聚乙二醇辛基苯基醚(OP)-硝酸银分光光度法测定作业场所空气中的硫化氢

Determination of hydrogen sulfide in air of workplace by spectrophotometry with octyl polyethylene glycol phenyl ether and Silver nitrate

目的:建立稳定、灵敏、可靠的聚乙二醇辛基苯基醚(OP)–硝酸银分光光度法测定作业场所空气中的硫化氢的方法。方法:OP体系中硝酸银与硫化氢反应生成稳定的硫化银,用于测定作业场所空气中硫化氢。结果:硫化氢浓度在0.05 mg/m3～8.00 mg/m3范围内呈良好的线性关系(R2)=0.9995,回收率在99.4%～100%范围,相对标准偏差在0.86%～3.5%(n=6)范围。结论:用聚乙二醇辛基苯基醚(OP)-硝酸银分光光度法测定作业场所空气中的硫化氢,具有操作简便、稳定、灵敏、准确等特点,结果满意。

Objective：To establish a stable, sensitive and reliable method for the determination of hydrogen sulfide in air of workplace by spectrophotometry with Octyl polyethylene glycol phenyl ether and silver nitrate. Methods： Silver sulfide was created by hydrogen sulfide and silver nitrate in the OP system, which could be applied in the analysis of hydrogen sulfide in air of workplace. Results ： The linearity in the concentration range of 0.05 mg/m^3 8.00 mg/m^3 was good（ R^2 =0. 9995 ） ,the recoveries were 99.4% - 100% and the relative standard deviation was 0.86% - 3.5% （ n = 6）. Conclusion： This method is simple, stable, sensitive and accurate for the determination of hydrogen sulfide in air of workplace by spectrophotometry with Octyl polyethylene glycol phenyl ether and silver nitrate.