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91. 发明授权

US06508985B2 Continuous electrolytically regenerated packed bed suppressor for ion chromatography 有权
标题翻译：用于离子色谱的连续电解再生填充床抑制剂
公开(公告)号：US06508985B2
公开(公告)日：2003-01-21
申请号：US09877666
申请日：2001-06-08
申请人： Hamish Small , Yan Liu , John M. Riviello , Nebojsa Avdalovic , Kannan Srinivasan
发明人： Hamish Small , Yan Liu , John M. Riviello , Nebojsa Avdalovic , Kannan Srinivasan
IPC分类号： G01N3002
CPC分类号： G01N30/96 , G01N2030/965
摘要： An electrolyitic suppressor including (a) a suppressor bed of ion exchange resin, (b) an electrode chamber adjacent the suppressor, (c) a first electrode in the electrode chamber, (d) a barrier separating the suppressor bed from the first electrode chamber preventing significant liquid flow but permitting transport of ions only of the same charge as the suppressor bed resin, (e) a second electrode in electrical communication with the resin bed, and (f) a recycle conduit between the suppressor outlet port and said electrode chamber. The second electrode may be in contact with the ion exchange resin in the suppressor or located in second electrode chamber. For anion analysis, the method of using the apparatus includes: (a) flowing an aqueous liquid sample stream containing anions to be detected and cation hydroxide through the separator bed, (b) flowing the aqueous effluent from the separator bed through the flow-through suppressor, (c) flowing the effluent liquid from the suppressor past a detector, (d) recycling said liquid effluent from the detector through a cathode chamber proximate to the suppressor bed and separated by the first barrier, and (e) applying an electrical potential between the cathode and the anode. Water is electrolyzed at the anode to cause cations on the cation exchange resin to electromigrate toward the barrier and to be transported across the barrier toward the cathode while water in the cathode chamber is electrolyzed to generate hydroxide ions which combine with the transported cations to form cation hydroxide in the cathode chamber.
摘要翻译：一种电解抑制器，包括（a）离子交换树脂的抑制床，（b）与抑制器相邻的电极室，（c）电极室中的第一电极，（d）将抑制床与第一电极室防止显着的液体流动，但允许仅与抑制床树脂相同的电荷的离子的输送，（e）与树脂床电连通的第二电极，和（f）在抑制器出口和电极室之间的再循环管道。第二电极可以与抑制器中的离子交换树脂接触或位于第二电极室中。对于阴离子分析，使用该装置的方法包括：（a）使含有待检测的阴离子和阳离子氢氧化物的含水液体样品流通过分离床，（b）使来自分离器床的水性流出物流过流过（c）将来自抑制器的流出液体流过检测器，（d）将来自检测器的所述液体流出物再循环通过靠近抑制床的阴极室并被第一屏障分离，以及（e）施加电势在阴极和阳极之间。在阳极处电解水以使阳离子交换树脂上的阳离子电致化学势垒，并将阴极室内的水转移至阴极，同时电解阴极室内的水，以产生氢氧化物离子，与运送的阳离子结合形成阳离子氢氧化物在阴极室中。

92. 发明授权

US06436719B1 Displacement chemical regeneration method and apparatus 有权
标题翻译：位移化学再生方法及装置
公开(公告)号：US06436719B1
公开(公告)日：2002-08-20
申请号：US09520731
申请日：2000-03-08
申请人： Kannan Srinivasan , Christopher A. Pohl
发明人： Kannan Srinivasan , Christopher A. Pohl
IPC分类号： G01N3002
CPC分类号： G01N30/96 , G01N30/02 , G01N2030/965 , B01D15/422
摘要： A method of chromatographically separating ionic species in an aqueous electrolyte-containing eluent to form an effluent, suppressing the effluent, detecting the suppressed effluent and passing the detected effluent to a regenerant reservoir, thereby displacing the regenerant to flow to the suppressor, wherein the regenerant and effluent are of different chemical compositions.
摘要翻译：一种在含水电解质的洗脱液中色谱分离离子物质以形成流出物，抑制流出物，检测被抑制的流出物并将检测到的流出物传递到再生剂储存器的方法，从而使再生剂流向抑制器，其中再生剂流出物的化学成分不同。

93. 发明授权

US06325976B1 Continuous electrolytically regenerated packed bed suppressor for ion chromatography 失效
标题翻译：用于离子色谱的连续电解再生填充床抑制剂
公开(公告)号：US06325976B1
公开(公告)日：2001-12-04
申请号：US09031221
申请日：1998-02-26
申请人： Hamish Small , Yan Liu , John M. Riviello , Nebojsa Avdalovic , Kannan Srinivasan
发明人： Hamish Small , Yan Liu , John M. Riviello , Nebojsa Avdalovic , Kannan Srinivasan
IPC分类号： G01N3002
摘要： An electrolyitic suppressor including (a) a suppressor bed of ion exchange resin, (b) an electrode chamber adjacent the suppressor, (c) a first electrode in the electrode chamber, (d) a barrier separating the suppressor bed from the first electrode chamber preventing significant liquid flow but permitting transport of ions only of the same charge as the suppressor bed resin, (e) a second electrode in electrical communication with the resin bed, and (f) a recycle conduit between the suppressor outlet port and said electrode chamber. The second electrode may be in contact with the ion exchange resin in the suppressor or located in second electrode chamber. For anion analysis, the method of using the apparatus includes: (a) flowing an aqueous liquid sample stream containing anions to be detected and cation hydroxide through the separator bed, (b) flowing the aqueous effluent from the separator bed through the flow-through suppressor, (c) flowing the effluent liquid from the suppressor past a detector, (d) recycling said liquid effluent from the detector through a cathode chamber proximate to the suppressor bed and separated by the first barrier, and (e) applying an electrical potential between the cathode and the anode. Water is electrolyzed at the anode to cause cations on the cation exchange resin to electromigrate toward the barrier and to be transported across the barrier toward the cathode while water in the cathode chamber is electrolyzed to generate hydroxide ions which combine with the transported cations to form cation hydroxide in the cathode chamber.
摘要翻译：一种电解抑制器，包括（a）离子交换树脂的抑制床，（b）与抑制器相邻的电极室，（c）电极室中的第一电极，（d）将抑制床与第一电极室防止显着的液体流动，但允许仅与抑制床树脂相同的电荷的离子的输送，（e）与树脂床电连通的第二电极，和（f）在抑制器出口和电极室之间的再循环管道。第二电极可以与抑制器中的离子交换树脂接触或位于第二电极室中。对于阴离子分析，使用该装置的方法包括：（a）使含有待检测的阴离子和阳离子氢氧化物的含水液体样品流通过分离床，（b）使来自分离器床的水性流出物流过流过（c）将来自抑制器的流出液体流过检测器，（d）将来自检测器的所述液体流出物再循环通过靠近抑制床的阴极室并被第一屏障分离，以及（e）施加电势在阴极和阳极之间。在阳极处电解水以使阳离子交换树脂上的阳离子电致化学势垒，并将阴极室内的水转移至阴极，同时电解阴极室内的水，以产生氢氧化物离子，与运送的阳离子结合形成阳离子氢氧化物在阴极室中。

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