Effect of make-up gas in on-column atomic emission spectrometric detection for capillary gas chromatography
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The effect of make-up gas was studied for capillary gas chromatography (GC) coupled with on-column atomic emission spectrometric detection (AED), where a 350 kHz plasma was sustained inside the end of a 0.32 mm i.d. capillary GC column. For selective detection of Cl and Br both the plasma background characteristics and elemental responses were stabilized during temperature programmed analysis when 10-15 ml min-1 of helium were added as a make-up gas. In addition, Chromatographic peaks were protected against tailing, while Cl and Br were detected at the 4 pg s-1 level.
Originalsprog | Engelsk |
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Tidsskrift | Journal of Analytical Atomic Spectrometry |
Vol/bind | 11 |
Udgave nummer | 2 |
Sider (fra-til) | 117-121 |
Antal sider | 5 |
ISSN | 0267-9477 |
DOI | |
Status | Udgivet - feb. 1996 |
ID: 231656434