Dionex Corporation

Trovion Singapore Pte. Ltd., Co.

Other

Government of the United States of America, As Represented by the Secretary of Commerce

The United States of America

Trovion Singapore Pte. Ltd.

John M Riviello

Christopher A Pohl

Yan Liu

Nebojsa Avdalovic

Hamish Small

Archava Siriraks

Kannan Srinivasan

Maria A Rey

Steven B Rabin

Jacek J Jagodzinski

Victor Manuel Berber Barreto

Howard M Kingston, Jr

Omowunmi A Sadik

Gordon Wallace

Arachava Siriraks

Tianyu Yuan

A carrier for adsorption a compound, comprising a support; and a shrink-fitted monolithic body attached to and surrounding at least a portion of the support. The monolithic body can be porous and configured to bind compounds in a solution either for the isolation or depletion of the compounds from the solution.

Method for preparing monolithic coated surfaces

A coated substrate that comprises a polyolefin substrate having a functional polymer layer disposed thereon. The polyolefin substrate has a flow through pore structure with a pore size ranging from about 5 microns to about 250 microns. The functional polymer layer has a thickness ranging from about 1 micron to about 20 microns and a layer pore structure having a pore size ranging from about 1 nm to about 100 nm.

Coated poly-olefins

Electrolytic eluent recycle systems for ion chromatography using a multi-channel electrolytic ion exchange device which integrates suppression, eluent generation, and eluent recycle. The systems recycle the eluent into the analytical system without passing the eluent through the electrode chambers. Also, such systems with a channel for electrolytic removal of ions from the suppression effluent before recycle.

Electrolytic eluent recycle device, apparatus and method of use

An electrolytic CO-removal device for anion analysis of a liquid sample. The device includes a basic chamber and CO-permeable tubing in the basic chamber. Anion exchange membranes are disposed on opposite sides of the basic chamber, and electrodes are disposed outside the membranes. The device can be integral with a suppressor in an ion chromatography system and/or an aqueous stream purifier. Also, methods performed by the device.

CO2-removal device and method

The present invention relates generally to the deionization of liquids through the use of electrodeionization methods and apparatuses. The apparatuses are configured to produce purified liquids having an ion content at a level of parts-per-trillion or less, and to provide continuous regeneration of the ion exchange materials. The apparatuses may be configured according to the desired levels of deionization for anions, cations, or both. Finally, methods are presented for various uses of the claimed apparatus.

Layered electrodeionization device with discreet cation chamber

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.

Ion chromatography system using catalytic gas elimination

The present invention relates generally to the deionization of liquids through the use of electrodeionization methods and apparatuses. The apparatuses may be configured to minimize the fouling of the electrode chambers and to provide continuous regeneration of the ion exchange materials. The apparatuses may be configured according to the desired levels of deionization for anions, cations, or both. Finally, methods are presented for various uses of the apparatuses.

Electrodeionization device with protected electrodes

The present invention relates generally to the deionization of liquids through the use of electrodeionization methods and apparatuses. The apparatuses may be configured to produce purified liquids for use in analytical techniques such as ion chromatography, inductively coupled plasma mass spectrometry and atomic absorption spectroscopy, among others, and to provide continuous regeneration of the ion exchange materials. The apparatuses may be configured according to the desired levels of deionization for anions, cations, or both. Finally, methods are presented for various uses of the apparatus specifically claimed.

Method and apparatus for electrodeionization utilizing layered chambers

The present invention pertains to a method of ion chromatography wherein a specialized electrodeionization (EDI) apparatus is used for simultaneous ion suppression of cations from a flowing base containing an anion sample of interest and ion suppression of anions from a flowing acid containing a cation sample of interest. The methods described herein allow for the ion suppression of samples containing chloride, nitrate, and other electrochemically active anions, as well as sodium, potassium, and other electrochemically active cations, without causing damage to the suppressor.

Method of simultaneous anion and cation suppression in a continuous electrodeionization apparatus

A suppressed ion chromatographic apparatus using a regenerant recycle loop, comprising (a) an ion separation device, (b) a membrane suppressor, (c) a detector, (d) a container for regenerant solution, (e) a first conduit between the ion separation device and the suppressor, (f) a second conduit between the regenerant solution container and the suppressor, (g) a third conduit between the suppressor and the regenerant solution container, and (h) a regenerant solution recycle loop out of fluid communication with the detector outlet.

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Los Gatos, CA, United States of America

John M Riviello