Organic carbon detector for liquid chromatography and use thereof

US11567043B2 · kind B2 · utility

Assignee

• Nanjing University · CN

Inventors

• Wentao Li · Austin, US
• Wenxiang Ji · Nanjing, CN
• Aimin Li · Nanjing, CN
• Minhui CAI · Nanjing, CN
• Yaping Wu · Nanjing, CN
• Yan LI · Lo Wu, CN
• Shi-Wai S. Cheng · Troy, US
• Ji Wu · Nanjing, CN
• Jichun Wu · Nanjing, CN
• Yanting ZUO · Nanjing, CN
• Yuze Han · Nanjing, CN

Key dates

• Filing date: Nov 21, 2019
• Grant date: Jan 31, 2023
• Expiry date: Aug 5, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2030/8854
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Disclosed is an organic carbon detector that can be used with a liquid chromatography equipment such as a size exclusion chromatography. The organic carbon detector contains a carbon oxidization subsystem and a stripping and CO2 detection subsystem arranged and detachably connected with each other in said order. The carbon oxidization subsystem contains a microfluidic agent injection module (1), an inorganic carbon removal module (2), a microfluidic ultraviolet oxidation module (3) and a vacuum pumping system (4), configured to remove inorganic carbons and oxidize organic carbons. The stripping and CO2 detection subsystem contains a stripping module (7) and a CO2 detector (12), using a carrier gas to transfer the organic carbon converted gas to the CO2 detector (12). Also disclosed is a method of using the organic carbon detector in water quality monitoring.