摘要
在0.24mol/L酒石酸钾钠-0.15mol/L KOH及pH 9.2的NH_4Cl-NH_3·H_2O介质中,Au(Ⅲ)与四(4-三甲铵苯基)卟啉(简称T(4TMAP)P)的配合物于-1.72V(vs·SCE)处产生一灵敏的吸附波,波高与Au浓度在0.001～0.25μg/ml内呈直线关系。用泡沫塑料分离富集后,测定地质样品中的痕量Au,结果满意。
In Seignette's salt solution, the complex formed from gold and meso-tetra (4-trimetylammoniumphenyl) porphyrin produces a clear, sensitive and steady polarographic adsorptive wave at Ep=-1.72V (TO. SCE). The peak height is directly proportional to gold concentration over the range 0.001-0.25μg/ml. The method has been used to determine trace gold in ores after selective enrichment with fqamed plastics.
出处
《岩矿测试》
CAS
CSCD
北大核心
1992年第4期336-338,共3页
Rock and Mineral Analysis
关键词
金
卟啉
吸附波
络合物
gold, polarographic adsorptive wave, tetra (4-trimethylammoniumphenyl) porphyrin
