原子吸收法测定铅锌混合精矿中的铅和锌

Determination of Lead and Zinc in Lead and Zinc Mixed Concentrates by Atomic Absorption Spectrometry

主要探讨用原子吸收分光光度计在铅、锌的次灵敏线上分别测定铅锌混合精矿中的高含量的铅、锌的方法。经过实验得知在铅的次灵敏线波长为λ=368.4 nm,锌在次灵敏线的波长λ=307.6 nm处测得的铅、锌的吸光值符合测试要求,并且测得的铅锌混合精矿中的铅、锌的含量和用容量分析法测得的铅、锌的含量在允许的误差范围内。也就是说用原子吸收分光光度计测得的铅锌混合精矿中的铅、锌的结果是准确可靠的。

A method for the determination of lead and zinc in lead and zinc mixed concentrate by atomic absorptionspectrophotometer was developed for the determination of lead and zinc in lead zinc mixed acid concentrate. In theexperiment, when the lead subsensitive line wavelength lambda was 368. 4 nm, Zn subsensitive line was 307. 6 nm,measurement of lead and zinc in the light absorption value met the test requirements, and the content of lead and zincmeasured in lead zinc mixed concentrate and the lead and zinc content measured by volumetric analysis were in theallowable error range. It proved that the results of lead and zinc in lead zinc concentrate determined by atomic absorptionspectrophotometer were accurate and reliable.