Heated inlet system

Auger electron spectroscopy Phosphorous/nitrogen-selective alkali/flame ionisation detector Atomic force microscopy Atomic fluorescence spectrometry All-glass heated inlet system... 

Of the explosives listed in Table 4, only those such as NG with vapour pressures greater than 10 Pa at 25°C are good candidates for the direct detection of vapour by current instrumental techniques. However, vapour pressure rises markedly with temperature. In addition, consideration of the thermal stability data in Table 4 offers the possibility of heating samples containing traces of involatile explosives such as RDX or PETN to increase their vapour pressure and render them detectable. This is the basis of the common technique of combining a heated inlet system with a vapour-type detector, for example, the method of desorption from a swab on a heated stage often used with IMS or TEA systems. This approach has greatly broadened the scope of what were previously viewed as vapour-type detectors and is now standard practice such instruments are now known as particle detectors. 

Azine formation, shown in reaction (3), took place at 175-250° in the heated inlet system of a mass spectrometer but was not observed with a direct inlet system (Blythin and Waight, 1967 Nakata and Tatematsu, 1967). However, earlier it had been observed that similar azine formation occurred in sulphonylhydrazones (4) even with a direct inlet system... 

The spectrum was taken on a Hitachi-Perkin Elmer RMK-6D with electron beam energy of 70eV using the direct heated inlet system.)19... 

Heated Inlet System for Cocondensation Metal Atom Reactor... 

An article on the mass-spectrometric analysis of g.l.c. effluents has been published, together with reviews on g.l.c. in combination with mass spectroscopy and with infrared spectroscopy. Although combined g.l.c.-m.s. instruments may be purchased, it is often found necessary to adapt existing apparatus. Several papers give details of such modifications for instance, constructional details for a probe to fit the AEI MS-9 have been published, a simple heated inlet system has been described, and molecule separators have been discussed. Methods for interfacing g.l.c. and m.s. instruments have been reviewed by D. I. 

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