高频燃烧红外吸收法测定碳化硼中总碳  

Determination of total carbon in boron carbide by high frequency combustion-infrared absorption method

作　　者：郭飞飞[1] 杨植岗[1] 王学华[1] 徐井然[1] 王朝亮[1] 黄小峰[1] 王蓬[1] 

机构地区：[1]钢铁研究总院,北京100081

出　　处：《冶金分析》2012年第7期38-40,共3页Metallurgical Analysis

基　　金：科技型中小企业技术创新无偿资助项目(10C26211103544)

摘　　要：采用高频燃烧红外吸收法,建立了测定碳化硼中总碳量的分析方法。对称样量、助熔剂进行了试验。结果表明,当称样量为0.02g、助熔剂为0.2g Fe+0.02g B4C+0.2g Fe+1.5g W时,测定效果最佳。以CaCO3为校准物质,采用本法对碳化硼样品中的碳进行测定,结果与管式炉燃烧红外吸收法的相对偏差为0.09%,小于JIS R2015-2007标准规定的允许误差0.20%,相对标准偏差为0.37%。A determination method of total carbon in boron carbide was established by high-frequency combustion infrared absorption method.Sample weight and flux used were discussed.It was found that the optimal experimental conditions were sample weight of 0.02 g and flux of 0.02g Fe ＋0.02 g B4C ＋ 0.2g Fe ＋1.5 g W.The method was used for determination of carbon in boron carbide with CaCO3 as calibration materials.The relative error of the results with those obtained by tubular furnace combustion-infrared absorption method was 0.09 % which is smaller than the allowable error 0.20 %in JIS R2015.The relative standard deviation（RSD） was 0.37 %.

关 键 词：高频燃烧 红外吸收法 碳化硼 总碳 

分 类 号：TQ128[化学工程—无机化工] O657.33[理学—分析化学]