摘要
在0.2～0.3mol/L HCl介质中,有CTMAB和OP混合表面活性剂存在下,锑(Ⅲ)与邻氯苯基荧光酮(o-CIPF)形成的配合物最大吸收在518nm,摩尔吸光系数为7.91×10~4,锑在0～12μg/25ml范围内服从比尔定律.Sb(Ⅲ):o-CIPF=1:2和1:5.拟定的方法可直接测定铅锌矿及铝合金中的微量锑,结果满意.
In the presence of the mixed surfactants of cetyltrimethylammonium bromide and eraulsifier OP, the color reaction of Sb(Ⅲ)with o-chlorophenylfluorone (o-ClPF) in the medium of 0.2-0.3mol/L HC1 has been studied.The maximum absorbance of the complex is measured at 518nm with apparent molar absorptivity to be 7.91×104 L- mol-1 cm-1. The ratio of Sb to o-ClPF is 1:2 and 1:5. Beer's law is obeyed in 0-12ng/25ml for antimony.The method has been used to the determination of trace antimony in lead-zinc ore and aluminium alloy with satisfactory results.
出处
《冶金分析》
CAS
CSCD
北大核心
1991年第3期12-14,共3页
Metallurgical Analysis
