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- Title
超级微波消解-石墨炉原子吸收光谱法测定不同类型土壤中的镉.
- Authors
曹静; 汪浩; 袁金华
- Abstract
The purpose of this study is to establish a method for determination of cadmium concentration in soil by super microwave digestion-graphite furnace atomic absorption spectrometry.The soil samples were digested by super microwave digestion system, the digestion system and instrument parameters included matrix modifier, ashing temperature were examined, and the optimum method conditions were determined.Under the optimal conditions, the linear range of cadmium was 0.0-1.0 μg/L with r=0.999,the detection limit of the method was 0.04 μg/L and limit of quantitation was 0.12 μg/L.The accuracy of the method was in the range of 94.5%-110%,the precision was in the range of 0.60%-5.4%.The method has been applied to detect different types of standard soils, and results were all in the standard range.The method is accurate, efficient and environment-friendly with less acid consumption, which can provide reliable analytical method support for soil heavy metal pollution monitoring.
- Subjects
HEAVY metal toxicology; POLLUTION monitoring; FURNACE atomic absorption spectroscopy; SOIL absorption &; adsorption; SOIL sampling; MICROWAVE heating; CADMIUM
- Publication
Chinese Journal of Inorganic Analytical Chemistry / Zhongguo Wuji Fenxi Huaxue, 2023, Vol 13, Issue 3, p205
- ISSN
2095-1035
- Publication type
Article
- DOI
10.3969/j.issn.2095-1035.2023.03.001