A method for the rapid determination of 23 organophosphorus pesticide residues in vegetables and fruits by SIM-GC-MS is described in this paper.Analysis is performed by gas-chromatography with mass selective detector...A method for the rapid determination of 23 organophosphorus pesticide residues in vegetables and fruits by SIM-GC-MS is described in this paper.Analysis is performed by gas-chromatography with mass selective detector（GC-MS）and selected ion monitoring（SIM）mode,and pesticides are positively confirmed by retention times and characteristic ion ratios.It takes less than 27 min to detect 23 organophosphorus pesticide residues.The spiked recoveries are between 70%～113%when the added pesticides concentration is in the range of 0.01μg～1.00μg.The RSD is less than 20%.The limit of detection is 0.001μg·g-1～0.06μg·g-1.This method is suitable for the daily detection of normal laboratory.展开更多
The method was proposed for detecting the pesticide residues such as organophosphorus and carbamates by GC/MS/SIM.The method is rapid and highly sensitive for 15 pesticide residues.
文摘A method for the rapid determination of 23 organophosphorus pesticide residues in vegetables and fruits by SIM-GC-MS is described in this paper.Analysis is performed by gas-chromatography with mass selective detector（GC-MS）and selected ion monitoring（SIM）mode,and pesticides are positively confirmed by retention times and characteristic ion ratios.It takes less than 27 min to detect 23 organophosphorus pesticide residues.The spiked recoveries are between 70%～113%when the added pesticides concentration is in the range of 0.01μg～1.00μg.The RSD is less than 20%.The limit of detection is 0.001μg·g-1～0.06μg·g-1.This method is suitable for the daily detection of normal laboratory.
文摘The method was proposed for detecting the pesticide residues such as organophosphorus and carbamates by GC/MS/SIM.The method is rapid and highly sensitive for 15 pesticide residues.
