Spin coated stationary phase microfabricated gas chromatographic columns

US11692982B2 · kind B2 · utility

Assignee

• The Government of the United States of America, as represented by the Secretary of the Navy · US

Inventors

• Robert Furstenberg · Burke, US
• Christopher Breshike · Spotsylvania, US
• Todd H. Stievater · Arlington, US
• Dmitry A. Kozak · Berwyn Heights, US
• R. Andrew McGill · Lorton, US

Key dates

• Filing date: May 8, 2020
• Grant date: Jul 4, 2023
• Expiry date: Jul 9, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2030/567
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Presented herein is a new concept of uniformly spin coating a flat surface with a stationary phase and creating a gas chromatography column by pressing a grooved lid, with micro-stamped ridges, down onto the coated substrate. The lids are molded out of commercially available rigid materials including epoxies so that when pressed onto a flat surface it will create an air tight seal. The epoxy material is rendered inert by a thin layer of gold.