云南化工2025，Vol.52Issue(5)：100-103,4.DOI:10.3969/j.issn.1004-275X.2025.05.22
石墨炉-原子吸收光谱法测定土壤中的镉
Determination of Cadmium in Soil by Graphite Furnace-atomic Absorption Spectrometry
施白妮 1王学伟 1李鑫雯 1廖庆华1
作者信息
- 1. 云南省有色地质局 地质地球物理化学勘查院 测试中心,云南 昆明 650216
- 折叠
摘要
Abstract
The cadmium in soil was determinated Using Hitachi Z-2000 atomic absorption spectrophotometer,The sample was digested with royal water,with mixed acid:10％H2SO4+20％HCl,80 g/L thiourea solution as optimized matrix improvement agent,and the ash temperature of the instrument was 700～750℃,and the atomization temperature was 2200℃ to achieve the best analysis of the performance of cadmium in soil.On the conditions,the detection limit of cadmium in soil was 0.0047 mg/kg.The measured values of soil standard materials are within the allow-able error range of the standard value,the relative error is between 0 and 1.90％,the relative standard deviation(RSD)range is between 2.00％and 3.50％,and the RSD is less than or equal to 5％.The method is accurate and reliable,and meet the requirements of the test method of envi-ronmental soil samples.关键词
镉/石墨炉-原子吸收光谱法/基体改进剂/土壤Key words
Cadmium/Atomic Absorption of Graphite Furnace/Matrix Modification/Soil分类
化学化工引用本文复制引用
施白妮,王学伟,李鑫雯,廖庆华..石墨炉-原子吸收光谱法测定土壤中的镉[J].云南化工,2025,52(5):100-103,4.
