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1. 发明授权

US3923460A Dual ion chromatograph using parallel columns for ionic analysis 失效
标题翻译：双离子色谱使用平行柱进行离子分析
公开(公告)号：US3923460A
公开(公告)日：1975-12-02
申请号：US52309174
申请日：1974-11-12
申请人： DOW CHEMICAL CO
发明人： PARROTT ALBERT ROSS , BENEFIEL DONALD CLARENCE
IPC分类号： G01N30/20 , G01N30/40 , G01N30/46 , G01N30/60 , G01N30/62 , G01N30/96 , G01N27/08 , G01N31/04 , G01N31/08
CPC分类号： G01N30/466 , G01N30/96 , G01N2030/202 , G01N2030/207 , G01N2030/402 , G01N2030/628 , G01N2030/965
摘要： Integrated system for the concurrent quantitative analysis, using ion exchange resin, of chromatographically separable cations and anions contained in a single measured portion of aqueous sample solution includes an eluant water reservoir, a sample injection valve, a pump delivering water from the reservoir to the sample injection valve, and thence to a first stream splitter feeding two parallel ion exchange columns. One column is charged with anion exchange resin and the other with cation exchange resin, preferably with differing bed depths but in any event selected in nature and geometry to achieve differing elution times for each ion present and being determined, and ordinarily to achieve elution of all the ions of one sign before elution of the ions of the opposite sign, e.g., all the anions before the cations. The effluent from each column is joined through a second stream splitter and the resulting single stream is directed to a conductivity cell with associated readout means. The effluent from the conductivity cell may be discarded but is ordinarily passed through clean-up resin bed means and cycled back to the eluant water reservoir. Preferably means are provided for (1) substituting columns with different resins and bed depths for specific analyses, (2) occasionally flushing the sample solution delivery system with bactericide, or (3) running known standard solution.
摘要翻译：用于使用离子交换树脂，色谱分离的阳离子和阴离子的单次测量部分的水样品溶液的同时定量分析的集成系统包括洗脱水储存器，样品注射阀，将水从储存器输送到样品喷射阀，然后进入到两个平行离子交换柱的第一流分离器。一列装有阴离子交换树脂，另一列装有阳离子交换树脂，优选具有不同的床深度，但是在任何情况下，在本质上和几何形状中选择，以获得存在和确定的每个离子的不同洗脱时间，并且通常实现全部洗脱洗脱相反符号离子前的一个符号的离子，例如阳离子前的所有阴离子。来自每列的流出物通过第二流分离器连接，并将所得单流引导到具有相关读出装置的电导池。可以丢弃来自导电池的流出物，但通常通过清理树脂床装置并循环回到洗脱水储存器。优选提供（1）用不同树脂和床层深度替代柱进行特定分析的方法，（2）偶尔用杀菌剂冲洗样品溶液输送系统，或（3）运行已知的标准溶液。

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