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New on-line concentrator for LC-GC: Analysis of PAHs with LC-GC

✍ Scribed by Heo, Gwi Suk ;Suh, Jung Kee

Publisher
John Wiley and Sons
Year
1990
Tongue
English
Weight
438 KB
Volume
13
Category
Article
ISSN
0935-6304

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✦ Synopsis

Abstract

A new, versatile, and low cost on‐line LC‐GC interface has been devloped for the fast and reliable introduction of large volume samples into a cappillary GC column without using the conventional retention gap. PAHs in soot were analyzed by on‐line normal phase HPLC‐capillary GC. A glass, vial‐shaped on‐line concentrator provides a zone for solvent evaporation and sample concentration. Large volumes of HPLC eluate can be concentrated with the on‐line concentrator and then transferred directly into the cappillary column. Trace levels (< 10 ppb) of PAH compounds can be efficiently concentrated with the on‐line concentrator and determined without loss or contamination.

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