The paper introduces a method to determine sulfur/nitrogen content in oilfield chemicals or oil products by sulfur/nitrogen elemental analyzer.
介绍了一种测定油田化学剂和石油产品中硫、氮含量的仪器分析方法。
A fluorometric spectrophotometry was used to determine the content of anionic surfactant in crude oil.
测定原油中所含的阴离子表面活性剂。
Two methods of distillation crystallization method and gas chromatography to determine the naphthalene content in coal tar oil were introduced.
介绍煤焦油中萘含量测定的两种方法：蒸馏结晶法和气相色谱法，对两种方法的优缺点及分析结果进行了对比。
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