摘要
采用高频燃烧一红外吸收法对金属铬中硫含量进行测定。确定了称样量为0.5g,高频燃烧功率为80%,助熔剂的选择及配比为纯铁0.5 g+钨锡混合助熔剂(4:1)1.2g;比较级水平为1%,分析时间为45s。该方法用于金属铬标样(GSBH 42006-92)分析,所得结果同标准值一致,标准偏差为0.00033%。
This paper introduced that using the method of high frequency combustion-infrared absorption to detennine sulpher content in Chromium.Determining the weight of sample was 0.5g;the power of high frequency combustion was 80%;the selection and ratio of the flux was pure iron 0.5g＋W-Sn（4：1）1.2g;the comparative degree level was 1%; analytical time was 45S.The method was successfully applied to determine the standard sample of chromium（GSBH 42006-92）,and the results were well agree with the normalized value,standard deviation was 0.000 33%.
出处
《铁合金》
2011年第4期46-48,共3页
Ferro-alloys
基金
国家标准制修订项目(20060842)
关键词
金属铬
硫
高频燃烧
红外吸收
chromium
sulfur
high frequency combustion
infrared absorption
