Sampler for liquid chromatography

US10473631B2 · kind B2 · utility

Assignee

• Dionex Softron GmbH · DE

Inventor

• Thomas Wachinger · Hohenzell, DE

Key dates

• Filing date: Jun 23, 2016
• Grant date: Nov 12, 2019
• Expiry date: Sep 30, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2030/202
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A sampler for liquid chromatography is described. The sampler includes an injection valve and a sample loop. The injection valve includes one waste port, two sample loop ports, and two high-pressure ports. The sample loop port includes a first loop part and a second loop part. The injection valve can be configured to have LOAD position and INJECT position. The injection valve can also be configured to have one or more additional positions such as a FULL PURGE position, a PUMP PURGE position, and a NEGATIVE PRESSURE position.