AI Article Synopsis
- - This study developed a method to simultaneously detect 50 types of pesticides in Angelicae Sinensis Radix using liquid chromatography tandem mass spectrometry (LC-MS/MS).
- - Key steps involved optimizing extraction, purification, and detection processes, leading to successful extraction with acetonitrile and effective separation of compounds.
- - The method showed high accuracy, with over 93.9% recovery for most pesticides and calibration compliance, making it useful for routine checks on pesticide safety in Angelicae Sinensis Radix.
Article Abstract
The present study is to establish a method for simultaneous determination of 50 kinds of pesticides in Angelicae Sinensis Radix by using liquid chromatography tandem mass spectrometry. The forbidden,restricted and customary pesticides were picked out as detecting indexes according to the principals of risk management. The factors affecting the extraction,purification,and detection were optimized,and the final condition was established as follows: the samples were extracted with acetonitrile. The separation of target compounds were performed by liquid column,and quantitative analysis was carried out by LC-MS/MS with MRM model. The calibration curves were linear in the range of 1-100 μg·L~(-1) with correction coefficients of greater than 0. 990. The recoveries of more than 93. 9%pesticides were ranged from 60% to 140% at three spiked levels. The detecting indexes in the method cover most forbidden and restricted pesticides,which is meaningful for the safety supervision of the Angelicae Sinensis Radix. With the advantage of rapidness and accuracy,this method can be used for routine determination of multi-pesticides in Angelicae Sinensis Radix.
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| http://dx.doi.org/10.19540/j.cnki.cjcmm.20181121.002 | DOI Listing |
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