摘要
介绍了一种用离子色谱分析油田地层水中无机离子的方法,它不仅准确、灵敏、快速、简便,而且能同时检测多种离子。文中还介绍了离子色谱的富集方法,用该方法能使阳离子的最小检测量降低三个数量级。
A methoq to determine inorganic ions in oilfield waters using ion chromatography (IC) is described.The anions were analyzed using low capacity anion exchanger and suppressor conductivity detector.The cations were analyzed using high capacity cation exchanger and coulometric detector.The technique for the concentration of alkali earth metal ions was also studied.The minimun detection limit of alkali earth metals was improved in 2-3 orders of magnitute,there upon.Six anions F^-,Cl^-,NO_2^- Br^-,NO_3^-,SO_4^(2-) and four alkali earth metal cations Mg^(2+),Ca^(2+),Sr^(2+),Ba^(2+) were separated respectively in 18 minuts,the minimum detection concentration was less than 1 ppm for each ion.Some samples of oilfield waters were analyzed by this method and the results were rather good.
出处
《油田化学》
CAS
CSCD
北大核心
1989年第3期251-255,共5页
Oilfield Chemistry
