Standard test method for aromatic types analysis of gas - oil aromatic fractions by high ionizing voltage mass spectrometry 高电离电压质谱法分析气体油芳烃馏分中芳烃类型的标准试验方法
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Standard test method for separation of representative aromatics and nonaromatics fractions of high - boiling oils by elution chromatography 洗脱色谱法分离高沸点油的典型芳烃和非芳烃馏分的标准试验方法