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

VL - 11

SP - 117

EP - 121

JO - Journal of Analytical Atomic Spectrometry

JF - Journal of Analytical Atomic Spectrometry

SN - 0267-9477

IS - 2

ER -