公开(公告)号：WO1996027790A1

公开(公告)日：1996-09-12

申请号：PCT/US1996002947

申请日：1996-02-29

Applicant: DIONEX CORPORATION

Inventor： DIONEX CORPORATION ,  SMALL, Hamish ,  RIVIELLO, John, M. ,  RABIN, Steven, B.

IPC: G01N30/02

CPC classification number: G01N30/96 ,  G01N2030/965 ,  Y10T436/25125

Abstract: In an ion chromatographic method, a sample is passed through a separation column (158) and the effluent passed to a suppressor (162) and subsequently to a conductivity cell (168) for analysis. To regenerate the suppressor, deionized water is passed from a tank (176) through the suppressor (162) while a power supply (164) electrolyzes the deionized water to form ions which regenerate the suppressor (162).

Abstract translation: 在离子色谱法中，将样品通过分离塔（158），并将流出物通入抑制剂（162），随后流过导电池（168）进行分析。 为了再生抑制器，去离子水从罐（176）通过抑制器（162），而电源（164）电解去离子水以形成再生抑制器（162）的离子。

公开(公告)号：WO1996028009A2

公开(公告)日：1996-09-19

申请号：PCT/US1996002949

申请日：1996-02-29

Applicant: DIONEX CORPORATION

Inventor： DIONEX CORPORATION ,  RABIN, Steven, B. ,  SMALL, Hamish ,  RIVIELLO, John, M.

IPC: G01N30/02 ,  G01N30/60 ,  G01N30/96

CPC classification number: G01N30/96 ,  G01N2030/965

Abstract: A method and apparatus using suppression of eluents for the analysis of anions or cations in ion chromatography. The invention relates to the intermittent use of the electric field during electrochemical suppression to minimize background noise during detection of the ionic species caused by the application of an electric field using an electrolytic membrane suppressor. Using this intermittent electrochemical suppression system allows the detection of the analyte in the absence of the electric field. The system finds particular benefit in reducing background noise created during electrochemical suppression, and in reducing the baseline interference when analyzing organic solvent-containing samples.

Abstract translation: 在离子色谱法中使用抑制洗脱液进行阴离子或阳离子分析的方法和装置。 本发明涉及在电化学抑制期间间歇地使用电场，以使由使用电解膜抑制器的电场施加引起的离子物质检测期间的背景噪声最小化。 使用这种间歇电化学抑制系统允许在没有电场的情况下检测分析物。 该系统在减少电化学抑制期间产生的背景噪声以及在分析含有机溶剂的样品时降低基线干扰方面具有特别的益处。