Accession Number : AD0687619

Title :   DEPOSITS ON FLAME IONIZATION DETECTORS WITH SILICONE GUM RUBBER COLUMNS,

Corporate Author : DEFENCE STANDARDS LABS MARIBYRNONG (AUSTRALIA)

Personal Author(s) : Lakeland,B. R. ; McDermott,I. T.

Report Date : 02 SEP 1968

Pagination or Media Count : 1

Abstract : During the preparative gas chromatography of some organophosphorus esters using a silicone gum rubber column, a copious white deposit was formed on the collector electrode of the flame ionization detector over a period of 2 weeks. Although the deposits from both detector and injection port appeared similar to the naked eye, analysis by the Debye-Scherrer X-ray diffraction method and by optical emission spectroscopic techniques showed that the detector deposits were mainly silicon phosphate (2SiO2.P2O5), and the injection port samples were alpha cristobalite (SiO2).

Descriptors :   (*GAS CHROMATOGRAPHY, DEPOSITS), PHOSPHATES, SILICON DIOXIDE, GAS IONIZATION, AUSTRALIA, SILICONE PLASTICS

Subject Categories : Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE