-
公开(公告)号：US20220299463A1
公开(公告)日：2022-09-22
申请号：US17636601
申请日：2020-08-27
Applicant: METROHM AG
Inventor： Miguel ESPINOSA , Jesus GARCIA DE LA FUENTE
Abstract: The invention relates to a method and a device for determining at least one analyte species in an analyte solution, preferably in n analyte solutions consecutively, a computer program comprising instructions related to the program and a computer readable medium having stored such computer program. The method involves a step of amperometric detection followed by cleaning the working electrode on-line by applying at least one cyclic electric potential to the working electrode.
-
公开(公告)号：US10737855B2
公开(公告)日：2020-08-11
申请号：US14781696
申请日：2014-04-01
Applicant: METROHM AG , SIGMA-ALDRICH INTERNATIONAL GMBH
Inventor： Björn Christensen , Fabian Wahl , Michael Weber , Samuel Schindler , Lukas Wilhelm
Abstract: A closure (1) for a container comprising a connecting element (2) for connection of the closure to a container, a sealing device (3) for sealing the access to a container content and an interface (4) to an adapter having a coupling receptacle (5). The closure (1) has a delivery position and a use position. In the use position, the sealing device (3) is open. In the delivery position, the sealing device (3) is sealed in a gas and liquid fight manner.
-
公开(公告)号：US20150253296A1
公开(公告)日：2015-09-10
申请号：US14432227
申请日：2013-09-30
Applicant: METROHM AG
Inventor： Björn Christensen , Sven Hoffmann , Thomas Moritz
IPC: G01N30/74
CPC classification number: G01N30/74
Abstract: A method for detecting analytes in flow rate analysis and chromatography is described. The method comprises the following steps: a) providing one or more light sources, an optical wave guide, a container containing a specimen with one or more analytes, and one or more detectors; b) exposing the container containing the specimen to light of one or various, defined wavelengths and/or wavelength ranges; and c) detecting the resulting light waves by one or more detectors after the specimen container is exposed to light of one or various defined wavelengths and/or wavelength ranges, wherein the specimen is irradiated by transferring the light waves through an non-flexible or non-flexibly arranged optical wave guide before the light waves enter the specimen container. The non-flexible or non-flexibly arranged optical wave guide is not susceptible to interference and permits selective irradiation with one or more wavelengths sequentially or simultaneously without requiring much time.
Abstract translation: 描述了用于检测流速分析和色谱分析物的方法。 该方法包括以下步骤：a）提供一个或多个光源，光波导，含有一个或多个分析物的样本的容器和一个或多个检测器; b）将容纳样品的容器暴露于一种或多种定义的波长和/或波长范围的光; 以及c）在将样本容器暴露于一个或多个限定的波长和/或波长范围的光之后，通过一个或多个检测器检测所得到的光波，其中通过将光波转移通过非柔性或非波长范围来照射样品 在光波进入样品容器之前，设置光导波导。 非柔性或非灵活布置的光波导不易受干扰，并且允许以一个或多个波长顺序地或同时地选择性地照射而不需要太多时间。
-
公开(公告)号：US20200215488A1
公开(公告)日：2020-07-09
申请号：US16637804
申请日：2018-08-10
Applicant: METROHM AG
Inventor： Markus LÄUBLI , Wolfgang FRENZEL , Inga MARKEVICIUTE , Daniel ABDERHALDEN
Abstract: The invention relates to a dialysis cell for sample preparation for a chemical analysis method, in particular for ion chromatography. The dialysis cell comprises a donor channel and an acceptor channel extending parallel thereto. The donor channel and the acceptor channel are separated from each other by a selectively permeable dialysis membrane. In particular, an analyte that is dissolved in a donor solution in the donor channel can enter through the dialysis membrane into the acceptor solution in the acceptor channel. The acceptor channel has at least in some sections a volume that is smaller than the volume of the donor channel extending parallel thereto. Acceptor and donor channels are formed from half-cells, between which the dialysis membrane is arranged, wherein the donor channel and the acceptor channel are designed in each case as a recess in a contact surface of one of the half-cells with the dialysis membrane.
-
5.发明申请Process for the preparation of porous polymer particles based on acrylate and/or methacrylate 失效用于制备基于丙烯酸酯和/或甲基丙烯酸酯的多孔聚合物颗粒的方法公开(公告)号：US20040082749A1
公开(公告)日：2004-04-29
申请号：US10684428
申请日：2003-10-15
Applicant: Metrohm AG
Inventor： Andreas Seubert , Sandra Schuetze
IPC: C08F118/02
CPC classification number: C08J9/20 , C08J9/0023 , C08J9/142 , C08J2333/02
Abstract: The present invention relates to a process for the preparation of porous polymer particles based on acrylate and/or methacrylate, comprising the steps of provision of a reaction mixture comprising at least one monomer chosen from the group consisting of acrylate and methacrylate compounds, and at least one monoterpene as porogen and of polymerization with the formation of porous polymer particles based on acrylate and/or methacrylate. The present invention also covers the porous polymer particles based on acrylate and/or methacrylate prepared in this way.
