The free polyethylene glycol (PEG) in polyethylene oxide-polypropylene oxide type demulsifiers is separated by extraction, determined by gravimetric analysis and identified by gas chromotography.
本文用分配萃取法测定了AP型原油破乳剂中的聚乙二醇。
The free polyethylene glycol (PEG) in polyethylene oxide-polypropylene oxide type demulsifiers is separated by extraction, determined by gravimetric analysis and identified by gas chromotography.
本文用分配萃取法测定了AP型原油破乳剂中的聚乙二醇。
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