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首页> 外文期刊>Chromatographia >Different factors affecting the analysis of inorganic anions at low microgram per litre levels by capillary zone electrophoresis with electrokinetic injection
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Different factors affecting the analysis of inorganic anions at low microgram per litre levels by capillary zone electrophoresis with electrokinetic injection

机译：影响电动毛细管进样区毛细管电泳分析低微克每升水平无机阴离子的不同因素

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This paper discusses the determination of inorganic ions at low mu g L-1 levels by capillary zone electrophoresis (CZE) with electrokinetic injection and indirect UV detection. A 70 cm x 75 mu m i.d. capillary was used at -25 kV with an electrophoretic buffer of sodium chromate containing percentage levels of l-butanol, and cetyltrimethylammonium bromide (CTAB) as electroosmotic flow modifier (pH 8). The effects of variables such as the presence of electromigrative additives and precautions taken during the preparation of samples (handling, contamination, etc.) were studied. RSD of SO42-, NO3-, and F- peak areas were < 13 %; for Cl- they were almost 35 % when a 10 mu g L-1 standard solution was analyzed. The method was used to determine these ions in the secondary circuit of a nuclear power water plant. [References: 30]
机译：本文讨论了通过电动注射和间接UV检测通过毛细管区带电泳（CZE）测定低μgL-1水平的无机离子。 70厘米x 75微米毛细管在-25 kV下使用，其中铬酸钠电泳缓冲液含有一定浓度的1-丁醇，而十六烷基三甲基溴化铵（CTAB）作为电渗流量调节剂（pH 8）。研究了变量的影响，例如电迁移添加剂的存在以及在样品制备过程中采取的预防措施（处理，污染等）。 SO42-，NO3-和F-峰面积的RSD <13％;当分析10μgL-1标准溶液时，Cl-的含量几乎为35％。该方法用于确定核电站二次回路中的这些离子。 [参考：30]

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