公开(公告)号：WO2006091404A2

公开(公告)日：2006-08-31

申请号：PCT/US2006/004865

申请日：2006-02-10

Applicant: DIONEX CORPORATION ,  LIU, Yan ,  POHL, Christopher, A. ,  AVDALOVIC, Nebojsa ,  RIVIELLO, John, M. ,  SIRIRAKS, Archava

Inventor： LIU, Yan ,  POHL, Christopher, A. ,  AVDALOVIC, Nebojsa ,  RIVIELLO, John, M. ,  SIRIRAKS, Archava

IPC: G01N30/96

CPC classification number: G01N30/96 ,  G01N30/62 ,  G01N2030/965

Abstract: A liquid chromatographic system is provided including catalytically combining hydrogen and oxygen gases in the chromatography eluent stream in a catalytic gas elimination chamber, to form water and thereby reduce the gas content in the eluent stream. Also, a liquid ion chromatographic system in which the effluent from the detector is recycled to a membrane suppressor and then is mixed with a source of eluent for recycle to the chromatographic column.

Abstract translation: 提供一种液相色谱系统，其包括在催化气体消除室中的色谱洗脱液流中催化结合氢气和氧气，形成水，从而降低洗脱液流中的气体含量。 此外，液体离子色谱系统将来自检测器的流出物再循环至膜抑制剂，然后与洗脱液混合以再循环至色谱柱。

公开(公告)号：WO1996027791A1

公开(公告)日：1996-09-12

申请号：PCT/US1996002948

申请日：1996-02-29

Applicant: DIONEX CORPORATION

Inventor： DIONEX CORPORATION ,  POHL, Christopher, A. ,  SIRIRAKS, Archava ,  SLINGSBY, Rosanne, W. ,  DHILLON, Harpreet S.

IPC: G01N30/02

CPC classification number: G01N30/96 ,  G01N30/02 ,  G01N30/06 ,  G01N30/14 ,  G01N2030/146 ,  Y10T436/173076 ,  Y10T436/19 ,  Y10T436/193333 ,  Y10T436/25125 ,  Y10T436/25375 ,  Y10T436/255 ,  B01D15/36 ,  B01D15/422

Abstract: Selected polyvalent anions or cations are removed from a liquid sample stream as a pretreatment for the analysis of the liquid sample stream. A stream containing anions of interest, precipitable anions (e.g. sulfate ions) to be removed and an added displacing salt having a polyvalent cation flow through a cation exchange resin bed having precipitable exchangeable polyvalent ions (e.g. barium ions). The polyvalent cation (e.g. calcium) of the displacing salt exchanges with the cation of the resin, which reacts with the precipitable anion to form a precipitate which is retained in the bed. The anions of interest are subsequently separated and analyzed. The invention is also applicable to the removal of precipitable cations (e.g. barium ions) by reversing the roles of the anions and cations.

Abstract translation: 选择的多价阴离子或阳离子作为用于分析液体样品流的预处理从液体样品流中去除。 含有感兴趣的阴离子，待除去的可沉淀的阴离子（例如硫酸根离子）的流和通过具有可沉淀的可交换的多价离子（例如钡离子）的阳离子交换树脂床的具有多价阳离子流的添加的置换盐。 置换盐的多价阳离子（例如钙）与树脂的阳离子交换，其与可沉淀的阴离子反应以形成保留在床中的沉淀物。 随后分离和分析感兴趣的阴离子。 本发明也适用于通过逆转阴离子和阳离子的作用来除去可沉淀的阳离子（例如钡离子）。