硝酸镁氧化ICP-AES测定四川土壤全硫初探
Preliminary Study on the Determination of Total Sulfur in Sichuan Soil by Magnesium Nitrate Oxidation ICP-AES
张伟 1黄艺 2钟礼春 3翟娟 2李秉成3
作者信息
- 1. 成都产品质量检验研究院有限责任公司,四川成都,610100;成都理工大学,四川成都,610059
- 2. 成都理工大学,四川成都,610059
- 3. 成都产品质量检验研究院有限责任公司,四川成都,610100
- 折叠
摘要
采用改进的硝酸镁氧化提取法,在波长 181.975 nm下,用ICP-AES对 3 种国家土壤标准物质(四川土壤)进行全硫含量的测定,结果表明:当硝酸镁溶液的加入量为 1.25 mL时,能够更好地提取出土壤中的全硫,精密度和准确度都较高,测定结果与标准值相符.该法操作简单,流程短,更节能环保,测定结果稳定可靠,适合大批量的土壤样品分析,可应用于四川低硫土壤全硫的测定.
Abstract
Using an improved magnesium nitrate oxidation extraction method,the total sulfur content of three national soil reference materials(Sichuan soil)was determined by ICP-AES at a wavelength of 181.975 nm.The results showed that when the amount of magnesium nitrate solution added was 1.25 mL,the total sulfur in the soil could be better extracted,with high precision and accuracy,and the measurement results were consistent with the standard values.This method is simple to operate,has a short process,is more energy-efficient and environmentally friendly,and has stable and reliable measurement results.It is suitable for the analysis of large-scale soil samples and can be applied to the determination of total sulfur in low sulfur soils in Sichuan.
关键词
硝酸镁氧化/ICP-AES/土壤/硫/测定Key words
magnesium nitrate oxidation/ICP-AES/soil/sulfur/determination引用本文复制引用
基金项目
国家自然科学基金面上项目项目(41977289)
出版年
2024
NETL
NSTL
万方数据