通过柱分离系统将样品平均分配到不同类型的两个填充色谱柱，分别测定总烃及甲烷。
Samples were evenly distributed through a column separation system to two different types of packed columns to determine total hydrocarbons and methane, respectively.
烃类组分采用25%角鲨烷填充色谱柱恒温分离，以氢火焰离子化检测器(FID)检测，峰面积归一化法定量。
Hydrocarbons was separated with a packed - column coated with 25 % squalane at constant temperature, detected by using an FID, and quantified by area normalization method.
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