Determination of Halosulfuron-Methyl in Bell Peppers Using QuEChERS and CE/MS/MS
نویسندگان
چکیده
This application note describes a fast analytical method for determination of halosulfuron-methyl using QuEChERS and capillary electrophoresis tandem mass spectrometry (CE/MS/MS). The method was developed and validated for halosulfuron-methyl in green and yellow bell peppers. It showed good linearity (R2 > 0.999) from 5.0 to 500 ppb for the analytical curves prepared in background electrolyte and extracts of bell peppers. The limits of quantification (LOQ) for green and yellow bell peppers were 1.3 ppb and 2.3 ppb, respectively. The limits of detection (LOD) were 0.4 ppb and 0.7 ppb, respectively. Precision and accuracy were verified through recovery of spiked samples at 10, 20, and 50 ppb, in five replicates. Recovery values ranged from 98 to 112% with RSD lower than 5%.
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