Ctc Analytics Ag

Stefan Anton Cretnik

Melchior Zumbach

Kai Heinrich Schueler

Beat Schilling

Chiew Mei Chong

Kai Heinrich Schüler

In a process for thermally desorbing a phase material (), in particular for conditioning a fiber for carrying out a solid-phase microextraction, the phase material () is heated along a temperature curve. The temperature curve of the phase material () during desorption includes at least one low point.

Process for thermally desorbing a phase material

The present application relates to a device for extracting volatile components from a sample received in a sample vessel, wherein the sample vessel is closed in a gas-tight manner. The device moreover has a discharge line and a supply line, which protrude into the sample vessel. The supply line comprises a first valve with which a flow of gas through the supply line can be throttled and/or interrupted. A suction opening of a pump is fluidically connected to the discharge line via a first fluid line, such that the pressure conditions in the device can be controlled by the capacity of the pump and by the setting of the first valve. A second fluid line fluidically connects the supply line to an output opening of the pump, such that sample vessel, supply line, discharge line and pump form a closed gas circuit. A trap element with at least one sorption material is fluidically connected to the first fluid line or the second fluid line.

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Dornach, Switzerland

Stefan Anton Cretnik