本文围绕定量分析实验中，利用常量仪器进行半微量化学分析进行探讨。
The article focuses on quantity analysis, discussion of using constant quantity instrument to do semimicro chemical analysis experiment.
XRF应用广泛，可用于岩石、矿物、土壤、植物、沉积物、冶金、矿业、钢铁、化工产品等样品中常量和痕量的定量分析。
XRF is widely used to analy major elements and trace elements in geological rocks, minerals, soils, plants, sediments, metallurgy, mining industry, steel, chemical products, etc.
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