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空气中乙酰甲胺磷用聚氨酯泡沫塑料吸附和甲醇解吸 ,经 2 % DEGS色谱柱分离 ,火焰光度检测器检测。方法的检出限为 0 .0 5 2 mg/ m3,当标准溶液浓度为 3～ 15 m g/ L时 ,相对标准偏差为 4.5 %～ 2 .3% ,线性范围为 0 .2～ 1.0 mg/ m3。解吸效率大于 85 % ,采样效率为 10 0 % ,样品在采样管中稳定时间 2 4小时。通过现场试验 ,该方法快速简便、准确可靠 ,适用于车间空气中乙酰甲胺磷的测定。各项试验指标均符合劳动卫生监测要求
Acephate in the air with polyurethane foam adsorption and methanol desorption, 2% DEGS column separation, flame photometric detector detection. The detection limit of the method was 0. 05 2 mg / m3. The relative standard deviation was 4.5% -2.3% when the concentration of standard solution was 3 ~ 15 mg / L, and the linear range was 0.2-2.0 mg / m3. Desorption efficiency of more than 85%, the sampling efficiency of 10 0%, the sample in the sample tube stability time 24 hours. Through the field test, the method is rapid, simple, accurate and reliable and is suitable for the determination of acephate in the air of workshop. The test indicators are in line with labor and health monitoring requirements