F-AAS法与GF-A AS法测定工作场所空气中铬及其化合物方法比对
Comparison of Determination Methods Between F-AAS and GF-A AS for Chromium and its Compounds in the Air of Workplaces
吴尧 1周赠洪 1舒千让 1周洋 1秦天1
作者信息
- 1. 重庆惠能标普科技有限公司,重庆 401121
- 折叠
摘要
采用357.9 nm波长条件下的火焰原子吸收光谱法(F-AAS法)和357.9、429.0 nm条件下的石墨炉原子吸收光谱法(GF-AAS法)分别测定工作场所空气中铬及其化合物,对检出限、精密度和准确度等多个指标作对比分析.结果表明,3种方法均能满足质量控制和职业卫生标准制定指南的要求;GF-AAS法在检出限和定量限方面优于F-AAS法,GF-AAS法测定结果在357.9 nm波长下优于429.0 nm,但在日常工作中的检测方法则需要根据工作场所的空气中铬的具体浓度高低的情况进行选择.
Abstract
The flame atomic absorption spectroscopy(F-AAS method)at a wavelength of 357.9 nm and the graphite furnace atomic absorption spectroscopy(GF-AAS method)at 357.9 nm and 429.0 nm were used to determine chromium and its compounds in the air of workplaces.Multiple indicators such as detection limit,precision,and accuracy were compared and analyzed.The results indicate that all three methods can meet the requirements of quality control and occupational health standard formulation guidelines.The GF-AAS method is superior to the F-AAS method in terms of detection limit and quantification limit.The GF-AAS method has better results than 429.0 nm at a wavelength of 357.9 nm.However,in daily work,the detection method needs to be selected based on the specific concentration of chromium in the air of the workplace.
关键词
工作场所空气/石墨炉原子吸收光谱法/火焰原子吸收光谱法/铬Key words
workplace air quality/graphite furnace atomic absorption spectroscopy/glame atomic absorption spectroscopy/chromium引用本文复制引用
出版年
2024
NETL
NSTL
万方数据