空气中乙酰甲胺磷的采集与分析方法的研究

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０．０５２ｍｇ／ｍ＾３，当标准溶液浓度为３￣１５ｍｇ／Ｌ时，相对标准偏差为４．５％￣２．３％，线性范围为０．２￣１．０ｍｇ／ｍ＾３，解吸效率大于８５％，采样效率为１００％，样品在采样管中稳定时间２４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

Study on method of sampling and analysis of acephate in the air

Acephate in the air was collected with polyurethane foamed plastics, desorbed with methanl, separated with a column 2% DEGS and determined by GC-FPD. The detectable limit was 0.052 mg/m3. When the concentration of standard solution was 3-15 micrograms/ml, the relative standard deviation(RSD) was 4.5%-2.3%. The desorption efficiency was above 85%. The sampling efficiency was 100%. The samples were stable for 24 h. It was proved that the method was accurate, fast and simple. It was suitable for the determination of acephate in the air.