摘要
以多孔玻板吸收管采样,采用离子色谱法同时测定作业场所空气中的氟化氢、氯化氢和硫酸,采样效率>92%。氟化氢在0 mg/L～2.00 mg/L、氯化氢在0 mg/L～2.50 mg/L、硫酸在0 mg/L～4.00 mg/L范围内线性良好,检出限分别为0.003 mg/m3、0.02 mg/m3、0.023 mg/m3(按采样体积60 L计),标准溶液平行测定的RSD≤8.0%,两个质量浓度水平加标的平均回收率为92.6%～106%。
The hydrogen fluoride,chlorine hydride and sulphuric acid in the air were determined by sampling of multi-hole absorbing tubes and testing of ion chromatography.The results showed the sampling efficiency92%;good linearity ranged from 0 mg/L to 2.00 mg/L for hydrogen fluoride,from 0 mg/L to 2.50 mg/L for chlorine hydride,from 0 mg/L to 4.00 mg/ for sulphuric acid;detection limits 0.003 mg/m3 for hydrogen fluoride,0.02 mg/m3 for chlorine hydride and 0.023 mg/m3 for sulphuric acid（air sampling volume 60 L）;RSD of standard solution duplicates≤8.0%;average spiked recoveries of two concentration levels from 92.6% to 106%.
出处
《环境监测管理与技术》
2012年第2期54-56,共3页
The Administration and Technique of Environmental Monitoring
关键词
氟化氢
氯化氢
硫酸
离子色谱法
空气
Hydrogen fluoride
Chlorine hydride
Sulphuric acid
Ion chromatography
Air
