摘要
提出了用智能化极谱仪（JP-303型）,在HC1O4-H3 PO4-抗坏血酸体系中测定大量铟中锌的方法,锌浓度范围在0～300 μg/mL时与锌的峰电流呈正比,锌标准工作曲线线性相关系数大于0.999 8;所拟方法快速简便,不需分离铟便可直接测定0.00X％～XX％含量范围内的锌,样品加标回收率大于92％,样品多次（n=5）分析精密度满意,RSD＜6％,解决了大量铟干扰锌测定的难题,效果良好.
A method for the determination of zinc in indium in the system of prechloric acid-phosphoric acid-ascorbic acid with a model JP-303 intelligent polarograph is reported. The zinc content is proportional to the peak current in its content range of 0-300. 0μg/mL. The correlation coefficient is over 0. 999 8. The method is quick and simple, and it can directly determin zinc in the concentration range of 0.00X%- XX% without the separation of indium . The recovery is over 92% and the relative standard deviation is 〈6% with satifactory precision. The inference of a large amount of indium on the determination of zinc was solved and thus good results were obtained.
出处
《中国无机分析化学》
CAS
2014年第3期64-66,共3页
Chinese Journal of Inorganic Analytical Chemistry
关键词
铟
锌
极谱测定
indium
zinc
polarographic method
