公开(公告)号：US06741084B2

公开(公告)日：2004-05-25

申请号：US10010542

申请日：2001-10-26

申请人： David Allen Pane ,  John R. Stillian ,  Nick R. Jancewicz ,  Gastón de Los Reyes ,  Wisam Yacteen

发明人： David Allen Pane ,  John R. Stillian ,  Nick R. Jancewicz ,  Gastón de Los Reyes ,  Wisam Yacteen

IPC分类号： G01R2708

CPC分类号： G01N33/1846 ,  G01N27/06 ,  G01N31/005 ,  Y10T436/235

摘要： The present invention provides a device useful in the photo-oxidation of a sample liquid and in the measurement of the oxidized carbon content thereof. The device includes a cell, at least two elongate probes, and a temperature sensitive element. The cell includes a rigid light-transmissive outer wail that encloses a continuous predetermined internal volume The elongate probes—providing collectively the ability to measure temperature and conductivity—penetrate through the rigid outer wall and extend substantially into the cell's internal volume. At least one of the elongate probes is hollow at least partially along its length, the temperature sensitive element being positioned within this bore. A methodology involving the use of the device is also described.

摘要翻译： 本发明提供了一种可用于样品液体的光氧化和测量其氧化碳含量的装置。 该装置包括电池，至少两个细长探针和温度敏感元件。 细胞包括包围连续的预定内部体积的刚性光透射外壁。细长探针 - 统一提供测量温度和导电性的能力 - 穿透刚性外壁并基本上延伸进入细胞的内部体积。 细长探针中的至少一个至少部分地沿着其长度是中空的，温度敏感元件位于该孔内。 还描述了涉及使用该装置的方法。

公开(公告)号：US5518622A

公开(公告)日：1996-05-21

申请号：US319370

申请日：1994-10-06

申请人： John R. Stillian ,  Archava Siriraks

发明人： John R. Stillian ,  Archava Siriraks

IPC分类号： G01N30/02 ,  G01N30/06 ,  G01N30/60 ,  G01N30/96 ,  B01D15/08

CPC分类号： G01N30/96 ,  G01N2030/965 ,  G01N30/02 ,  G01N30/06

摘要： A system for pretreating sample streams including a concentrated matrix compound to neutralize the compound. The system includes an electrochemical membrane device in which sample flows through a sample flow channel of the device separated from a matrix ion receiving flow channel by an ion exchange membrane preferentially permeable to ions of the opposite charge to the ions to be analyzed. The ionic species in the thus-pretreated sample are directed to an analytical system such as an ion chromatograph.

摘要翻译： 一种用于预处理样品流的系统，包括浓缩的基质化合物以中和该化合物。 该系统包括电化学膜装置，其中样品流过穿过基质离子接收流动通道的样品流动通道，该离子交换膜可以优先渗透到待分析离子的相反电荷的离子。 将这样预处理的样品中的离子物质导向分析系统，例如离子色谱仪。

公开(公告)号：US5352360A

公开(公告)日：1994-10-04

申请号：US86560

申请日：1993-07-01

申请人： John R. Stillian ,  Victor M. Barreto ,  Keith A. Friedman ,  Steven B. Rabin ,  Mahmood Toofan

发明人： John R. Stillian ,  Victor M. Barreto ,  Keith A. Friedman ,  Steven B. Rabin ,  Mahmood Toofan

IPC分类号： G01N30/02 ,  G01N30/60 ,  G01N30/96 ,  B01D15/08

CPC分类号： G01N30/96 ,  G01N2030/965 ,  G01N30/02

摘要： A method of streamlining and lowering the cost of operation of ion chromatography as well as improving detection limits is disclosed. The apparatus includes chromatographic separating means through which a sample is eluted in an eluent solution including an electrolyte. The apparatus includes suppressor means having a chromatography effluent compartment means separated from a detector effluent compartment means by an ion exchange membrane, forming a chromatography effluent flow channel and a detector effluent channel, respectively. Electrode means are disposed in communication with both flow channels for passing an electric current transverse to the solution that is passing through them. The chromatography effluent flows through the chromatography effluent flow channel of the suppressor and through detector means which detects resolved ionic species therein. The effluent from the detector means is then recycled through the detector effluent flow channel and forms a sump for electrolyte ions passing across the chromatography effluent as well as supplying the water for the electrolysis reaction generating acid (or base) for suppression.

摘要翻译： 公开了精简和降低离子色谱操作成本以及提高检测限的方法。 该装置包括色谱分离装置，样品在包括电解质的洗脱溶液中洗脱。 该装置包括抑制装置，其具有分别通过离子交换膜从检测器流出物室装置分离的色谱流出物隔室装置，分别形成色谱流出物流动通道和检测器流出通道。 电极装置设置成与两个流动通道连通，以使横向于通过它们的溶液的电流通过。 色谱流出液流过抑制器的色谱流出物流动通道，并通过检测其中的分离离子物质的检测器装置。 来自检测器装置的流出物然后通过检测器流出物流动通道再循环，并形成用于通过色谱流出物的电解质离子的池，以及供应用于产生酸（或碱）的电解反应用于抑制的水。

公开(公告)号：US5597481A

公开(公告)日：1997-01-28

申请号：US460467

申请日：1995-06-02

申请人： John R. Stillian ,  Archava Siriraks

发明人： John R. Stillian ,  Archava Siriraks

IPC分类号： G01N30/02 ,  G01N30/06 ,  G01N30/60 ,  G01N30/96 ,  B01D15/08

CPC分类号： G01N30/96 ,  G01N2030/965 ,  G01N30/02 ,  G01N30/06

摘要： A system for pretreating sample streams including a concentrated matrix compound to neutralize the compound. The system includes an electrochemical membrane device in which sample flows through a sample flow channel of the device separated from a matrix ion receiving flow channel by an ion exchange membrane preferentially permeable to ions of the opposite charge to the ions to be analyzed. The ionic species in the thus-pretreated sample are directed to an analytical system such as an ion chromatograph.

