Purge-and-membrane with ECD. A new screening method for chlorinated aliphatic hydrocarbons

Risto Kostiainen, Tapio Kotiaho, Raimo Ketola, Vesa Virkki

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

A new analytical technique; purge-and-membrane-electron capture detection (ECD), is described and applied to the screening of halogenated aliphatic hydrocarbons. A water sample is first purged by helium and the purged compounds are collected from the gas phase through a silicone membrane to the analytical system. Purge-and-membrane-ECD provides very fast, selective and sensitive screening method for halogenated aliphatic hydrocarbons. The method was compared with conventional direct membrane extraction. Results obtained show that the limits of detection (0.01–2 μg L−1) were comparable with both methods. However, significant shorter response times were measured with purge-and-trap than with direct membrane extraction.
Original languageEnglish
Pages (from-to)34-36
JournalChromatographia
Volume41
Issue number1-2
DOIs
Publication statusPublished - 1995
MoE publication typeA1 Journal article-refereed

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Chlorinated Hydrocarbons
Screening
Electrons
Membranes
Halogenated Hydrocarbons
Helium
Silicones
Reaction Time
Limit of Detection
Gases
Water

Keywords

  • volatile organic compounds
  • Membrane extraction
  • Electron capture detection

Cite this

Kostiainen, Risto ; Kotiaho, Tapio ; Ketola, Raimo ; