 ng/mL diazinon, malathion, chlorpyrifos, permethrin, cyfluthrin, cypermethrin, and deltamethrin, and aliquots were extracted several times over a 15-day storage period at 2.5 °C. Overall, statistically significant loss of at least one insecticide was observed in each matrix, and at least five out of seven insecticides demonstrated a statistically significant loss in all matrices except orange juice. An investigation of an alternative mechanism of insecticide loss—adsorption onto the glass surface of the storage jars—was carried out, which indicated that this mechanism of loss is insignificant. Results of this work suggest that insecticides degrade in these beverages, and this degradation may lead to pre-existing insecticide degradates in the beverages, suggesting that caution should be exercised when using urinary insecticide metabolites to assess exposure and risk.
机译：由于尿中杀虫剂代谢物通常用作暴露的生物标志物，因此重要的是，我们必须量化杀虫剂在食品和饮料中是否降解，以便更好地进行风险评估。这项研究旨在量化饮料中有机磷和拟除虫菊酯类杀虫剂的降解。用500 ng / mL的二嗪农，马拉硫磷，毒死rif，氯菊酯，氯氟氰菊酯，氯氰菊酯和溴氰菊酯强化纯净水，白葡萄汁，橙汁和红酒，并在15天的储存时间内以2.5倍提取等分试样。 ℃。总体而言，在每种基质中均观察到至少一种杀虫剂的统计学显着损失，并且在七种杀虫剂中，至少有五种在除橙汁之外的所有基质中均显示出统计学上显着的损失。对杀虫剂损失的另一种机理进行了研究，即吸附在储罐的玻璃表面上，这表明这种损失机理微不足道。这项工作的结果表明，这些饮料中的杀虫剂会降解，并且这种降解可能导致饮料中原有的杀虫剂降解，这表明在使用尿中的杀虫剂代谢物评估接触和风险时应谨慎行事。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号