Abstract: A thermal modulator for gas chromatography includes an analytical capillary to be traversed by analytes and that is interposed between two gas chromatographic columns; a cooling system having a cold zone, a support element associated with the cold zone and supporting a portion of the analytical capillary at a corresponding or slightly higher temperature than the cold zone, so as to define a trapping portion of the analytes; a control system, which selectively controls the emission of pulsed current to electrically conductive elements associated with the analytical capillary to heat the trapping portion and cause the release or desorption of previously immobilized analytes; and a heating system of a portion of the analytical capillary, positioned outside of the support element and upstream of the support element, so as to generate a rapid expansion of the gas contained in the portion and facilitate the advancement of the released or desorbed analytes.

Abstract: The automatic banknote selection and delivery safe consists of an armored boxed frame in one upper zone of which is mounted a first banknote acceptance device from which departs a first banknote grasping and conveyance means paths towards a first screening station thereof with associated detection means followed by a second station for sight sensing of the banknotes collected and alternate sending to a restitution door or to a third station of withdrawal from said first path and routing towards an underlying second path of sorting in a containment storage unit divided in preselectable modular tanks with there being provided inspection means for the correct positioning of the banknotes, removable cartridge means for accumulation of banknotes and at least one door directly opening on the exterior equipped with the usual electronic selection means for access to the automatic banknote delivery.