Determination of pyridaphenthion in soybean sprout samples by gas chromatography mass spectrometry with matrix matching calibration strategy after metal sieve linked double syringe based liquid-phase microextraction.
A novel analytical strategy for the trace determination of pyridaphenthion pesticide was developed in this study. Gas chromatography-mass spectrometry (GC-MS) was used for the accurate, feasible and precise determination of this analyte. Liquid phase microextraction (LPME) was performed with a metal sieve linked double syringe (MSLDS) system, which eliminated the need for a disperser solvent. In order to increase extraction efficiency for the analyte, all variable parameters were optimized and the system analytical performance of the proposed method was determined. Limit of detection and quantification (LOD and LOQ) values of pyridaphenthion were found to be 0.8 and 2.7 µg L-1, respectively. Compared to GC-MS system's analytical performance, the developed method provided approximately 273-folds improvement in the detection limit of the analyte. Applicability/accuracy of the developed analytical strategy was checked by recovery experiments carried out with soybean sprouts, and the results obtained were satisfactory.
['Özcan|Rümeysa|R|', 'Cesur|Buket|B|', 'Tezgit|Ezgi|E|', 'Unutkan Gösterişli|Tuğçe|T|', 'Bakırdere|Sezgin|S|']
D002138:Calibration D008401:Gas Chromatography-Mass Spectrometry D057230:Limit of Detection D059627:Liquid Phase Microextraction D008670:Metals D009946:Organothiophosphorus Compounds D010575:Pesticides D012997:Solvents D013025:Soybeans D013594:Syringes
Pyridaphenthion Soybean sprouts Syringe Liquid phase microextraction Gas chromatography–mass spectrometry