云南冶金2026，Vol.55Issue(3)：149-153,5.
高频燃烧—红外吸收法测定铟及铟合金中碳
Determination of Carbon in Indium and Indium Alloys by High-frequency Combustion-Infrared Absorption Method
摘要
Abstract
Carbon greatly affects mechanical and technological properties of indium and indium alloys,while no national and industrial standard is available for its determination so far.A rapid detection method using high-frequency combustion-infrared absorption was established.The influences of sample mass and dosages of tungsten,pure iron and tin fluxes on test results were investigated.The results show that under the conditions of sample mass 250 mg,tungsten flux 1.0 g,pure iron flux 0.3 g and tin flux 0.2 g,the detection limit is 0.000 2％,and the determination range is 0.000 6％～0.012％.The relative standard deviation(RSD,n=7)is less than 3.8％,and the spike recovery ranges from 95.8％to 101.3％.This method features high efficiency,accuracy and reliability,which meets the requirements for carbon determination in indium and indium alloys.关键词
高频燃烧红外吸收法/铟/铟合金/碳/助熔剂Key words
high-frequency combustion-infrared absorption method/indium/indium alloys/carbon/flux分类
化学化工引用本文复制引用
孔涛,刘金秋,李少华,李志朋,毛颖,许雷嬗,杨勇..高频燃烧—红外吸收法测定铟及铟合金中碳[J].云南冶金,2026,55(3):149-153,5.基金项目
云南省市场监督管理局科技计划项目(2022YSJK02) （2022YSJK02）
