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提出了一种用单柱离子色谱法测定油田水中无机离子的新方法。在阴离子键合柱上，用０５ｍ Ｍ 苯甲酸钠和０１ｍ Ｍ柠檬酸钠作为洗脱液，可对油田水中的 Ｃｌ－ 、 Ｎ Ｏ－３ 、 Ｓ Ｏ２ －４ 进行测定；在阳离子键合柱上，用１５ｍ Ｍ 硝酸为洗脱液，可对油田水中的 Ｎ ａ＋ 和 Ｋ ＋ 进行测定；用浓度各为１５ｍ Ｍ 的草酸和乙二胺为洗脱液，可对水样中的 Ｍ ｇ２＋ 、 Ｃａ２ ＋ 、 Ｓｒ２ ＋ 、 Ｂａ２＋ 进行测定。对于油田水中含量大大高于其它无机离子的 Ｃｌ－ 和 Ｎ ａ＋ 的测定，可在适当稀释后，再进行测定。本方法具有简便、快速、准确的优点，其测定结果与油田现行使用的方法所测结果基本相符。
A new method for determination of inorganic ions in oilfield water by single column ion chromatography was proposed. On anion-bonded columns, Cl-, N O-3 and S O2 -4 in oilfield water can be measured with 05m M sodium benzoate and 01m M sodium citrate as eluent; Combined column, with 1 5m M nitric acid as eluent, oilfield water N a + and K + determination; with the concentration of 1 5m M of oxalic acid and ethylenediamine as eluent, water M g2 +, Ca2 +, Sr2 + and Ba2 + were measured. For oil and water content is much higher than other inorganic ions Cl- and N a + determination, after appropriate dilution, and then measured. The method has the advantages of being simple, rapid and accurate, and the determination result basically conforms to the measured result of the current method used in the oil field.