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.
结果表明，分配比随振荡时间、萃取剂初始浓度的增加而增加，随着平衡水相酸度的减小而增加。
The result indicated that the assignment along with the balance aqueous phase acidity, the initial extractant concentration, and the duration of oscillation increases.
为水源的萃取、贮存以及分配做出特别的安排是很必要的。
It may be necessary to make special arrangements for water extraction, storage, and distribution.
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