工作场所空气中三氯氧磷的离子色谱测定法  

Determination of Phosphorus oxychloride in the air of workplace by ion chromatography

作　　者：赵淑岚[1] 张健[1] 张万超[1] 李建国[1] 张昊[1] 李浩[1] 

机构地区：[1]天津市疾病预防控制中心职业卫生所,300011

出　　处：《中华劳动卫生职业病杂志》2011年第2期148-149,共2页Chinese Journal of Industrial Hygiene and Occupational Diseases

摘　　要：目的建立工作场所空气中三氯氧磷（POCl3）的离子色谱测定方法。方法工作场所空气中的三氯氧磷用吸收液吸收后成为盐酸，用色谱柱分离、电导检测器检测，保留时间定性、峰高或峰面积定量。结果三氯氧磷在0．72～5．76μg／ml范围内呈线性关系，相关系数为0．9999；方法的检出限为0．12p．g／ml。当采样体积为15L时，工作场所空气中三氯氧磷的最低检出浓度为0．08mg／m^3。不同浓度的三氯氧磷相对标准偏差为3．3％～6．2％，回收率为97．8％～103．8％。样品在室温下至少可保存7d。结论该方法各指标符合GBZ／T210．4—2008（（职业卫生标准制定指南第4部分工作场所空气中化学物质测定方法》的要求，适用于工作场所空气中三氯氧磷的检测。Objective To establish a ion chromatography method for determination of phosphorus oxychloride in the air of workplace. Method The phosphorus oxychloride in the air of workplace was col- lected by absorb liquid and turned into hydrochloric acid, then separated in column and detected with conductivity detector, qualified by elution time and quantified by peak height or peak area. Results The linear range of phosphorus oxychloride in air of workplace was 0.72-5.76 μg/ml with its correlation coefficient 0.9999. The detecting limit of the method was 0.12 μg/ml. The smallest detecting concentration of the method was 0.08 mg/m^3 for 15 L sampling air. Relative standard deviation was 3.3%-6.2% and the recovery was 97.8%-103.8%. The sample could be resaved at room temperature at least for seven days. Conclusion The indicators of the method correspond GBZ/T 210.4-2008（（Guide for establishing occupational health standards-Part 4：Determination methods of air chemicals in workplace））. It is a good method to determine phosphorus oxychloride in the air of workplace.

关 键 词：空气 工作场所 三氯氧磷 色谱法 离子 

分 类 号：O65[理学—分析化学] R1[理学—化学]