质量平衡法测定正十六烷纯度  

Determination of n-cetane Purity by Mass Balance Method

作　　者：王庆栋 WANG Qingdong(Shandong Institute of Metallurgical Science Co.,Ltd.,Jinan 250102,China)

机构地区：[1]山东省冶金科学研究院有限公司,山东济南250102

出　　处：《山东冶金》2024年第5期44-46,共3页Shandong Metallurgy

摘　　要：质量平衡法是基于被测物质质量分数总和为100%的前提下(全部杂质未知),通过气相色谱面积归一法计算正十六烷的有机纯度,卡尔·费休库伦法测定水分含量,色谱法测定挥发组分的含量,ICP-MS测定不挥发组分的含量。扣除测得杂质后,即得正十六烷的纯度。该方法为纯度定值的基准方法、广泛应用于正十六烷等有机物的纯度定值。Mass balance method is based on the premise that the total mass fraction of the tested substance is 100%,the organic purity of n-cetane is calculated by gas chromatography area normalization method,the water content is determined by Carl Fischcullen method,the volatile component content is determined by chromatography,and the non-volatile component content is determined by ICP-MS.After deducting the measured impurities,the purity of n-cetane is obtained.This method is the standard method of purity determination,and is widely used in the purity determination of n-hexadecane and other organic compounds.

关 键 词：质量平衡法 正十六烷 纯度 

分 类 号：O623.11[理学—有机化学]