摘要
研究了 8 羟基喹啉 (HR)与Au(Ⅲ )形成的配合物AuR+ 2 ,对K2 S2 O8氧化鲁米诺的增强作用 ,基于此建立了金的化学发光分析新方法 .以 8 羟基喹啉为配位体时 ,Au(Ⅲ )的检出限为 8× 10 -11μg/L ,工作曲线响应浓度范围在 1× 10 -9～ 1× 10 -7μg/L ,测定 1× 10 -7μg/LAu(Ⅲ )离子的RSD为 2 .0 % .
A new complex chemiluminescence, i. e., luminol K\-2S\-2O\-8 catalyzed by AuR\++\-2 complex is reported. Based on this catalyse a new chemiluminescence method for determining trace of Au(Ⅲ) is proposed. The detection limit is 1×10\+ -8 g/L Au(Ⅲ). The linear dynamic range is 1×10\+ -6 ～1×10\+ -4 g/L Au(Ⅲ) and the variation coefficient at a concentration of 1×10\+ -4 g/L Au(Ⅲ) is 2.0 %(n=5). This method has been applied satisfactorily in the determination of trace gold in silicate.
出处
《分析测试技术与仪器》
CAS
2000年第3期167-170,共4页
Analysis and Testing Technology and Instruments
