On line gas analyser

  The Mass Spectrometer The Selective Dual Input (SDI) instrument is an on-line time-of-flight mass spectrometer(TOFMS) providing rapid and sensitive gas analysis for environmental or processing monitoring and research applications. Analytical Modes The SDI-TOF-MS-2000 is highly attractive because it offers real-time, high time resolution, high sensitivity detection of all gas species in parallel. All masses are collected, preserving the maximum amount of information. Mass Spectra The instrument will generate single mass spectra from 0.5 seconds to many minutes duration if required. High Time Resolution Mode In this mode for instance, it is possible to request full mass spectra at time slices of as little as 100ms. Alternatively, one might request the time evolution plot of any species with a time resolution of 100ms. This type of functionality is useful for extracting the most information from short-term experiments. Process Monitor Mode Where the experiment takes places over many hours or even days, the instrument operates in a mode where selected species are plotted 'live' to a graph as a function of elapsed experiment time essentially a process monitor type operation.