A system for performing spectrofluorometry of a fluorophore sample is provided. First and second charge storing regions are disposed at sides of the core block. A control system is mounted to the panel for controlling operation of the switching devices. The method uses standard microelectronic processing techniques. A retaining web, fastenable to the tightening strap, is located on the bracket in such a way that the retaining web can be moved to a fastening position by performing a swivel motion with the bracket being supported on the vehicle part via the support surface. The foam raw material comprises expanded graphite and an inorganic compound hydrate.