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HIGHLY SELECTIVE MEASURING METHOD FOR WEAK ACIDIC ION BY ION EXCLUSION SEPARATION-UV ABSORBANCE INCREASE SYSTEM, AND DEVICE THEREFOR

机译：离子排斥分离-紫外吸收增加系统对弱酸性离子的高选择性测定方法及其装置

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摘要

PPROBLEM TO BE SOLVED: To provide a measuring method for a weak acidic ion capable of increasing a UV detector response, and a device therefor. PSOLUTION: In this separation-measuring method for the weak-acidic ions, water is used as an eluate in an ion exclusion type chromatography for measuring selectively and highly sensitively the weak acidic ions in an aqueous examined sample such as environmental water, strong acidic ions are separated from the weak acidic ions (hydrogencarbonate ions, fluoride ions, aliphatic carboxylate ions, or the like) by an ion exclusion action of a weak acidic cation exchange resin column, the sample is converted thereafter into a compound (for example, potassium nitrate, potassium iodide) having a high absorbance coefficient in a wide detection wavelength area by the first and second UV absorbance increasing columns to be UV-detected, and the UV absorption detector response is thereby increased to carry out the highly sensitive detection. This separation-measuring method for the weak-acidic ions of the present invention is a device using the method. The hydrogencarbonate ions, aliphatic carboxylate ions or the like contained in the environmental water is separation-determined quantitatively, and the pollution-free (or low pollution), highly sensitive and precise measurement is provided by this manner. PCOPYRIGHT: (C)2005,JPO&NCIPI

机译：

要解决的问题：提供一种能够增加UV检测器响应的弱酸性离子的测量方法及其装置。

解决方案：在这种弱酸性离子的分离测量方法中，水被用作离子排阻色谱中的洗脱液，用于选择性地和高灵敏度地测量水性被检样品（例如环境水中）中的弱酸性离子，通过弱酸性阳离子交换树脂柱的离子排斥作用将强酸性离子与弱酸性离子（碳酸氢根离子，氟离子，脂肪族羧酸根离子等）分离，然后将样品转化为化合物（例如硝酸钾，碘化钾（硝酸钾，碘化钾）在第一和第二紫外线吸收率增加柱中在宽的检测波长区域中具有高吸收系数，以进行紫外线检测，从而增加紫外线吸收检测器的响应，以进行高灵敏度的检测。本发明的用于弱酸性离子的分离测量方法是使用该方法的装置。定量确定环境水中所含的碳酸氢根离子，脂肪族羧酸根离子等，并以此方式提供了无污染（或低污染），高度灵敏和精确的测量。

版权：（C）2005，JPO＆NCIPI 展开▼

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公开/公告号JP2005201842A

专利类型
公开/公告日2005-07-28

原文格式PDF
申请/专利权人 NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL & TECHNOLOGY;
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申请/专利号JP20040010261
发明设计人 MORI KATSUNOBU;TANAKA KAZUHIKO;TAODA HIROSHI;
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申请日2004-01-19
分类号G01N30/88;B01J35/02;C02F1/00;G01N30/12;G01N30/26;G01N30/46;G01N30/48;G01N30/74;G01N30/84;G01N31/00;G01N31/10;G01N33/15;G01N33/18;
国家 JP
入库时间 2022-08-21 22:32:45

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