沉淀用盐酸溶解后，用原子吸收分光光度法(贫燃火焰)测定金属锌、锌粉和锌饼中铟、铋和铅。
After the precipitation was dissolved in hydrochloric acid, indium, bismuth and lead in zinc, zinc powder and zinc carrot were determined by atomic absorption spectrometer.
净化过程主要是加入锌粉到溶液，这样所有电位序在锌之后的元素都被置换出来并且凝固沉淀下来。
Purification is mainly done by adding zinc dust to the solution. As all the elements to be removed lie below zinc in the electrochemical series they can be precipitated by cementation.
三段控温添加锌粉除杂以及氨水与碳酸氢铵复配作为沉淀剂是技术关键。
The key technique is a 3 step addition of zinc powder for removing impurities and mixed employment of ammonia and ammonium bic...
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