Abstract: A method for reducing the carbon corrosion in a fuel cell stack of a fuel cell system includes the steps of detecting a corrosion value which is representative of the extent of the carbon corrosion probably occurring in the fuel cell stack during an inactive phase of the fuel cell stack, and initiating a protective measure for reducing the carbon corrosion in the fuel cell stack on the basis of the corrosion value.

Abstract: A method for operating a motor vehicle includes the steps of registering a maximum dynamics requirement and adapting the idling operating mode of a fuel cell system of the motor vehicle on the basis of the maximum dynamics requirement. In the first maximum dynamics requirement, lower dynamics are required than in the second maximum dynamics requirement. In the first maximum dynamics requirement, the fuel cell system is operated in a first idling operating mode. In the second maximum dynamics requirement the fuel cell system is operated in a second idling operating mode. The fuel cell system is operated more efficiently in the first idling operating mode than in the second idling operating mode.

Abstract: A method conditions a fuel cell stack of a fuel cell system during a usage operation of the fuel cell system. The method determines that a conditioning of the fuel cell stack is to be carried out for increasing an electrical power provided by the fuel cell stack during usage operation. In addition, the method adjusts at least one operating parameter of the fuel cell system in order to increase a current flow through the fuel cell stack for conditioning the fuel cell stack during usage operation.

Abstract: A method for reducing the carbon corrosion in a fuel cell stack of a fuel cell system includes the steps of detecting a corrosion value which is representative of the extent of the carbon corrosion probably occurring in the fuel cell stack during an inactive phase of the fuel cell stack, and initiating a protective measure for reducing the carbon corrosion in the fuel cell stack on the basis of the corrosion value.

Abstract: A method for preparing a sample for chromatographic separation processes, in which a sample vessel is partially filled with a substance to be examined and is closed, is described. The substance to be examined is subjected to a thermo-chemical reaction in which at least one sample component is converted into another substance, and in which by use of a removing device samples are removed from the sample vessel for analytical examination. Also, the sample vessel forms a cavity, into which the substance to be examined is introduced as a core and a heating section for indirect heat transfer is applied along the filling of substance to be examined.

Abstract: A method for operating a motor vehicle includes the steps of registering a maximum dynamics requirement and adapting the idling operating mode of a fuel cell system of the motor vehicle on the basis of the maximum dynamics requirement. In the first maximum dynamics requirement, lower dynamics are required than in the second maximum dynamics requirement. In the first maximum dynamics requirement, the fuel cell system is operated in a first idling operating mode. In the second maximum dynamics requirement the fuel cell system is operated in a second idling operating mode. The fuel cell system is operated more efficiently in the first idling operating mode than in the second idling operating mode.

Abstract: A method conditions a fuel cell stack of a fuel cell system during a usage operation of the fuel cell system. The method determines that a conditioning of the fuel cell stack is to be carried out for increasing an electrical power provided by the fuel cell stack during usage operation. In addition, the method adjusts at least one operating parameter of the fuel cell system in order to increase a current flow through the fuel cell stack for conditioning the fuel cell stack during usage operation.

Abstract: A method for preparing a sample for chromatographic separation processes, in which a sample vessel is partially filled with a substance to be examined and is closed, is described. The substance to be examined is subjected to a thermo-chemical reaction in which at least one sample component is converted into another substance, and in which by use of a removing device samples are removed from the sample vessel for analytical examination. Also, the sample vessel forms a cavity, into which the substance to be examined is introduced as a core and a heating section for indirect heat transfer is applied along the filling of substance to be examined.

Abstract: The invention relates to a method for preparing a sample for chromatographic separation processes, in which a sample vessel (1) is partially filled with a substance to be examined and is closed, the substance to be examined is subjected to a thermo-chemical reaction in which at least one sample component is converted into another substance, and in which by means of a removing device samples are removed from the sample vessel (1) for analytical examination, characterized in that the sample vessel (1) forms a cavity, into which the substance to be examined is introduced as a core and a heating section for indirect heat transfer is applied along the filling of substance to be examined.

Abstract: The invention relates to a system for carrying out a sample preparation for an analysis apparatus, in particular a chromatograph, comprising a sample vessel (1), which can be closed by a self-sealing cover and has a sample compartment (31) for receiving a substance to be examined, further comprising a holder, which has a heating wire coil (13) and into which the sample vessel (1) with the sample compartment (31) can be inserted for heating the substance to be examined, and further comprising a power supply for the heating wire coil (13) which is based on a constant current source and is controlled proportionally by pulse width modulation.

Abstract: The invention relates to a method for preparing a sample for chromatographic separation processes, in which a sample vessel (1) is partially filled with a substance to be examined and is closed, the substance to be examined is subjected to a thermo-chemical reaction in which at least one sample component is converted into another substance, and in which by means of a removing device samples are removed from the sample vessel (1) for analytical examination, characterised in that the sample vessel (1) forms a cavity, into which the substance to be examined is introduced as a core and a heating section for indirect heat transfer is applied along the filling of substance to be examined.

Abstract: The invention relates to a system for carrying out a sample preparation for an analysis apparatus, in particular a chromatograph, comprising a sample vessel (1), which can be closed by a self-sealing cover and has a sample compartment (31) for receiving a substance to be examined, further comprising a holder, which has a heating wire coil (13) and into which the sample vessel (1) with the sample compartment (31) can be inserted for heating the substance to be examined, and further comprising a power supply for the heating wire coil (13) which is based on a constant current source and is controlled proportionally by pulse width modulation.

Abstract: The invention relates to a sorbent collector material based on polyorganosiloxane for the microextraction of substances to be analysed, the collector material having an open-cell foam structure, and to a collector and a liner which include this collector material.

Abstract: A coil support suitable for supporting a coil in a condensing unit includes a body and a protrusion extending from the body. The protrusion is configured to limit movement of the coil in at least one direction.