Glow discharge detector compounds

The selectivity of the technique was measured by Feldman and Batistoni by chromatography of a silylized mixture of phenylarsonic acid, nonanoic acid, undecanoic acid and three aliphatic hydrocarbons. In each case a flame ionization detection trace was obtained simultaneously with the glow discharge detector trace. The selectivity of a given Si or As line was defined as the ratio of the peak height obtained per gram atom of carbon in the form of the interfering compound tested. 

More recent work on the determination of alkylmercury compounds has been centred on the applicability of the helium microwave glow discharge detector as a gas chromatographic detector. This has been discussed by Bache and Lisk. Grossman, Talmi92 and Quimby et al have examined the applicability of helium microwave glow discharge detectors to the detection of diphenylmercury. 

Various workers (Reamer et al, and Quimby et al ) have examined the applicability of helium in microwave glow discharge detectors for the detection of organolead compounds leaving a gas chromatographic column. A microwave emission detector (MED) was firsi described by McCormack et al. ... 

Methods involving reduction to produce hydrides followed by separation and detection by an emission-type detector have been used for organoarsenic compounds . The design of a glow discharge tube proposed earlier as an element-specific detector for gas... 

In speciation, glow discharges are excellent detectors for GC work as shown earlier. In addition to the low power and pressure ICPs they can be used successfully for element-specific detection for gas chromatography. An rf-GD-MS system has been used as a detector for GC by Olson et al. [661], The set-up should consist of a temperature-controlled transfer line of stainless steel from the exit of the GC to the inlet of the GD source. The system has been tested with tetraethyl-Pb, tetraethyl-Sn and tetrabutyl-Sn and provided useful structural information for the identification of these compounds through the observation of fragment peaks the detection limits were down to 1 pg. 

The use of a glow discharge tube as a detector for the gas chromatography of organosilicon compounds has been discussed466. 

Feldman and Batistoni have described a design of a glow discharge tube as a detector for gas chromatography of organochromium compounds. This technique is described in detail in the section on arsenic. The microwave emission detector has been demonstrated to be useful for the detection of organochromium compounds, 13, 454. 

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