Carlo Erba Strumentazione S.p.a.

Thermoquest Italia S.p.a.

Enzo Montagner

Fausto Munari

Sorin Trestianu

Bruno Tosi

Giovanni Ostan

Giovanni Marchini

A gas chromatography oven is endowed with a shutter for the influx of air from the outside and a pair of shutters for the controlled outflow of air from the oven, the shutters being positioned on the rear wall of the oven, near the corners of the rear wall. On the upper wall of the oven, at least one injector of the sample to be analyzed and at least one detector are lodged in a removable drawer.

Gas chromatograph oven with improved regulation of the air temperature

The present invention relates to an automatic sampling apparatus for sample injection into a gas chromatographic column. In order to allow automatic injection with a non-vaporizing direct on-column injector, the apparatus includes a switch valve, an on-column injector, and a pre-column each having a passage with a diameter greater than 0.5 mm for receiving the injection syringe. The present invention also relates to a device provided with a series of small arms for driving the needle during injection, a switch valve constructed and arranged in a manner to prevent any contamination of the injector by the sample during the injection step, as well as an injection method which can be used with the apparatus and switch valve.

Automatic sample apparatus, valve and sampling method

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Pioltello, Italy

Enzo Montagner