高频燃烧-红外碳硫仪用于第三次全国土壤普查样品中硫的快速测定  

High-frequency Combustion-Infrared Carbon Sulfur Analyzer for Rapid Determination of Sulfur in Samples from the Third National Soil Census

作　　者：秦海娜 尚世超 QIN Haina;SHANG Shichao(The First Geological Team,Hubei Geological Bureau,Daye 435100,China)

机构地区：[1]湖北省地质局第一地质大队,湖北大冶435100

出　　处：《科技创新与生产力》2024年第11期113-115,119,共4页Sci-tech Innovation and Productivity

摘　　要：本文应用高频燃烧-红外碳硫分析仪测定土壤中国家标准物质硫的含量,提出了认知正确波谱、助燃剂添加顺序及曲线相关系数校正的方法,采用国家一级标准物质验证了方法的准确度和精密度,相对误差(RE)0.0199%~27.41%,相对标准偏差(RSD,n=6)2.26%~18.84%,Δldc在0.0001~0.1791,方法能够满足第三次全国土壤普查要求。This paper uses the high-frequency combustion-infrared carbon and sulfur analyzer,to determine the sulfur content in the national reference materials of soil,and proposes a method for correcting the correct spectra,the order of accelerant addition and the correlation coefficient of the curve.The accuracy and precision of the method are verified by national first-class reference materials,and the relative error(RE)is 0.0199%~27.41%,the relative standard deviation(RSD,n=6)is 2.26%~18.84%,and theΔldc is 0.0001~0.1791.The method can meet the requirements of the third national soil census.

关 键 词：硫 高频燃烧-红外吸收法 土壤普查 测定 

分 类 号：O657.3[理学—分析化学] S153.6[理学—化学]