Abstract: A method was developed for the simultaneous determination of 9 triazole pesticides in environmental water using C18 cartridge for the extraction and enrichment, NH2 cartridge for the clean-up and gas chromatography-mass spectrometry for the detection. The linear range of calibration curves for the 9 target pesticides was between 0.025 mg/L and 0.500 mg/L. The detection limits were in the range of 0.002-0.009 μg/L. The 9 target pesticides were measured in river water and sea water at 0.025 μg/L and 0.100 μg/L spiking levels, recoveries and relative standard deviations (RSD, n=3) were 68.4%-113.9% and 1.6%-6.9% for river water and 70.3%-115.2% and 0.8%-8.2% for sea water, respectively. The method is simple, sensitive, selective and suitable for the qualification of pesticide multiresidue analysis. It has been successfully applied to the survey of 9 triazole pesticide residues in Jiulong River Estuary, Fujian.

Key words: environment waters , solid phase extraction (SPE), triazole pesticides, gas chromatography-mass spectrometry (GC-MS)