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Title: Sheathless interface for coupling capillary electrophoresis with mass spectrometry

A sheathless interface for coupling capillary electrophoresis (CE) with mass spectrometry is disclosed. The sheathless interface includes a separation capillary for performing CE separation and an emitter capillary for electrospray ionization. A portion of the emitter capillary is porous or, alternatively, is coated to form an electrically conductive surface. A section of the emitter capillary is disposed within the separation capillary, forming a joint. A metal tube, containing a conductive liquid, encloses the joint.
Inventors:
; ;
Issue Date:
OSTI Identifier:
1134337
Assignee:
Battelle Memorial Institute (Richland, WA) RLO
Patent Number(s):
8,754,370
Application Number:
13/788,854
Contract Number:
AC05-76RLO1830
Resource Relation:
Patent File Date: 2013 Mar 07
Research Org:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 59 BASIC BIOLOGICAL SCIENCES; 47 OTHER INSTRUMENTATION

Other works cited in this record:

Capillary electrophoresis electrospray ionization mass spectrometry interface
patent, November 1999

Modified liquid junction interface for nonaqueous capillary electrophoresis-mass spectrometry
journal, September 2000

Capillary electrophoresis–electrospray ionization-mass spectrometry interfaces: Fundamental concepts and technical developments
journal, December 2012

Isotachophoresis as an on-line concentration pretreatment technique in capillary electrophoresis
journal, January 1991

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