工作场所空气中磷酸的电感耦合等离子体发射光谱测定法  

Determination of phosphoric acid in the air of workplace by inductively coupled plasma atomic emission spectrometry

作　　者：何玲[1] 张飞 刘滔[1] 曹霞[1] 朱岚[1] 游钒[1] HE Ling;ZHANG Fei;LIU Tao;CAO Xia;ZHU Lan;YOU Fan(Institute of Physicochemical Detection,Sichuan Center for Disease Control and Prevention,Chengdu,Sichuan 610041,China)

机构地区：[1]四川省疾病预防控制中心理化所

出　　处：《环境与健康杂志》2019年第5期449-451,共3页Journal of Environment and Health

摘　　要：目的建立工作场所空气中磷酸的电感耦合等离子体发射光谱测定法。方法空气中磷酸用微孔滤膜采样,超纯水洗脱,用电感耦合等离子体发射光谱在213.618 nm波长处测定磷酸中磷的含量,以标准曲线法定量。结果该方法在0.5~50μg/ml范围内有良好的线性关系,相关系数为0.9995。检出限为0.05μg/ml,工作场所空气中最低检出浓度为0.03mg/m3(以采集75 L空气样品计),加标回收率为93.7%~97.3%,相对标准偏差(RSD)为3.7%~5.6%。结论该方法快速、准确,适合工作场所空气中磷酸的测定。Objective To establish a method for determination of phosphoric acid in the air of workplace by inductively coupled plasma atomic emission spectrometry(ICP-AES).Methods Phosphoric acid in the air of workplace was sampled with micropore filtermem brane and eluted with water.The phosphorus in phosphoric acid was analyzed by ICP-AES at 213.618 nm.Analytes were quantified by standard curve method.Results For the method,good linearity was obtained over the range of 0.5-50μg/ml,and the correlation coefficients was 0.9995.The limits of detection was 0.05μg/ml,the minimum detectable contents was 0.03 mg/m3 in air of workplace with 75 L sampled air,the average recoveries were 93.7%-97.3%,the RSDs were 3.7%-5.6%.Conclusion The established method has high accuracy and is rapid for the determination of phosphoric acid in the air of workplace.

关 键 词：电感耦合等离子体发射光谱法 工作场所 空气 磷酸 

分 类 号：O657[理学—分析化学]