Pressure driven microfluidic injection for chemical separations

US9255905B1 · kind B1 · utility

Assignee

• The University of North Carolina at Chapel Hill · US

Inventors

• John Scott Mellors · Carrboro, US
• Erin Anne Redman · Carrboro, US
• John Michael Ramsey · Chapel Hill, US

Key dates

• Filing date: May 11, 2015
• Grant date: Feb 9, 2016
• Expiry date: May 11, 2035

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01L2400/0487
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Methods, systems and devices that allow independently applied pressures to a BGE reservoir and a sample reservoir for pressure-driven injection that can inject a discrete sample plug into a separation channel that does not require voltage applied to the sample reservoir and can allow for in-channel focusing methods to be used. The methods, systems and devices are particularly suitable for use with a mass spectrometer.