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首页> 外文期刊>Food Chemistry >Digital image colorimetry detection of carbaryl in food samples based on liquid phase microextraction coupled with a microfluidic thread-based analytical device
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Digital image colorimetry detection of carbaryl in food samples based on liquid phase microextraction coupled with a microfluidic thread-based analytical device

机译：基于液相微萃取的基于微流体螺纹的分析装置的数字图像在食物样品中的数码图像比色测量检测

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摘要

This research used a digital image colorimetry (DIC) method to detect carbaryl in food samples using effervescence-assisted liquid phase microextraction based on solidification of switchable hydrophilicity solvent combined with a microfluidic thread-based analytical device (EA-LPME-SSHS-mu TAD). 1-naphthol, the hydrolysate of carbaryl, was extracted into octanoic acid by the adjustment of pH values of the sample solution and separated through solidification in an ice bath. Then 1-naphthol contained in the extracted solution was coupled with 4-methoxybenzenediazonlum tetrafluoroborate (MBDF) fixed on the mu TAD to produce tangerine compounds. The inherent colour variation was captured by a smartphone and processed to calculate the intensity (I). Under the optimal conditions, the limit of quantification was within 0.020-0.027 mg kg(-1). The recovery was varied in the range from 92.3% to 105.9% with a relative standard deviation (RSD) below 5%. The developed method provides an alternative strategy to extract and detect pesticides for food samples.
机译：本研究使用了数字图像比色法（DIC）方法使用基于可切换亲水性溶剂的凝固与基于微流体螺纹的分析装置（EA-LPME-SSHS-MU TAD）的可切换亲水性溶剂的凝固来检测食物样品中的Carbaryl 。通过调节样品溶液的pH值并通过冰浴中的凝固将1-萘唑萃取到辛酸中的水解产物。然后将提取的溶液中含有的1-萘酚与固定在MU TAD上的4-甲氧基苯齐亚Zonlum四氟硼酸盐（MBDF）偶联以产生橘子化合物。智能手机捕获固有的颜色变化并处理以计算强度（i）。在最佳条件下，量化限度在0.020-0.027mg kg（-1）范围内。回收率在92.3％至105.9％的范围内，相对标准偏差（RSD）低于5％。开发方法提供了替代策略，用于提取和检测食物样品的农药。

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  • 来源
    《Food Chemistry》 |2021年第1期|127971.1-127971.8|共8页
  • 作者

    Jing Xu; Wang Huihui; Huang Xin; Chen Zhenjia; Zhu Junling; Wang Xiaowen;

  • 作者单位

    Shanxi Agr Univ Coll Food Sci & Engn Taigu 030801 Shanxi Peoples R China|Shanxi Funct Food Res Inst Taigu 030801 Shanxi Peoples R China;

    Shanxi Agr Univ Coll Food Sci & Engn Taigu 030801 Shanxi Peoples R China;

    Shanxi Agr Univ Coll Food Sci & Engn Taigu 030801 Shanxi Peoples R China;

    Shanxi Agr Univ Coll Food Sci & Engn Taigu 030801 Shanxi Peoples R China|Shanxi Funct Food Res Inst Taigu 030801 Shanxi Peoples R China;

    Shanxi Agr Univ Coll Food Sci & Engn Taigu 030801 Shanxi Peoples R China|Shanxi Funct Food Res Inst Taigu 030801 Shanxi Peoples R China;

    Shanxi Agr Univ Coll Food Sci & Engn Taigu 030801 Shanxi Peoples R China|Shanxi Funct Food Res Inst Taigu 030801 Shanxi 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

    Microfluidic thread-based analytical devices; Switchable solvent; Effervescence; Digital image colorimetry; Carbaryl;

    机译：基于微流体螺纹的分析装置;可切换溶剂;泡腾;数字图像比色;Carbaryl;

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