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AN000607: Determination of Cationic Polar Pesticides in Cereals using Ion Chromatography and Tandem Mass Spectroscopy
Description
Pesticide contamination in food is a growing public concern. Polar pesticides, which are ionic and non-volatile, are much more suitable for ion chromatography separations combined with mass spectrometry detection. Mepiquat, chlormequat, paraquat, and diquat cationic polar pesticides were separated by cation exchange chromatography using an electrolytically generated MSA gradient at 0.3 mL/min and 40 °C on a Dionex IonPac CS21-Fast-4um cation-exchange column. As the quaternary amines eluted from the column, they were detected by tandem mass spectrometry by the TSQ Altis Plus.| Market: | Food and Beverage |
| Keywords: | Diquat, Magnesium, Mepiquat, Quaternary amine, RFIC, Potassium, IC, IC-MS-MS, Calcium, IC-MS, SRM, Paraquat, Sodium, Reagent-Free IC, Ammonium, polar pesticides, ICS-6000, chlormequat, MSA, Dionex IonPac CS21, Dionex IonPac CS21-Fast, Dionex IonPac CS21-Fast-4um, IonPac CS21, H-ESI-II, HESI-II, TSQ Altis, AN 000607, TN 73990, TN73990 |
| Matrix: | Formic acid-methanol extract: ground oats cereal |
| Author: | Terri Christison, John E. Madden, and Jeff Rohrer |
| Affiliation: | Thermo Fisher Scientific, Sunnyvale, CA USA |
