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首页> 外文期刊>Food Chemistry >A highly-efficient and cost-effective pretreatment method for selective extraction and detection of perchlorate in tea and dairy products
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A highly-efficient and cost-effective pretreatment method for selective extraction and detection of perchlorate in tea and dairy products

机译：一种高效且经济高效的预处理方法，用于选择性提取和检测茶叶和乳制品中高氯酸盐

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摘要

In view of the high polarity and ubiquitous occurrence of perchlorate, achieving an ultra-trace analysis has become a challenging task. The present study aimed to develop a simple and generic pretreatment protocol based on cold-induced liquid-liquid extraction to efficiently extract perchlorate from tea and dairy products and remarkably decrease potential matrix interferences and laborious cleanup. By optimizing the pretreatment conditions, the enrichment factor of perchlorate increased by 7.79 times under the compromise between the matrix effect and extraction recovery. The validated method presented satisfactory selectivity, linearity, accuracy, precision, and matrix effect, providing recoveries of 78.2%-106.2% with RSDr ranging from 1.2% to 7.9% and RSDR less than 10.7% for tea and dairy products. This pretreatment protocol depended only on shaking, freezing, and centrifugation in one step, without additional equipment or tedious operations, which will be explored to a greater extent in complex biological or food matrices.
机译：鉴于高极性和高氯酸盐发生，实现超痕量分析已成为一个具有挑战性的任务。本研究旨在发展基于冷诱导的液液萃取的简单仿古预处理方案，以有效地从茶和乳制品中提取高氯酸盐，并显着降低潜在的基质干扰和费力清理。通过优化预处理条件，在基质效应和提取恢复之间的折衷中，高氯酸盐的富集因子增加了7.79倍。验证方法呈现令人满意的选择性，线性度，精度，精度和矩阵效应，提供78.2％-106.2％的回收率，RSDR为1.2％至7.9％，茶叶和乳制品的RSDR少于10.7％。这种预处理方案仅依赖于一步，无需额外的设备或繁琐的操作，在没有额外的设备或繁琐的操作中，这将在复杂的生物或食物基质中更大程度地探讨。

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  • 来源
    《Food Chemistry》 |2020年第30期|127113.1-127113.8|共8页
  • 作者

    Li Shaohua; Ren Jun; Zhang Yiping; Li Lifeng; Zhao Yunfeng; Chen Dawei; Wu Yongning;

  • 作者单位

    Wuyi Univ Dept Rehabil Wuyishan 354300 Fujian Peoples R China|Chinese Acad Med Sci Food Safety Res Unit 2019RU014 China Natl Ctr Food Safety Risk Assessment NHC Key Lab Food Safety Risk Assessment Beijing 100021 Peoples R China;

    Wuhai Inspect & Testing Ctr Wuhai 016000 Peoples R China|Minist Nat Resources Inst Oceanog 3 Tech Innovat Ctr Utilizat Marine Biol Resources Xiamen 361005 Peoples R China;

    Chinese Acad Med Sci Food Safety Res Unit 2019RU014 China Natl Ctr Food Safety Risk Assessment NHC Key Lab Food Safety Risk Assessment Beijing 100021 Peoples R China|Minist Nat Resources Inst Oceanog 3 Tech Innovat Ctr Utilizat Marine Biol Resources Xiamen 361005 Peoples R China;

    Wuhai Inspect & Testing Ctr Wuhai 016000 Peoples R China;

    Chinese Acad Med Sci Food Safety Res Unit 2019RU014 China Natl Ctr Food Safety Risk Assessment NHC Key Lab Food Safety Risk Assessment Beijing 100021 Peoples R China;

    Chinese Acad Med Sci Food Safety Res Unit 2019RU014 China Natl Ctr Food Safety Risk Assessment NHC Key Lab Food Safety Risk Assessment Beijing 100021 Peoples R China;

    Chinese Acad Med Sci Food Safety Res Unit 2019RU014 China Natl Ctr Food Safety Risk Assessment NHC Key Lab Food Safety Risk Assessment Beijing 100021 Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Perchlorate; Liquid chromatography-high resolution mass spectrometry; Cold-induced liquid-liquid extraction; Tea; Dairy products;

    机译：高氯酸盐;液相色谱 - 高分辨率质谱;冷诱导的液 - 液萃取;茶叶;乳制品;

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