工作场所空气中硫酸钡的检测方法研究

Determination method of barium sulfate in the air of workplace

目的 建立工作场所空气中硫酸钡的检测方法.方法 工作场所中的硫酸钡粉尘用过氯乙烯滤膜采集,经碱熔法处理后,用电感耦合等离子体发射光谱法（ICP-OES）进行测定.结果 工作场所空气中的硫酸钡粉尘,采用过氯乙烯滤膜进行样品采集的效率为100％;采用电感耦合等离子体发射光谱法,方法测定范围为0.1-100.0 μg/mL,方法准确度为93.0％-97.8％,批内精密度为3.7％- 7.6％,批间精密度为4.7％-8.8％.结论 样品采集和实验室检测方法研究结果均符合分析方法要求,适用于工作场所空气中硫酸钡的采集和测定.

Objective To establish the method for determination of barium sulfate in the air of workplace.Methods The barium sulfate was collected by dichloride ethylene filter membrane and then processed by alkali fusion method.Inductively coupled plasma optical emission spectrometry （ICP-OES） was used for the detection of barium sulfate.Results The sampling efficiency was 100%,the linearity of ICP-OES was good at the range of 0.1-100.0 μg/mL,the recovery was ranged from 93.0%-97.8%,the RSD of intra-and inter-batch precision were 3.7%-7.6% and 4.7%-8.8%,respectively.Conclusion The sampling method and determination method meet the requirements of analysis and apply to the collection and determination of barium sulfate in the air of workplace.