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本文报道了一个用苯—乙醇溶液为吸收液采集黄磷,气相色谱火焰光度检测器测定车间空气中黄磷的检测方法。当空气中黄磷浓度为0.016～5.470mg/m~3时,其采样效率为92.4～100.0％。与黄磷共存的五氧化二磷,磷化氢,红磷对该法无干扰。方法的精密度是当黄磷浓度为0.25、1.00、2.5mμg时,其变异系数分别为3.9％、10.2％和8.2％。回收率为85.0～99.2％。
In this paper, a method for the determination of yellow phosphorus in the air of workshop using benzene-ethanol solution as absorbing fluid to collect yellow phosphorus and gas chromatographic flame photometric detector was reported. When the concentration of yellow phosphorus in air is 0.016 ~ 5.470mg / m ~ 3, the sampling efficiency is 92.4 ~ 100.0%. Phosphorus pentoxide, phosphine and red phosphorus that coexist with yellow phosphorus have no interference with this method. The precision of this method was 3.9%, 10.2% and 8.2% when the concentration of yellow phosphorus was 0.25, 1.00 and 2.5 mμg respectively. The recovery rate was 85.0 ~ 99.2%.