油田水中低碳酸的分析

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ANALYSIS ON SHORT-CHAIN CARBOXYLIC ACIDS FROM OIL-FIELD WATER

摘要: 本文高效液相色谱法(HPLC)、离子谱法(IC)、毛细管电泳法(CE)分析油田水及干酪根水热降解液中的低碳酸(C₁-C₅-无酸,C₂-C₆二无酸)及短侧链羧酸离子(RCOO^-)的含量及分布。HPLC法(DDS-C₁₈)适用于油田水;IC法(AS-1柱Dionex)适用于干酪根降解液;CE法(空管毛细柱)适用于常规浓度下的这两类样品。液样只经滤膜过滤即可直接进样分析,方法简便,重复性好。
- 油田水 /
- 干酪根水热解液 /
- 低碳酸 /
- 液相色谱法 /
- 离子色谱法 /
- 毛细管电泳法
Abstract: In this paper,high pressure liquid chromatography(HPLC),ion chromatography(IC)and capillary electrophoresis(CE)are applied to analyze the anion(RCOO^-)content and distribution of short-chain carboxylic acids(C₁-C₅ monoaiomic acid,C₂-C₆ biatomic acid)from oil-field water and the hydrothermal degraded solution of kerogens.HPLC method(ODS-C₁₈column)is suitable for oil-field water,IC method(AS-1 Dionex column)for the degraded solution of kerogens while CE method(hollow capillary column)for the both kinds of samples with conventional concentration.The liquid samples only need to be through a filter film,being analyzed by direct injection of samples.Therefore,this method is simple and convenient with fair repeatability.

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