TY - JOUR
T1 - Effect of make-up gas in on-column atomic emission spectrometric detection for capillary gas chromatography
AU - Pedersen-Bjergaard, Stig
AU - Greibrokk, Tyge
PY - 1996/2
Y1 - 1996/2
N2 - 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.
AB - 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.
KW - Atomic emission spectrometric detection
KW - Capillary gas chromatography
KW - Make-up gas
KW - On-column radiofrequency plasma
KW - Selective detection of chlorine and bromine
UR - http://www.scopus.com/inward/record.url?scp=0001350974&partnerID=8YFLogxK
U2 - 10.1039/ja9961100117
DO - 10.1039/ja9961100117
M3 - Journal article
AN - SCOPUS:0001350974
SN - 0267-9477
VL - 11
SP - 117
EP - 121
JO - Journal of Analytical Atomic Spectrometry
JF - Journal of Analytical Atomic Spectrometry
IS - 2
ER -