sulphur print,Baumann test

Aiming at some contradictions in gasoline mercaptans determination with different analytical methods, such as doctor test and potentiometric titration, the problems, including the sensitivity of doctor test for different mercaptans, the effect of olefins on the determination of mercaptans and the relationship between doctor test and potentiometric titration in product standard, are discussed.

针对汽油产品中硫醇的分析问题进行了讨论 ,包括不同硫醇博士法含硫试验的灵敏度、烯烃对硫醇测定的影响以及产品标准中博士法含硫试验和电位滴定的关系等 ,并采用气相色谱法对催化裂化汽油中的单体硫醇进行了表征。