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用ＫＩＯ＿３电位滴定法测定了胜利和孤岛减压渣油及其色谱分离组分中的硫醚硫，用管式炉定硫法测总硫量，差减得到噻吩类硫的含量。对胜利和孤岛渣油及其亚组分的测定结果表明，胜利减压渣油中的硫约有３６．６％为硫醚硫，６３．４％为噻吩硫；孤岛减压渣油的相应值分别为４０．１％和５９．９％；胜利减渣的芳香分中硫醚硫含量高于其胶质中的硫醚硫含量，且相差较大；而孤岛减渣的这两个组分中的硫醚硫含量相近。硫醚硫在这两个渣油的六组分中的分布都皇双峰型，但峰位有别。总的来说，随组分变重，硫醚硫所占比率逐渐变小，而噻吩硫的比率越来越大。
The KIO_3 potentiometric titration was used to determine the thioether sulfur content in Volatile and isolated vacuum residue and its chromatographic components. The total sulfur content was determined by the tube furnace method, and the sulfur content was obtained by the subtraction. The determination results of Victory and Gudao residue and its sub-components show that about 36.6% of sulfur in Vital vacuum residue is thio-sulfide and 63.4% is thiophene-sulfur; The values were 40.1% and 59.9%, respectively; the content of sulfide sulfur in the aromatic fraction of victory slag reduction was higher than the content of thioether sulfur in the gum, and the difference between the two groups Sub-sulfide content similar to sulfur. The distribution of thio-sulfur in the six components of these two residues is bimodal, but the peak positions are different. In general, as the components become heavier, the ratio of thioether sulfur becomes smaller and the ratio of thiophene sulfur becomes larger and larger.