Workplace air — Determination of particulate cadmium and cadmium compounds — Flame and electrothermal atomic absorption spectrometric method
工作场所空气.颗粒镉和镉化合物的测定.火焰和电热原子吸收光谱测定法
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.