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Title: Combined electrophoretic-separation and electrospray method and system

Abstract

A system and method for analyzing molecular constituents of a composition sample includes: forming a solution of the sample, separating the solution by capillary zone electrophoresis into an eluent of constituents longitudinally separated according to their relative electrophoretic mobilities, electrospraying the eluent to form a charged spray in which the molecular constituents have a temporal distribution; and detecting or collecting the separated constituents in accordance with the temporal distribution in the spray. A first high-voltage (e.g., 5-100 KVDC) is applied to the solution. The spray is charged by applying a second high voltage (e.g., .+-.2-8 KVDC) between the eluent at the capillary exit and a cathode spaced in front of the exit. A complete electrical circuit is formed by a conductor which directly contacts the eluent at the capillary exit.

Inventors:
 [1];  [2]
  1. Richland, WA
  2. Kennewick, WA
Issue Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
OSTI Identifier:
867018
Patent Number(s):
4842701
Assignee:
Battelle Memorial Institute (Richland, WA)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
combined; electrophoretic-separation; electrospray; method; analyzing; molecular; constituents; composition; sample; forming; solution; separating; capillary; zone; electrophoresis; eluent; longitudinally; separated; according; relative; electrophoretic; mobilities; electrospraying; form; charged; spray; temporal; distribution; detecting; collecting; accordance; high-voltage; 5-100; kvdc; applied; applying; voltage; 2-8; exit; cathode; spaced; front; complete; electrical; circuit; formed; conductor; directly; contacts; zone electrophoresis; temporal distribution; molecular constituents; electrical circuit; capillary zone; capillary exit; relative electrophoretic; separated according; separated constituents; charged spray; composition sample; complete electrical; cathode spaced; analyzing molecular; electrophoretic mobilities; longitudinally separated; constituents longitudinally; directly contacts; /204/250/436/

Citation Formats

Smith, Richard D, and Olivares, Jose A. Combined electrophoretic-separation and electrospray method and system. United States: N. p., 1989. Web.
Smith, Richard D, & Olivares, Jose A. Combined electrophoretic-separation and electrospray method and system. United States.
Smith, Richard D, and Olivares, Jose A. Sun . "Combined electrophoretic-separation and electrospray method and system". United States. https://www.osti.gov/servlets/purl/867018.
@article{osti_867018,
title = {Combined electrophoretic-separation and electrospray method and system},
author = {Smith, Richard D and Olivares, Jose A},
abstractNote = {A system and method for analyzing molecular constituents of a composition sample includes: forming a solution of the sample, separating the solution by capillary zone electrophoresis into an eluent of constituents longitudinally separated according to their relative electrophoretic mobilities, electrospraying the eluent to form a charged spray in which the molecular constituents have a temporal distribution; and detecting or collecting the separated constituents in accordance with the temporal distribution in the spray. A first high-voltage (e.g., 5-100 KVDC) is applied to the solution. The spray is charged by applying a second high voltage (e.g., .+-.2-8 KVDC) between the eluent at the capillary exit and a cathode spaced in front of the exit. A complete electrical circuit is formed by a conductor which directly contacts the eluent at the capillary exit.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {1}
}