摘要翻译： 一种用于预处理样品流的系统，包括浓缩的基质化合物以中和该化合物。 该系统包括电化学膜装置，其中样品流过穿过基质离子接收流动通道的样品流动通道，该离子交换膜可以优先渗透到待分析离子的相反电荷的离子。 将这样预处理的样品中的离子物质导向分析系统，例如离子色谱仪。

公开(公告)号：US5045204A

公开(公告)日：1991-09-03

申请号：US479446

申请日：1990-02-13

申请人： Purnendu K. Dasgupta ,  Douglas L. Strong ,  John R. Stillian ,  Keith A. Friedman

发明人： Purnendu K. Dasgupta ,  Douglas L. Strong ,  John R. Stillian ,  Keith A. Friedman

IPC分类号： G01N30/26 ,  B01D19/00 ,  B01D61/44 ,  B01D61/48 ,  G01N30/02 ,  G01N30/34 ,  G01N30/60 ,  G01N30/96

CPC分类号： B01D19/0031 ,  B01D61/44 ,  B01D61/48 ,  G01N30/34 ,  G01N2030/965 ,  G01N30/02

摘要： A method and apparatus has been provided for generating a high purity aqueous stream with selected ionic species--either cation (e.g. sodium) or anion (e.g. sulfate) and suitable for use as a chromatography eluent. In one form, an eluent generating means defines a source channel and a product channel separated by a permselective ion exchange membrane including exchangeable ions of the same charge as the selected ionic species. The membrane allows passage of ions of the same charge as the ionic species but is resistant to transmembrane passage of ions of opposite charge. Means is provided for applying an electrical potential between the source channel and product channel. In another form of the device, two different membranes define two source channels, a positively charged, anode source channel and a negatively charged cathode source channel, and a product channel. The effluent from the product channel is directed to the chromatographic separation means. Means is also provided for supplying liquid sample to the chromatographic separation means.

公开(公告)号：US4999098A

公开(公告)日：1991-03-12

申请号：US837330

申请日：1986-03-03

申请人： Christopher Pohl ,  Roseanne W. Slingsby ,  John R. Stillian ,  Ryszard Gajek

发明人： Christopher Pohl ,  Roseanne W. Slingsby ,  John R. Stillian ,  Ryszard Gajek

IPC分类号： G01N30/38 ,  G01N30/60 ,  G01N30/84 ,  G01N30/96

CPC分类号： G01N30/84 ,  G01N30/96 ,  G01N2030/387 ,  G01N2030/965

摘要： A suppressor for use in ion chromatography including at least an effluent flow channel separated by a charged membrane from a suppressor flow channel. A screen of the same charge as the membrane is placed in at least the effluent flow channel. Preferably, a similar screen is placed in the regenerant flow channel. The screen increases the dynamic capacity of the membrane suppressor.

摘要翻译： 用于离子色谱法的抑制剂，包括至少一个通过带电膜从抑制流道分离出的流出物流动通道。 至少将污染物流通道放置与膜相同电荷的屏幕。 优选地，将类似的屏幕放置在再生剂流动通道中。 屏幕增加了膜抑制器的动态容量。

公开(公告)号：US5248426A

公开(公告)日：1993-09-28

申请号：US968246

申请日：1992-10-29

申请人： John R. Stillian ,  Victor M. Barreto ,  Keith A. Friedman ,  Steven B. Rabin ,  Mahmood Toofan

发明人： John R. Stillian ,  Victor M. Barreto ,  Keith A. Friedman ,  Steven B. Rabin ,  Mahmood Toofan

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

CPC分类号： G01N30/96 ,  G01N2030/965 ,  G01N30/02

摘要： A method of streamlining and lowering the cost of operation of ion chromatography as well as improving detection limits is disclosed. The apparatus includes chromatographic separating means through which a sample is eluted in an eluent solution including an electrolyte. The apparatus includes suppressor means having a chromatography effluent compartment means separated from a detector effluent compartment means by an ion exchange membrane, forming a chromatography effluent flow channel and a detector effluent channel, respectively. Electrode means are disposed in communication with both flow channels for passing an electric current transverse to the solution that is passing through them. The chromatography effluent flows through the chromatography effluent flow channel of the suppressor and through detector means which detects resolved ionic species therein. The effluent from the detector means is then recycled through the detector effluent flow channel and forms a sump for electrolyte ions passing across the chromatography effluent as well as supplying the water for the electrolysis reaction generating acid (or base) for suppression.

摘要翻译： 公开了精简和降低离子色谱操作成本以及提高检测限的方法。 该装置包括色谱分离装置，样品在包括电解质的洗脱溶液中洗脱。 该装置包括抑制装置，其具有分别通过离子交换膜从检测器流出物室装置分离的色谱流出物隔室装置，分别形成色谱流出物流动通道和检测器流出通道。 电极装置设置成与两个流动通道连通，以使横向于通过它们的溶液的电流通过。 色谱流出液流过抑制器的色谱流出物流动通道，并通过检测其中的分离离子物质的检测器装置。 来自检测器装置的流出物然后通过检测器流出物流动通道再循环，并形成用于通过色谱流出物的电解质离子的池，以及供应用于产生酸（或碱）的电解反应用于抑制的水。