摘要
在抗坏血酸存在时 ,基于在稀硫酸介质中钒 ( )催化加速溴酸钾氧化中性红的反应 ,建立了测定超痕量钒的新方法 ,方法测定范围是 0～ 0 .60 ng/ m L,检出限为 7.0× 1 0 -12 g/ m L,已用于人体血清和河水中超痕量钒的测定。
A new spectrophotometric method for determination of ultratrace vanadium was developed. The method was based on an reaction of neutral red with potassium bromate catalyzed by vanadium(Ⅴ) in a dilute H 2SO 4. The linear range of determination for vanadium(Ⅴ) is 0～0.60 ng/mL with detection limit of 7.0×10 -12 g/mL. The method was applied to determination of trace vanadium(Ⅴ) in river water and human serum samples with satisfactory results.
出处
《分析试验室》
CAS
CSCD
2000年第6期50-52,共3页
Chinese Journal of Analysis Laboratory
关键词
催化光度法
中性红
钒
血清
河水
测定
Catalytic spectrophotometry
Neutral red
Vanadium
Serum
River water
