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Digitale Medien

Pulsed discharge helium ionization detector (1992)

Wentworth, W. E. ; Vasnin, S. V. ; Stearns, S. D. ; [weitere]

Springer

Chromatographia 34 (1992), S. 219-225

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Details

ISSN: 1612-1112

Schlagwort(e): Gas chroamtography ; Pulsed discharge helium ionization detector ; Emission detector ; Trace gas detection

Quelle: Springer Online Journal Archives 1860-2000

Thema: Chemie und Pharmazie

Notizen: Summary A pulsed discharge helium ionization detector (PDHID) (patent pending) for gas chromatography has been developed. This detector uses a non-radioactive pulsed high voltage discharge source for generation of electrons and pulsed collection of these electrons. We have evaluated this detector for the analysis of a wide range of chemical compounds. In this paper the analytes are passed through the discharge since the permanent gases are difficult to ionize. The initial results for the permanent gases indicate that the PDHID can be used as a universal detector of contaminant traces at detection levels on the order of 1–20 pg. The response in this mode of operation is linear over four orders of magnitude.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF02268349

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