摘要
提出了利用溶剂浮选富集DDTC-Cu(Ⅱ)体系测定水样中痕量铜的方法(DDTC为二乙胺二硫代甲酸钠)。质量浓度的检出限为0.05ng·mL-1,线性范围为0.0~6.0ng·mL-1,测定含Cu(Ⅱ)4.0ng·mL-1的样品,相对标准偏差为0.85%,已用于天然水中Cu(Ⅱ)的测定。
new method with the solvent floatation gether
DDTCCu() system for determination of trace copper in water colmn is developed. The condition of
the most pure determination if checked,and the trace copper in natural water is measured. The
results of the test show the method has high sensitirity and precision.
出处
《分析试验室》
CAS
CSCD
1999年第3期93-95,共3页
Chinese Journal of Analysis Laboratory
基金
河南省自然科学基金
关键词
溶剂浮选
光度法
铜
测定
Solvent
floatation
photometric method
copper