用硅质二醇固定相测定化学驱油体系中聚丙烯酰胺  

Determination of Polyacrylamide in ChemicalFlooding Systems with Macroporous(Macropore)Silica Baded Diol Phase

作　　者：凌凤香[1] 樊立民[1] 陈立仁[1] 俞惟乐[1] 

机构地区：[1]中国科学院兰州化学物理研究所

出　　处：《分析测试技术与仪器》1996年第1期9-13,共5页Analysis and Testing Technology and Instruments

基　　金：中国科学院大型仪器功能开发基金;中国科学院兰州化学物理研究所所长基金

摘　　要：用凝胶渗透色谱法在三种不同孔径大孔硅质二醇固定相上，快速定量测定了化学驱油体系中部分水解的聚丙烯酰胺。该方法以大孔二醇硅质ＳＩ－５００、ＳＩ－１０００、ＳＩ－３０００（孔径分别为５０ｎｍ、１００ｎｍ和３００ｎｍ）为固定相，以０．２ｍｏｌ／Ｌ及０．５ｍｏｌ／ＬＮａＨ２ＰＯ４为流动相，在２１０ｎｍ处检测。表面活性剂及聚合物驱油液中所有组分对聚丙烯乳胶的测定均无干扰；最低检测限为２ｍｇ／Ｌ～４ｍｇ／Ｌ；回收率为９２％～１０８％；３ｍｉｎ之内可完成一次样品的测定。ＳＩ－５００与ＳＩ－１０００、ＳＩ－３０００固定相相比较，对实样的分离效果最佳。Detemination of partially hydrolyzed polyacrylamide(PHPA)in chemical flooding systems with three pore diameter macroporous silica based diol phases is described. The diol phases SI-500,SI- 1000,SI-3000 of pore size 50,100 and 300nm,respectively, are self synthesized in our laboratory.The mobile phases are 0.2mol/L or 0.5mol/0.5mol/LNaH2PO4and synthesized in our laboratory.The mobile phases are 0.2mol/L or 0.5mol/L NaH2PO4 and the detection is made at UV 210nm.The applications of rapidly quantitative determination of partially hydrolzed polyacrylamide(PHPA)in chemical flooding systems on different pore diameter macroporous silica diol stationary phases are described.The minimum detection concentration is found as 4mg/L and the recovery lies between 92% to 108%.Among three diol phases SI-500(pore she of 50nm)is the one to give the best resolution.A sample analysis can be achieved within 3 minutes.All additives in surfactant/polymer flooding systems show no interference.This method of determining PHPA is shown to bevery rapid and operative.

关 键 词：聚丙烯酰胺 硅质二醇 化学驱油 色谱 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程]