摘要
本文发现在0.024mol/LHCl、0.02mol/LKCl、3.2×10^(-5)mol/L邻氯苯基萤光酮(O-ClPF)、0.00004％溴化十六烷基三甲铵(CTMAB)体系中,镓在单扫描示波极谱上有一尖锐、清晰、稳定、灵敏的导数极谱波,峰电位为-0.78V(VS·SCE)。镓的浓度在2×10^(-9)—4×10^(-7)g/ml 范围内与导数波高成正比。试验表明,该极谱波属于络合物吸附波。本法已用于测定铝箔、铝丝和铅锌矿中微量镓,结果满意。
In a supporting electorlyte containing 0.024mol/L HCl,0.02mol/L KCl,3.2×10^(-5)mol/L O-chlorophenylfluorone(O-C1PF),0.00004% cetyltrimethy-lammonium bromide(CTMAB)at PH1.55-1.75,a sensitive adsorptive complexwave of Gallium and O-C1PF has been obtained by using single sweep oscill-opolarography.The peak potential of the derivative wave is about-0.78V(VS.SCE).The change of peak height with concentration of Gallium islinear over the range from 2.0×10^(-9)g/ml to 4.0×10^(-7)g/ml.The mechanism ofelectrode reaction was studied by various methods.The wave was confirmedto be an adsorptive complex wave.The proposed method has been used fordetermination of trace Gallium in ores and metallic materials after priorseparation by solvent extraction.
出处
《广东工业大学学报》
CAS
1990年第4期43-49,共7页
Journal of Guangdong University of Technology
关键词
镓
邻氯苯基萤光酮
络合物吸附波.
Gallium
O-Chlorophenylfluorone (O-C1PF)
adsorptive complex wave.
