| 使用毛细管离子分析仪对水中有机、无机阴离子的同时测定 |
| 摘要点击 1182 全文点击 1288 投稿时间：1999-07-02 |
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| 中文关键词 毛细管离子分析(CIA) 有机阴离子 无机阴离子 |
| 英文关键词 capillary ion analyzer (CIA),organic anions,inorganic anions. |
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| 中文摘要 |
| 研究在使用毛细管离子分析仪测定水中有机阴离子和无机阴离子的过程中 ,电压、电解质溶液的种类、浓度和 p H值以及样品本身浓度对分离效果的影响 .在优化条件下 ,即二元电解质溶液中铬酸钠和邻苯二甲酸氢钾的浓度分别为 3mmol/L和7.5mmol/L,电渗流改性剂 OFM的加入量为每 1 0 0 ml电解质 2 ml.调节测定溶液的 p H为 7.4～ 7.6时 ,可使常见的几种无机阴离子和几种小分子有机酸阴离子同时出峰 ,并且能够获得较好的分离度 . |
| 英文摘要 |
| The factors of influencing the separating results in capillary ion analysis were investigated and a two electrolyte system was described for the simultaneous separation of organic and inorganic anions by capillary ion analyzer.The results indicated that the optimized condition is when the electrolyte system contains Na2CrO4 of 3 mmol/L,O-C8H5O4K of 7.5 mmol/L,OFM of 2ml/100ml and pH was adjusted to 7.4～7.6 with 0.5mol/L NaOH solution.This method could be applied for the analyzing of environmental samples. |
