| 汽油中硫化氢和硫醇硫的极谱分析 |
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| 引用本文： | 张有序,刘溆蕃,李惠珍,郭圣君.汽油中硫化氢和硫醇硫的极谱分析[J].中国石油大学学报(自然科学版),1992(6). |
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| 作者姓名： | 张有序 刘溆蕃 李惠珍 郭圣君 |
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| 作者单位： | 石油大学石油化工学部
(张有序，刘溆蕃，李惠珍)，石油大学石油化工学部(郭圣君) |
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| 摘 要： | 用极谱分析法测定了汽油中的硫化氢和硫醇硫的含量.以甲醇、吡啶、去离子水作为混合溶剂,以0.1 mol/L KOH溶液作为支持电解质。把传统的酸性底液改为碱性底液,提高了测定的灵敏度.不经过分离可分别测定硫化氢和硫醇硫的含量,最低检出限量均为1.0×10~(-7)mol/L,回收率在95％以上.
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| 关 键 词： | 汽油 硫化氢 硫醇性硫含量 极谱分析 |
POLAROGRAPHIC ANALYSIS OF HYDROGEN SULFIDE AND MERCAPTAN SULFUR IN GASOLINE |
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| Zhang Youxu Liu Xufan Li Huizhen Guo Shengjun.POLAROGRAPHIC ANALYSIS OF HYDROGEN SULFIDE AND MERCAPTAN SULFUR IN GASOLINE[J].Journal of China University of Petroleum,1992(6). |
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| Authors: | Zhang Youxu Liu Xufan Li Huizhen Guo Shengjun |
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| Institution: | Dept. of Chemical Engineering |
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| Abstract: | Polarographic analysis is a new method used to determine the content of hydrogen sulfide and mercaptan sulfur in gasoline. Methanol, pyridine and deionized water are used as a mixed solvent, and potassium hydroxide of 0. 1mol/L concentration is taken as supporting electrolyte. The traditional acid base equilibrium is replaced by basic base equilibrium. The results show that the method has a high sensitivity. The content of hydrogen sulfide and mercaptan sulfur are determined directly without the need of separation. The lowest limit of detection is 10-7mol/L and the recovery is more than 95%. |
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| Keywords: | Gasoline: Hydrogen sulfide Mercaptan sulfur: Content: Polarographic analysis |
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