Pulsed voltage electrospray ion source and method for preventing analyte electrolysis
Abstract
An electrospray ion source and method of operation includes the application of pulsed voltage to prevent electrolysis of analytes with a low electrochemical potential. The electrospray ion source can include an emitter, a counter electrode, and a power supply. The emitter can include a liquid conduit, a primary working electrode having a liquid contacting surface, and a spray tip, where the liquid conduit and the working electrode are in liquid communication. The counter electrode can be proximate to, but separated from, the spray tip. The power system can supply voltage to the working electrode in the form of a pulse wave, where the pulse wave oscillates between at least an energized voltage and a relaxation voltage. The relaxation duration of the relaxation voltage can range from 1 millisecond to 35 milliseconds. The pulse duration of the energized voltage can be less than 1 millisecond and the frequency of the pulse wave can range from 30 to 800 Hz.
- Inventors:
-
- Knoxville, TN
- Clinton, TN
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1034105
- Patent Number(s):
- 8084735
- Application Number:
- 12/431,461
- Assignee:
- UT-Battelle, LLC (Oak Ridge, TN)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- DOE Contract Number:
- AC05-00OR22725
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Kertesz, Vilmos, and Van Berkel, Gary. Pulsed voltage electrospray ion source and method for preventing analyte electrolysis. United States: N. p., 2011.
Web.
Kertesz, Vilmos, & Van Berkel, Gary. Pulsed voltage electrospray ion source and method for preventing analyte electrolysis. United States.
Kertesz, Vilmos, and Van Berkel, Gary. Tue .
"Pulsed voltage electrospray ion source and method for preventing analyte electrolysis". United States. https://www.osti.gov/servlets/purl/1034105.
@article{osti_1034105,
title = {Pulsed voltage electrospray ion source and method for preventing analyte electrolysis},
author = {Kertesz, Vilmos and Van Berkel, Gary},
abstractNote = {An electrospray ion source and method of operation includes the application of pulsed voltage to prevent electrolysis of analytes with a low electrochemical potential. The electrospray ion source can include an emitter, a counter electrode, and a power supply. The emitter can include a liquid conduit, a primary working electrode having a liquid contacting surface, and a spray tip, where the liquid conduit and the working electrode are in liquid communication. The counter electrode can be proximate to, but separated from, the spray tip. The power system can supply voltage to the working electrode in the form of a pulse wave, where the pulse wave oscillates between at least an energized voltage and a relaxation voltage. The relaxation duration of the relaxation voltage can range from 1 millisecond to 35 milliseconds. The pulse duration of the energized voltage can be less than 1 millisecond and the frequency of the pulse wave can range from 30 to 800 Hz.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 27 00:00:00 EST 2011},
month = {Tue Dec 27 00:00:00 EST 2011}
}
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