Two raw coals from Yueliangtian and Kaili coal mines in Guizhou Province were extracted with dichloromethane separately. 摘要用二氯甲烷对贵州月亮田和凯里两种煤样进行了索氏萃取，并采用柱色谱对萃取物进行了族组分分离。
The low molecular weight compounds contained in Yueliangtian coal existed by free and absorbent forms, the low molecular weight compounds existed by co-soluble modes in Kaili coal. 在月亮田煤样中，低分子化合物多以游离态和吸附态形式存在，而在凯里煤样中，低分子化合物多以共溶态形式存在。
