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首页> 外文期刊>Analytical methods >Rapid residue analysis of pyriproxyfen, avermectins and diflubenzuron in mushrooms by ultra-performance liquid chromatography coupled with tandem mass spectrometry
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Rapid residue analysis of pyriproxyfen, avermectins and diflubenzuron in mushrooms by ultra-performance liquid chromatography coupled with tandem mass spectrometry

机译：超高效液相色谱-串联质谱法快速分析蘑菇中吡虫洛芬，阿维菌素和双氟苯隆的残留量

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摘要

A quick, easy, cheap, effective, rugged, and safe (QuEChERS) analytical procedure for the simultaneous determination of pyriproxyfen, diflubenzuron and avermectin residues in mushrooms and their substrates was developed using ultra-performance liquid chromatography coupled with tandem mass spectrometry (UPLC-MS/MS). Pyriproxyfen, diflubenzuron and avermectin were extracted with acetonitrile and the purification procedure was carried out using primary-secondary amine (PSA). The determination of target compounds was achieved in less than 3.0 min using an electrospray ionization source in positive mode (ESI+). Chromatographic separation was achieved using gradient elution with a mobile phase consisting of acetonitrile and water containing 0.2% formic acid. Average recoveries were in the range of 78.1a€“112.5% with the relative standard deviation values below 11.8% for all analytes. The limits of detection ranged from 0.016 to 1.5 ??g kga?’1, and limits of quantification ranged from 0.052 to 5 ??g kga?’1. The results of the method validation confirmed that this proposed method is convenient and reliable for the determination of pyriproxyfen, diflubenzuron and avermectin residues in mushrooms and their substrates.
机译：使用超高效液相色谱-串联质谱法（UPLC- MS / MS）。用乙腈提取吡咯氧芬，双氟苯隆和阿维菌素，并使用伯仲胺（PSA）进行纯化。使用正模式电喷雾电离源（ESI +），可以在不到3.0分钟的时间内完成目标化合物的测定。使用流动相进行梯度色谱分离，该流动相由乙腈和含有0.2％甲酸的水组成。所有分析物的平均回收率在78.1a€112.5％范围内，相对标准偏差值低于11.8％。检测极限范围为0.016至1.5 ?? g kga？-1，定量极限范围为0.052至5？g kga？1。方法验证的结果证实，该方法简便，可靠，可用于测定蘑菇及其底物中的吡虫杀酚，双氟苯隆和阿维菌素残留。

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