METHOD, DEVICE AND APPARATUS TO DETECT CHANGES OF STATE IN A CAPILLARY AND TO OPTIMIZE INJECTION CONDITIONS OF A SAMPLE INTO GAS-CHROMATOGRAPHY APPARATUSES.

摘要

This invention concerns a method, a device and an apparatus to detect changes of state in a capillary tube, in particular a gas-chromatographic column or pre-column and to consequently control the conditions under which samples are injected or introduced. Said detection is carried out through changes in the temperature of the capillary tube and/or changes in pressure or flow rate of the carrier gas. The invention further concerns a method to control gas-chromatography functions by means of a specially designed sofware, based on the above-mentioned detections on a sample apparatus.