摘要
用鲁米诺－双氧水－铬（Ⅲ）化学发光体系结合巯基棉对Ａｓ（Ⅲ）的富集分离，建立了快速的测定化探样品中痕量砷的新方法，检测线性范围为１．０×１０－４～１．０×１０１ｍｇ／Ｌ，检出限为３．４×１０－５ｍｇ／Ｌ。用于实际化探样品测定，相对标准偏差为５．５％～９．０％。
new highly sensitive chemiluminescence(CL) method was developed for the determination of arsenic in geochemical samples,based on arsenic being enriched and separated from other ions on the column of sulfhydrylated cotton and CL reaction of luminol H 2O 2 Cr(Ⅲ).The relative standard deviation is 5.5%～9.0%.The proposed method has been applied to the determination of trace arsenic in geochemical exploration samples with satisfactory results.
出处
《分析试验室》
CAS
CSCD
1998年第1期16-18,共3页
Chinese Journal of Analysis Laboratory
关键词
化学发光
砷
巯基棉
化探样品
Chemiluminescence
arsenic
sulfhydrylated cotton
geochemical exploration samples
