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质量平衡法测定正十六烷纯度

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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.
Determination of n-cetane Purity by Mass Balance Method
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.

mass balance methodn-cetanepurity

王庆栋

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山东省冶金科学研究院有限公司,山东 济南 250102

质量平衡法 正十六烷 纯度

2024

山东冶金
山东金属学会

山东冶金

影响因子:0.176
ISSN:1004-4620
年,卷(期):2024.46(5)