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Patents Represented by Attorney M. Howard Silverstien

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High performance liquid chromatography injection system for the simultaneous concentration and analysis of trace components

Patent number: 5462660

Abstract: A high pressure liquid chromatography injection system with two independently controlled valves and a pump is provided which permits the simultaneous and independent concentration and analysis of trace components using two different solvent systems.

Type: Grant

Filed: April 22, 1994

Date of Patent: October 31, 1995

Assignee: The United States of America as represented by the Secretary of Agriculture

Inventors: John A. Singleton, Larry F. Stikeleather