Possibilities of analyzing indoor air by gas chromatography using retention index monitoring

Maija-Liisa Mattinen, Kristina Saarela, Erik Sandell

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

Abstract

Indoor air samples are usually collected in Tenax TA™ adsorbent tubes and analyzed using a thermal desorption cold trap injector combined with GC/MS‐ and/or GC/FID‐ techniques. Often only selected sample tubes can be analyzed using rather expensive GC/MS equipment for compound identification. The identification and quantitation method described here employs a two‐channel high resolution gas Chromatograph equipped with a thermal desorption cold trap injector and two flame ionization detectors. Separation of sample compounds is done using two capillary columns of different polarity stationary phases. Identifications are made by two‐channel retention index monitoring (RIM) using a pattern recognition software for automatic assignment of selected n‐alkane standards from among sample peaks.

RIM is suitable for analyzing indoor air samples when (I) preliminary results are needed immediately, (II) the amount of the different sample compounds are on a same concentration level, and (III) tens of similar samples from different sources are to be analyzed. In addition (IV) the method is easy to use in routine laboratory practice.

Original languageEnglish
Pages (from-to)133 - 142
Number of pages10
JournalToxicological and Environmental Chemistry
Volume40
Issue number1 - 4
DOIs
Publication statusPublished - 1993
MoE publication typeA1 Journal article-refereed

Fingerprint

Thermal desorption
indoor air
Gas chromatography
Gas Chromatography
desorption
gas chromatography
Hot Temperature
Air
Flame Ionization
Monitoring
pattern recognition
monitoring
Adsorbents
Pattern recognition
Ionization
ionization
Software
Gases
Detectors
software

Cite this

Mattinen, Maija-Liisa ; Saarela, Kristina ; Sandell, Erik. / Possibilities of analyzing indoor air by gas chromatography using retention index monitoring. In: Toxicological and Environmental Chemistry. 1993 ; Vol. 40, No. 1 - 4. pp. 133 - 142.
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Possibilities of analyzing indoor air by gas chromatography using retention index monitoring. / Mattinen, Maija-Liisa; Saarela, Kristina; Sandell, Erik.

In: Toxicological and Environmental Chemistry, Vol. 40, No. 1 - 4, 1993, p. 133 - 142.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Possibilities of analyzing indoor air by gas chromatography using retention index monitoring

AU - Mattinen, Maija-Liisa

AU - Saarela, Kristina

AU - Sandell, Erik

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AB - Indoor air samples are usually collected in Tenax TA™ adsorbent tubes and analyzed using a thermal desorption cold trap injector combined with GC/MS‐ and/or GC/FID‐ techniques. Often only selected sample tubes can be analyzed using rather expensive GC/MS equipment for compound identification. The identification and quantitation method described here employs a two‐channel high resolution gas Chromatograph equipped with a thermal desorption cold trap injector and two flame ionization detectors. Separation of sample compounds is done using two capillary columns of different polarity stationary phases. Identifications are made by two‐channel retention index monitoring (RIM) using a pattern recognition software for automatic assignment of selected n‐alkane standards from among sample peaks. RIM is suitable for analyzing indoor air samples when (I) preliminary results are needed immediately, (II) the amount of the different sample compounds are on a same concentration level, and (III) tens of similar samples from different sources are to be analyzed. In addition (IV) the method is easy to use in routine laboratory practice.

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