Multiresidue Determination of Avermectins in Plant-Derived Food by UPLC-MS/MS

2012 ◽  
Vol 554-556 ◽  
pp. 1322-1326
Author(s):  
Yu Bing Zha ◽  
Chun Liang Yang ◽  
Ming Yue Wang ◽  
Yong Zhou Wang ◽  
Cheng Yu Luo ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
High Performance ◽  
Residue Analysis ◽  
Food Plant ◽  
Tandem Mass ◽  
Pesticide Residue Analysis ◽  
Accuracy And Precision ◽  
Multiresidue Determination ◽  
Concentration Levels

The objective of this study was to propose a method that the residues of avermectins (Abamectin, Emamectin Benzoate, Ivermectin, Eprinomectin and Doramectin) derived from the food plant were determined by UPLC-MS/MS. The avermectins were extracted with acetonitrile, purified by Alumina B or GCB/NH2 SPE cartridge, and then determined by ultra high-performance liquid chromatography with tandem mass spectrometry. Tests for recovery (Recovery rate: 80.6%～99.8%, RSD's: 0.22%～6.4%) were made by addition of avermectin standards at three different concentration levels (4, 20 and 100μg/kg) to five kinds of food plant as matrixes. The sensitivity, accuracy and precision of this method were able to meet the requirements for pesticide residue analysis.

Miniaturized QuEChERS method for determination of 97 pesticide residues in wine by ultra-high performance liquid chromatography coupled with tandem mass spectrometry

2020 ◽  
Vol 12 (21) ◽  
pp. 2682-2692 ◽  
Author(s):  
Gabrieli Bernardi ◽  
Magali Kemmerich ◽  
Martha B. Adaime ◽  
Osmar D. Prestes ◽  
Renato Zanella
Keyword(s):  
Mass Spectrometry ◽  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
High Performance ◽  
Preparation Method ◽  
Tandem Mass ◽  
Quechers Method ◽  
Sample Preparation Method ◽  
Multiresidue Determination

A miniaturized sample preparation method was developed and validated for the multiresidue determination of 97 pesticides in wine samples.

Study of High-Resolution Mass Spectrometry Technology as a Replacement for Tandem Mass Spectrometry in the Field of Quantitative Pesticide Residue Analysis

2012 ◽  
Vol 95 (2) ◽  
pp. 528-548 ◽  
Author(s):  
Anton Kaufmann ◽  
Veronika Dvorak ◽  
Claudio Crüzer ◽  
Patrick Butcher ◽  
Kathryn Maden ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
High Resolution ◽  
High Resolution Mass Spectrometry ◽  
Residue Analysis ◽  
Tandem Mass ◽  
Pesticide Residue Analysis ◽  
Accuracy And Precision ◽  
Mass Spectrometry Technology ◽  
Quantitative Performance ◽  
A Current

Abstract A validated LC/MS/MS-based multiresidue pesticide method was converted to an LC high-resolution MS single-stage Orbitrap platform. No changes regarding the cleanup and LC were made. Optimization of high-resolution MS-specific parameters and interface settings was kept at a minimum. The aim was to explore the capability of current Orbitrap technology to substitute for LC/MS/MS technology. The test included the quantitative performance (sensitivity, selectivity, linearity, accuracy, and precision) of some 240 analytes in three different matrixes. The LC/MS/MS instrumentation was operated at the edge of its technical limitations. A further extension of the number of analytes for LC/MS/MS would require the use of even narrower dwell times, significantly reducing sensitivity and reproducibility of measurement. No such limitations exist for the high-resolution technology. Similar performance was observed for both technologies. A current drawback of the high-resolution technology is the speed of data processing, which took significantly longer than for LC/MS/MS data due to the limited capabilities of the software.

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