Abstract: The present invention concerns an apparatus (100) for transferring a vial (200) from a first station (301) to a second station (302), comprising a stock (101) of vials in said first station, a mobile arm (1) provided with at least three gripping elements (2a-2d) movable between one another in a controlled way at least between a first and a second position, wherein the free ends of at least part of said gripping elements (2a-2d) have a magnet (5), and wherein the area of the polygon (P) having as vertexes said free ends in said first position is smaller than the area of the polygon (P) having as vertexes said free ends in said second position.

Abstract: An analysis system for analysing the constituents of a sample of material is provided. A reference supply conduit supplies a source of a first gas. A carrier supply conduit supplies a source of the first or a second gas. First and second reactors are included. A first auto-sampler provides one or more samples of material, the first auto-sampler having an inlet for receiving gas and an outlet for providing the received gas and a sample to the first reactor. A second auto-sampler provides one or more samples of material, the second auto-sampler having an inlet for receiving gas and an outlet for providing the received gas and a sample to the second reactor. A thermal conductivity detector has first and second channels for identifying the relative conductivity of the gases in each channel. A valve system controls the flow of gas from the supply conduits to the auto-samplers.

Abstract: Improved system for gas chromatography wherein use is made of a separation column and a TCD (Thermal Conductivity Detector), characterized in that the outflow from the separation column is ionized, and the ionization takes place upstream of the TCD. The ionization of the outflow from the separation column upstream of the TCD is surprisingly found in many cases to have a favorable effect on the response of the TCD. The sensitivity of the TCD is found in many cases to increase substantially. For ionization purposes use can be made of electromagnetic radiation, ionizing radiation or pyrolysis. The degree of ionization is preferably measured by means of measuring means provided for the purpose. The response of the TCD and the measurement data obtained with the measuring means are found together to give in many cases even more and better information relating to components present in the outflow from the separation column.

Abstract: The invention relates to a vaporization injector for a gas chromatograph, said injector comprising a structure (11) mounted in a detachable manner on the gas chromatograph body and including the sample introduction means, the vaporization chamber and pneumatic connections for feeding the carrier gas to the vaporization chamber and to the septum purge means, as well as pneumatic connections for evacuating the splitted sample and carrier gases.

Abstract: This invention is related to a gas chromatograph wherein more substitutable modules are foreseen, in particular injector modules and/or detector modules, as well as one embodiment in an oven module. Each module is insertable in a seat of the gas chromatograph mainframe with fast connections of its electronic and pneumatic means to corresponding outlets on said mainframe. Each module has its own heating element.

Abstract: The invention relates to a vaporization injector for a gas chromatograph, said injector comprising a structure (11) mounted in a detachable manner on the gas chromatograph body and including the sample introduction means, the vaporization chamber and pneumatic connections for feeding the carrier gas to the vaporization chamber and to the septum purge means, as well as pneumatic connections for evacuating the splitted sample and carrier gases.

Abstract: This invention is related to a gas chromatograph wherein more substitutable modules are foreseen, in particular injector modules and/or detector modules, as well as one embodiment in an oven module. Each module is insertable in a seat of the gas chromatograph mainframe with fast connections of its electronic and pneumatic means to corresponding outlets on said mainframe. Each module has its own heating element.

Abstract: This invention concerns a method and a gas chromatographic instrument in which a gas feeding low pressure condition, for instance from a cylinder, is monitored by controlling an electric parameter operating on a proportional solenoid valve placed along the gas line, and wherein an alarm to the operator is foreseen when said parameter reaches a pre-set value, so to allow a cylinder substitution before the pressure falling to zero.