Radiant energy – Ionic separation or analysis – With sample supply means
Patent
1996-07-12
1998-03-10
Berman, Jack I.
Radiant energy
Ionic separation or analysis
With sample supply means
H01J 4910
Patent
active
057264473
ABSTRACT:
The invention relates to an ionization chamber. More particularly, the invention relates to a mass spectrometer system having an ionization chamber incorporating a corona needle removable from outside the closed ionization chamber. In preferred embodiments, the corona needle is self-positioning and engages and disengages operational or safety electrical connections.
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Garcia, D.M. et al., "Opitimization of the Atmospheric Pressure Chemical Ionization Liquid Chromatography Mass Spectrometry Interface", J. Am. Soc. Mass. Spectrom, vol. 7, No. 1, 1996, pp. 59-65.
Hagiwara, T. et al., "Optimum Needle Materials of the Corona Discharge Electrode for Quantitative Analysis by Liquid Chromatography/Atmospheric Pressure Chemical Ionization-Mass Spectrometry", J. Mass Spectrom. Soc. Jpn., vol. 43, No. 6, 1995, pp. 365-371.
Takada, Y. et al., "Atmospheric Pressure Chemical Ionization Interface for Capillary Electrophoresis/Mass Spectrometry", Anal. Chem., vol. 67, No. 8, Apr. 15, 1995, pp. 1474-1476.
Doerge, D.R. et al, "Multiresidue Analysis of Sulforamides Using Liquid Chromatography with Atmospheric Pressure Chemical Ionization Mass Spectrometry", Rapid Communications in Mass Spectrom, vol. 7, No. 12, Dec. 1993, pp. 1126-1130.
Kambara, H. et al., "Ionization Characteristics of Atmospheric Pressure Ionization by Corona Discharge", Mass Spectroscopy, vol. 24, No. 3, Sep. 1976, pp. 229-236.
Aisawa Edward
Bertsch James L.
Flanagan J. Michael
Gourley Darrell L.
Robinson Val C.
Berman Jack I.
Clark Janet Pauline
Hewlett--Packard Company
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