Community Research and Development Information Service - CORDIS

Abstract

This report details the experimental protocol and describes the results of the second intercomparison of volatile organic compounds (VOC) measurements conducted in 1994. The fact that the majority of the VOCs selected were hydrocarbons (C2 to C9) implies that the most commonly used methodology was on-line sampling with cryo-gas chromatography with flame ionization detector (cryo-GC-FID) analysis and consequently, this intercomparison could offer a good state of the art picture of this technique as a routine measurement method. After the evaluation of the results from this exercise the following main conclusions can be pointed out:

- The current situation is questioning the use of gravimetrically prepared gas mixture as primary standards for calibration purposes, as well as the stability of gas samples collected in canisters;
- The method of calibration is expected to be of greater importance for low concentration levels at the range of ambient air. Special attention should be directed to calibration factors determined at high concentrations when applied to much lower concentration levels. It is also expected that peak integration and processing errors are of greater importance for lower concentrations;
- Few trends with instrumentation or techniques have been observed.
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Additional information

Authors: PÉREZ BALLESTA P, JRC Ispra (IT);DE SAEGER E, JRC Ispra (IT);FIELD R A, AEA Technology, Abingdon (GB)
Bibliographic Reference: EUR 17757 EN (1998) 77pp., free of charge
Availability: Available from the Public Relations and Publications Unit, JRC Ispra, I-21020 Ispra (IT), Fax: +39-0332-785818
Record Number: 199810876 / Last updated on: 1998-08-04
Category: PUBLICATION
Original language: en
Available languages: en