A thermal desorption cold-trap unit for gaschromatographic analysis of gaseous organic pollutants

Karlsson Vuokko, Schulting Frans

Research output: Book/ReportReport

Abstract

In atmospheric sampling, a preconcentration step is often necessary to raise the concentration of the pollutants above the sensitivity level of the detecting apparatus. During the work period at IMG-TNO, a thermal desorption cold-trap (TCT) unit was fitted up. The TCT unit was built (by Frans Schulting) for preparation of on solid sorbent material concentrated samples for further analysis. The optimum settings for efficient desorption as well as for cooling and heating of the cold-trap were tested. The desorption efficiency of the instrument was at least 95 %. No cold spots or dead points were observed where the sample compounds could condensate and remain. The TUT unit did neither cause any peak broadening or separation problems. The developed technique was applied to ambient air and automobile exhaust analysis.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages33
ISBN (Print)951-38-1284-7
Publication statusPublished - 1981
MoE publication typeD4 Published development or research report or study

Publication series

SeriesValtion teknillinen tutkimuskeskus. Tiedotteita
Number15
ISSN0358-5085

Fingerprint

Thermal desorption
Organic pollutants
Desorption
Vehicle Emissions
Sorbents
Sampling
Cooling
Heating
Air

Keywords

  • air pollution
  • exhaust gases
  • organic compounds
  • gas sampling
  • gas analysis
  • chromatographic analysis

Cite this

Vuokko, K., & Frans, S. (1981). A thermal desorption cold-trap unit for gaschromatographic analysis of gaseous organic pollutants. Espoo: VTT Technical Research Centre of Finland. Valtion teknillinen tutkimuskeskus. Tiedotteita, No. 15
Vuokko, Karlsson ; Frans, Schulting. / A thermal desorption cold-trap unit for gaschromatographic analysis of gaseous organic pollutants. Espoo : VTT Technical Research Centre of Finland, 1981. 33 p. (Valtion teknillinen tutkimuskeskus. Tiedotteita; No. 15).
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Vuokko, K & Frans, S 1981, A thermal desorption cold-trap unit for gaschromatographic analysis of gaseous organic pollutants. Valtion teknillinen tutkimuskeskus. Tiedotteita, no. 15, VTT Technical Research Centre of Finland, Espoo.

A thermal desorption cold-trap unit for gaschromatographic analysis of gaseous organic pollutants. / Vuokko, Karlsson; Frans, Schulting.

Espoo : VTT Technical Research Centre of Finland, 1981. 33 p. (Valtion teknillinen tutkimuskeskus. Tiedotteita; No. 15).

Research output: Book/ReportReport

TY - BOOK

T1 - A thermal desorption cold-trap unit for gaschromatographic analysis of gaseous organic pollutants

AU - Vuokko, Karlsson

AU - Frans, Schulting

PY - 1981

Y1 - 1981

N2 - In atmospheric sampling, a preconcentration step is often necessary to raise the concentration of the pollutants above the sensitivity level of the detecting apparatus. During the work period at IMG-TNO, a thermal desorption cold-trap (TCT) unit was fitted up. The TCT unit was built (by Frans Schulting) for preparation of on solid sorbent material concentrated samples for further analysis. The optimum settings for efficient desorption as well as for cooling and heating of the cold-trap were tested. The desorption efficiency of the instrument was at least 95 %. No cold spots or dead points were observed where the sample compounds could condensate and remain. The TUT unit did neither cause any peak broadening or separation problems. The developed technique was applied to ambient air and automobile exhaust analysis.

AB - In atmospheric sampling, a preconcentration step is often necessary to raise the concentration of the pollutants above the sensitivity level of the detecting apparatus. During the work period at IMG-TNO, a thermal desorption cold-trap (TCT) unit was fitted up. The TCT unit was built (by Frans Schulting) for preparation of on solid sorbent material concentrated samples for further analysis. The optimum settings for efficient desorption as well as for cooling and heating of the cold-trap were tested. The desorption efficiency of the instrument was at least 95 %. No cold spots or dead points were observed where the sample compounds could condensate and remain. The TUT unit did neither cause any peak broadening or separation problems. The developed technique was applied to ambient air and automobile exhaust analysis.

KW - air pollution

KW - exhaust gases

KW - organic compounds

KW - gas sampling

KW - gas analysis

KW - chromatographic analysis

M3 - Report

SN - 951-38-1284-7

T3 - Valtion teknillinen tutkimuskeskus. Tiedotteita

BT - A thermal desorption cold-trap unit for gaschromatographic analysis of gaseous organic pollutants

PB - VTT Technical Research Centre of Finland

CY - Espoo

ER -

Vuokko K, Frans S. A thermal desorption cold-trap unit for gaschromatographic analysis of gaseous organic pollutants. Espoo: VTT Technical Research Centre of Finland, 1981. 33 p. (Valtion teknillinen tutkimuskeskus. Tiedotteita; No. 15).