Interface for linking an atmospheric pressure thermogravimetric

Details Interface for linking an atmospheric pressure thermogravimetric Interface for linking an atmospheric pressure thermogravimetric

1994-04-21

1995-05-16

Berman, Jack I.

Radiant energy

Ionic separation or analysis

With sample supply means

250281, H01J 4904

Patent

active

054163226

ABSTRACT:
An interface linking a mass spectrometer (MS) to a thermogravitational analyzer (TGA) for adjusting the concentration of volatiles entering the MS. The interface is preferably a capillary column provided with a dilution chamber having a inlet for gas insertion, with one end of the chamber connected to the TGA and the other to the capillary column having its other end directly attached to the MS. In a second embodiment, the interface bypasses the dilution chamber, and is made of a glass tubing protected by a stainless steel tubing, in turn surrounded by a temperature programmable sheath heater.

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M. S. Chace, "An Apparatus for Evolved Gas Analysis: Linking a Thermogravimetric Analyzer to an Ion Tray Detector (ITD)".
Finnigan MAT., Finnigan Corp., San Jose, Calif., Booklet, No. 218, 1988.
E. L. Charsley, et al., "Thermogravimetry-mass spectrometry using a simple capillary interface", American Laboratory, Booklet, Jan., 1990.

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