工作场所空气中颗粒状镉和镉化合物的测定火焰和电热原子吸收光谱法

[中文适用范围]： 本文件规定了使用火焰或电热原子吸收光谱法测定工作场所空气中颗粒镉和镉化合物质量浓度的方法。 10.2.2 中规定的样品消解程序已针对精选的镉化合物和含镉颜料和玻璃釉质进行了验证[2,3]。 该分析方法已经过验证[2]，可使用电热原子吸收光谱法测定每个样品 10 ng 至 600 ng 的镉质量，并使用火焰原子吸收光谱法测定每个样品 0.15 µg 至 96 µg 的镉质量。 [3 ]该程序适用的空气中镉的浓度范围部分取决于用户选择的采样程序。 该方法适用于 ISO 7708 中定义的可吸入或可呼吸空气颗粒部分的个人采样，以及固定采样。 [外文原描述]： This document specifies a method for the determination of the mass concentration of particulate cadmium and cadmium compounds in workplace air, using either flame or electrothermal atomic absorption spectrometry. The sample digestion procedure specified in 10.2.2 has been validated for a selection of cadmium compounds and pigments and glass enamels containing cadmium. The analytical method has been validated for the determination of masses of 10 ng to 600 ng of cadmium per sample using electrothermal atomic absorption spectrometry, and 0,15 µg to 96 µg of cadmium per sample using flame atomic absorption spectrometry. The concentration range for cadmium in air for which this procedure is applicable is determined in part by the sampling procedure selected by the user. The method is applicable to personal sampling of the inhalable or respirable fraction of airborne particles, as defined in ISO 7708, and to stationary sampling.