Abstract: The present invention relates to a device for measuring glow discharge spectrometry in pulsed mode, which includes an RF electric field generator in pulsed mode, a discharge lamp, an impedance matching device for transferring the electric power supplied by the generator to the discharge lamp and a mass spectrometer suitable for measuring at least one signal representative of an ionised plasma species. According to the invention, the device includes a measurement system suitable for measuring a signal representative of the impedance mismatch ?? between the generator and the discharge lamp, said measurement system including a fast acquisition system, synchronized with the pulses and suitable for supplying the impedance matching device with a signal representing the impedance mismatch ?? for at least one part of said pulses. The device enables continuous impedance adaptation.

Abstract: The present invention relates to a device for measuring glow discharge spectrometry in pulsed mode, which includes an RF electric field generator in pulsed mode, a discharge lamp, an impedance matching device for transferring the electric power supplied by the generator to the discharge lamp and a mass spectrometer suitable for measuring at least one signal representative of an ionised plasma species. According to the invention, the device includes a measurement system suitable for measuring a signal representative of the impedance mismatch ?? between the generator and the discharge lamp, said measurement system including a fast acquisition system, synchronized with the pulses and suitable for supplying the impedance matching device with a signal representing the impedance mismatch ?? for at least one part of said pulses. The device enables continuous impedance adaptation.

Abstract: The invention relates to a sample processing system for a plasma spectrometer for analysing viscous samples, and samples insoluble at room temperature. The system comprises a tray with tubes containing the sample, a heating block comprising a thermoregulation switch and means for collecting the sample from tubes. Said means are connected to a transfer tube transferring the solution that is pumped down by a peristaltic pump. The peristaltic pump is controlled by a controller box and comprises a first pump tubing of internal diameter &phgr; and a second pump tubing of internal diameter &phgr;′. A sample introduction system is fed by the peristaltic pump and contains a nebulizer and a spray chamber placed in a thermoregulated box. According to the invention, said sample processing system is thermoregulated, temperatures are variable and can be selected according to the nature of the sample to analyse.