Determination of Glufosinate in the Air of Workplace by Ion Chromatography
Glufosinate in the air of workplace was collected by glass fiber filter paper,separated by Metrosep A Supp 5-150 anion chromatographic column and determined by ion chromatography,with 1.92 mmol/L sodium carbonate-0.60 mmol/L sodium bicarbonate mixed solution as mobile phase.The method had a good lin-earity in the range of 0 mg/L~1.04 mg/L.The method detection limit was 0.012 mg/L.The minimum detecta-ble limit was 0.004 mg/m3 when the collection volume was 30 L.The recoveries of spiked blank samples in glass fiber filter paper were from 93.7%to 102%,and the RSDs of six measurements of the standard solutions were from 0.8% to 4.3%.