Dosing device for gas chromatography

Details Dosing device for gas chromatography Dosing device for gas chromatography

1980-10-15

1982-11-02

Swisher, S. Clement

Measuring and testing

Sampler, sample handling, etc.

With heating or cooling

7386383, G01N 114

Patent

active

043567339

ABSTRACT:
In a dosing device for gas chromatography which includes a portion coupled to the sampling stream, a sample evaporation chamber, and a dosing plunger, the portion of the dosing plunger which carries the dosing volume is made of a highly heat conducting material and a high capacity current source is provided for heating the dosing plunger rapidly in the area of the dosing volume in order to quickly bring the dosing plunger to a high temperature such that heat will be transferred from the dosing plunger to the sample in the sample chamber and heat the sample.

REFERENCES:
patent: 3362228 (1968-01-01), Stuben
patent: 3401565 (1968-09-01), Stoll et al.
patent: 3715058 (1973-02-01), Clymans
patent: 4128008 (1978-12-01), Linenberg

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