摘要
用氯离子选择电极以多次标准添加作图法测定三氧化二锑中微量 Cl-.锑对测定 Cl-的干扰 ,可用酒石酸和柠檬酸络合掩蔽消除 .该方法流程简单、检测快速 ,相对标准偏差小于 7% ,加料回收率为 96 %～ 10 3% ,可测定氯离子含量 w Cl-的下限为 0 .0 0 0 5 % .
Micro chlorion in Sb\-2O\-3 has been determined by standard addition method with a chlorion selective electrode. The interference of antimony in a large quantity can be eliminated by tartaric acid and citric acid complexing. The proposed method is simple and fast, with a relative standard deviation less than 7% and standard addition recovery of 96%～103%. This method can determine chlorion in a quantity as low as 0\^0005%.
出处
《广东有色金属学报》
2001年第2期154-157,共4页
Journal of Guangdong Non-Ferrous Metals
