Graphite furnace atomic absorption spectrometry for determination of thallium in blood
10.3760/cma.j.issn.1001-9391.2016.04.019
- VernacularTitle:血中铊测定的石墨炉原子吸收光谱法
- Author:
Qinlong ZHANG
1
;
Ge GAO
Author Information
1. 610041,成都市疾病预防控制中心
- Keywords:
Colloidal palladium;
Spectrometry,atomic absorption;
Blood;
Thallium
- From:
Chinese Journal of Industrial Hygiene and Occupational Diseases
2016;34(4):302-304
- CountryChina
- Language:Chinese
-
Abstract:
Objective Colloidal palladium was used as chemical modifier in the determination of blood thallium by graphite furnace atomic absorption spectrometry.Methods Blood samples were precipitated with 5％ (V/V) nitric acid,and then determined by GFAAS with colloidal palladium used as a chemical modifier.0.2％ (W/V) sodium chloride was added in the standard series to improve the matrix matching between standard solution and sample.Results The detection limit was 0.2 μg/L.The correlation coefficient was 0.9991.The recoveries were between 93.9％ to 101.5％.The relative standard deviations were between 1.8％ to 2.7％.The certified reference material of whole blood thallium was determined and the result was within the reference range Conclusion The method is accurate,simple and sensitive,and it can meet the needs of detection thallium in blood entirely.
