Analysis of internal filling gas of small-sized halogen lamps by gas chromatography

Livia Nagy, Eva Biro, Jozsef Balla

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1 Citation (Scopus)


The internal filling gas composition of small-sized (H-3) tungsten-halogen incandescent lamps was studied. An appropriate destructive sampling device was constructed and used to interface the sample source and the gas chromatograph. A high-resolution, sensitive chromatographic method was devised out for the determination of the main components in the lamp atmosphere and some of the impurities. It was found that decomposition products are formed inside the H-3 lamps during use. Their concentration as a function of the burn time can be followed by the proposed technique. The sampler interface with a Hewlett-Packard Model 5890A gas chromatograph and the isothermal elution method are described in detail. The concentration-burn time dependence gives information about the ageing process.

Original languageEnglish
Pages (from-to)213-216
Number of pages4
JournalJournal of Chromatography A
Issue numberC
Publication statusPublished - Nov 9 1990


ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Organic Chemistry

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