Methods and apparatus for mass spectrometric analysis of constit

Details Methods and apparatus for mass spectrometric analysis of constit Methods and apparatus for mass spectrometric analysis of constit

1979-02-26

1980-06-24

Dixon, Harold A.

Radiant energy

Ionic separation or analysis

250288, B01D 5944

Patent

active

042096960

ABSTRACT:
Methods and apparatus for mass analysis of molecular constituents of liquids, including minor constituents, in which an electrospray technique produces electrically charged droplets which divide and evaporate to form gaseous ions of the molecular constituents. The ions are then drawn through suitable differential pumping and focusing arrangements into a mass-to-charge analyzer. A charged capillary tube extending into a small chamber couples a liquid chromatograph or other source of liquid with a mass spectrometer, the electrospray technique being applied in the small chamber as a result of a charged liquid discharged from the capillary tube.

REFERENCES:
patent: 4023398 (1977-05-01), French et al.
patent: 4121099 (1978-10-01), French et al.
patent: 4144451 (1979-03-01), Kambara
"Electrohydrodynamic Ion Source", by Mahoney et al., Journal of Applied Physics, vol. 40, No. 13, Dec. 1969, pp. 5101-5106.

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