Chemistry: electrical and wave energy – Apparatus – Coating – forming or etching by sputtering
Patent
1986-09-15
1987-11-24
Niebling, John F.
Chemistry: electrical and wave energy
Apparatus
Coating, forming or etching by sputtering
2041801, 250288, 422 70, 436161, 436173, 2101982, 2101983, 210656, 210658, G01N 2726, G01N 3072, B01D 1508, H01J 4900
Patent
active
047087820
ABSTRACT:
A chromatography column-electrophoresis system for directing the fluid output from the column directly to a point of use, further resolution or separation, detection and/or identification while conditioning or preparing the output for analysis by another instrument such as a mass spectrometer. The system provides for substantially simultaneous analysis in a mass spectrometer, for example, material separated initially by the column, followed by electrophoretic separation and resolution. The chromatography column utilizes horizontal or radial flow of the sample fluid through the separating medium. The column may be of a type having a quickly replaceable or disposable separating medium, or the entire column may be of a readily replaceable or disposable type. The electrophoresis apparatus is of a capillary tube type, one embodiment of which utilizes a pair of capillary tubes thereby providing for continuous operation.
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C. R. Blakley and M. L. Vestal, "Thermospray Interface for Liquid Chromatography/Mass Spectrometry", Anal. Chem. 55, 750-754 (1983).
Patrick V. Arpino et al, "Optimization of the Instrumental Parameters of a Combined Liquid Chromatograph-Mass Spectrometer, Coupled by an Interface for Direct Liquid Introduction, Journal of Chromatography 203, 117-130 (1981).
Jose A. Olivares et al, "On-Line Mass Spectrometric Detection for Capillary Zone Electrophoresis", Analytical Chemistry, vol. 59, No. 8, Apr. 15, 1987.
Andresen Brian D.
Saxena Vinit
Niebling John F.
Rajender Shyamala T.
Sepragen Corporation
Starsiak Jr. John S.
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