A pulsed discharge ionization detector (pulsed discharge detector) is a detector for gas chromatography that utilizes a stable, low powered, pulsed DC discharge in helium as an ionization source.[1][2][3][4]
Eluants from the GC column, flowing counter to the flow of helium from the discharge zone, are ionized by photons from the helium discharge. Bias electrode(s) focus the resulting electrons toward the collector electrode, where they cause changes in the standing current which are quantified as the detector output.
- ^ W. E. Wentworth et al., "Pulsed Discharge Helium Ionization Detector ", Chromatographia, Volume 34, September/October 1992, Numbers 5-8, Pages 219-225
- ^ W. E. Wentworth et al., "Pulsed Discharge Helium Ionization Detector - Universal Detector for Inorganic and Organic Compounds at the Low Picogram Level ", Journal of Chromatography A, Volume 688, Issues 1-2, 30 December 1994, Pages 135-152
- ^ D. S. Forsyth, "Pulsed Discharge Detector: Theory and Applications", Journal of Chromatography A, Volume 1050, Issue 1, 24 September 2004, Pages 63–68
- ^ Wentworth, W. E.; Vasnin, S. V.; Stearns, S. D.; Meyer, C. J. (Sep 1992). "Pulsed discharge helium ionization detector". Chromatographia. 34 (5–8): 219–225. doi:10.1007/bf02268349. ISSN 0009-5893.