Abstract translation: 本发明涉及一种制备基于丙烯酸酯和/或甲基丙烯酸酯的多孔聚合物颗粒的方法，包括以下步骤：提供包含至少一种选自丙烯酸酯和甲基丙烯酸酯化合物的单体的反应混合物，并且至少 一种单萜作为致孔剂和基于丙烯酸酯和/或甲基丙烯酸酯形成多孔聚合物颗粒的聚合反应。 本发明还涉及以这种方式制备的基于丙烯酸酯和/或甲基丙烯酸酯的多孔聚合物颗粒。
-
Patent Agency Ranking
公开(公告)号：US20240361284A1
公开(公告)日：2024-10-31
申请号：US18684218
申请日：2022-08-23
Applicant: Metrohm AG
Inventor： Adrian EKKELS , Alwin BÜCHLER , Gabriel LOPEZ
CPC classification number: G01N31/168 , F27B17/02 , G01N35/0099 , H05B3/62 , G01N2035/00356
Abstract: The invention relates to an oven (1, 1′) for an analytical system, in particular for a titration system and especially for a Karl Fischer titration system. The oven (1, 1′) comprises a housing, an insulation system (2a, 2a′, 2b, 2b′, 2c, 2c′) and an insert (3, 3′) for a sample vessel. The insulation system (2a, 2a′, 2b, 2b′, 2c, 2c′) is arranged at least partially around the insert (3, 3′). At least one heating element is arranged between the insulation system (2a, 2a′, 2b, 2b′, 2c, 2c′) and the insert (3, 3′) and at least partially surrounding the insert (3, 3′). The invention also relates to a titration system with such an oven (1, 1′) and a titration method.
-
公开(公告)号：US11712660B2
公开(公告)日：2023-08-01
申请号：US16637804
申请日：2018-08-10
Applicant: METROHM AG
Inventor： Markus Läubli , Wolfgang Frenzel , Inga Markeviciute , Daniel Abderhalden
IPC: B01D61/24 , B01D61/28 , B01D63/08 , B01D71/14 , B01D71/34 , B01D71/50 , G01N1/34 , G01N30/14 , G01N1/40 , G01N30/02 , A61M1/16 , A61M1/14
CPC classification number: B01D61/243 , B01D61/28 , B01D63/087 , B01D71/14 , B01D71/34 , B01D71/50 , G01N1/34 , G01N30/14 , A61M1/14 , A61M1/16 , B01D2311/26 , B01D2313/28 , B01D2313/30 , G01N2001/4016 , G01N2030/027 , G01N2030/146
Abstract: The invention relates to a dialysis cell for sample preparation for a chemical analysis method, in particular for ion chromatography. The dialysis cell comprises a donor channel and an acceptor channel extending parallel thereto. The donor channel and the acceptor channel are separated from each other by a selectively permeable dialysis membrane. In particular, an analyte that is dissolved in a donor solution in the donor channel can enter through the dialysis membrane into the acceptor solution in the acceptor channel. The acceptor channel has at least in some sections a volume that is smaller than the volume of the donor channel extending parallel thereto. Acceptor and donor channels are formed from half-cells, between which the dialysis membrane is arranged, wherein the donor channel and the acceptor channel are designed in each case as a recess in a contact surface of one of the half-cells with the dialysis membrane.
-
公开(公告)号：US20220204712A1
公开(公告)日：2022-06-30
申请号：US17601766
申请日：2020-04-07
Applicant: METROHM AG
Inventor： Andreas SEUBERT , Jonathan Sebastian TRIPP , Rudolf AESCHLIMANN , Michael OTT , Bastian BRAND
Abstract: A method for modifying a polymer carrier material for use as a stationary phase in an analytical or preparative separating method, the method comprising the steps of: providing a polymer carrier material, which is at least partly formed of aromatic hydrocarbon compounds comprising at least two vinyl or allyl substituents; producing hydroxy groups on/in the polymer carrier material by a method comprising an oxidative treatment of the polymer carrier material and a subsequent reductive or hydrolytic treatment of the reaction product; reacting the product from the previous step with a polyfunctional compound. The invention also relates to a polymer carrier material for use as a stationary phase in an analytical or preparative separating method, in particular a chromatography method, produced according to a method according to the invention.
-
公开(公告)号：US20200339322A1
公开(公告)日：2020-10-29
申请号：US16923450
申请日：2020-07-08
Applicant: METROHM AG , SIGMA-ALDRICH INTERNATIONAL GMBH
Inventor： Björn CHRISTENSEN , Fabian WAHL , Michael WEBER , Samuel SCHINDLER , Lukas WILHELM
Abstract: A closure (1) for a container comprising a connecting element (2) for connection of the closure to a container, a sealing device (3) for sealing the access to a container content and an interface (4) to an adapter having a coupling receptacle (5). The closure (1) has a delivery position and a use position. In the use position, the sealing device (3) is open. In the delivery position, the sealing device (3) is sealed in a gas and liquid tight manner.
-
公开(公告)号：US20240416258A1
公开(公告)日：2024-12-19
申请号：US18702357
申请日：2022-10-18
Applicant: Metrohm AG
Inventor： Gerhard SCHÖNENBERGER , Volker Jörg FROST
IPC: B01D11/04
Abstract: The invention relates to a method for automated liquid-liquid extraction. The method comprises the steps of: i) providing an extraction device, ii) providing a vessel with a hydrophilic phase and a hydrophobic phase, wherein at least one component to be extracted is contained in one of the two phases, iii) determining a conductivity difference ΔList between the hydrophilic phase and the hydrophobic phase using a conductivity sensor. The upper phase is extracted at at least two different speeds v1 to vn, wherein the last speed vn is slower than a previous speed vn−1, preferably slower than v1 to vn−1.
-
-
-
-
-
-
-
-
-
Search Results
13
records
(took 0.013 seconds)
