Waters Technologies Corporation

Scott A McCall

Matthew A Lauber

Theodore A Dourdeville

Jonathan L Belanger

Mathew H DeLano

Kerri M Smith

Stephen J Shiner

Michael Donegan

Catalin Doneanu

Pamela Carmen Iraneta

Paul D Rainville

Babajide O Okandeji

Dimple D Shah

Dimple Shah

Paul Rainville

Babajide Okandeji

A device for separating analytes is disclosed. The device has a sample injector, sample injection needle, sample reservoir container in communication with the sample injector, chromatography column downstream of the sample injector, and fluid conduits connecting the sample injector and the column. The interior surfaces of the fluid conduits, sample injector, sample reservoir container, and column form a flow path having wetted surfaces. A portion of the wetted surfaces of the flow path are coated with an alkylsilyl coating that is inert to at least one of the analytes. The alkylsilyl coating has the Formula I: R, R, R, R, R, and Rare each independently selected from (C-C)alkoxy, —NH(C-C)alkyl, —N((C-C)alkyl), OH, OR, and halo. Rrepresents a point of attachment to the interior surfaces of the fluidic system. At least one of R, R, R, R, R, and Ris OR. X is (C-C)alkyl, —O[(CH)O]—, —(C-C)[NH(CO)NH(C-C)]—, or —(C-C)[alkylphenyl(C-C)alkyl]-.

Use of vapor deposition coated flow paths for improved chromatography of metal interacting analytes

The present invention provides novel methods for the chromatographic analysis of glycans using high purity chromatographic materials comprising a chromatographic surface wherein the chromatographic surface comprises a hydrophobic surface group and one or more ionizable modifier and a labeling reagent which is capable of providing amphipathic and strongly basic labeling moieties to a sample to be analyzed.

Charged surface reversed phase chromatographic materials method for analysis of glycans modified with amphipathic, strongly basic moieties

A device for separating analytes is disclosed. The device has a sample injector, sample injection needle, sample reservoir container in communication with the sample injector, chromatography column downstream of the sample injector, and fluid conduits connecting the sample injector and the column. The interior surfaces of the fluid conduits, sample injector, sample reservoir container, and column form a flow path having wetted surfaces. A portion of the wetted surfaces of the flow path are coated with an alkylsilyl coating that is inert to at least one of the analytes. The alkylsilyl coating has the Formula I: R, R, R, R, R, and Rare each independently selected from (C-C)alkoxy, &#x2014;NH(C-C)alkyl, &#x2014;N((C-C)alkyl), OH, OR, and halo. Rrepresents a point of attachment to the interior surfaces of the fluidic system. At least one of R, R, R, R, R, and Ris OR. X is (C-C)alkyl, &#x2014;O[(CH)O]&#x2014;, &#x2014;(C-C)[NH(CO)NH(C-C)]&#x2014;, or &#x2014;(C-C)[alkylphenyl(C-C)alkyl]-.

Growing community of inventors

Smithfield, RI, United States of America

Scott A McCall