CHNS元素分析仪测硫方法探讨  

Investigation on determination of sulphur by CHNS elemental analyzer

作　　者：邓广勇[1] 

机构地区：[1]大连石油化工公司研究院,大连116032

出　　处：《分析仪器》1999年第1期40-43,共4页Analytical Instrumentation

摘　　要：对元素分析仪测硫方法的原理、影响因素进行了探讨。对这种方法的检出限或最小检测量从理论定义出发进行了考察，并根据测定硫含量的现行国家标准实验方法 ＧＢ／Ｔ ３８７及 ＧＢ／Ｔ ３８８的精密度对元素分析仪测硫方法进行了验证，认为这种方法基本不适合测定样品中硫含量，特别是低含硫量的样品。The principle and influencing factors for determination of sulphur by CHNS elemental analyzer were investigated. The detec tion limits were studied based on theoretical definitions. The method was tested was tested in reference to the repeatability and reproducbility specified in national standard test methods GB/T 387 (Dark petroleum products-Determinadtion of Sulphur content-Tubular oven meat) and GB/T 388 (Petroleum products-Determination of Sulphur-Bomb method). The results show that the CHNS elemental analyzer is basically not suitable for the determination of sulphur in petroleum products, especially those samples with low low sulphur contents.

关 键 词：元素分析仪 硫 检测限 色谱 

分 类 号：O613.51[理学—无机化学] O657.7[理学—化学]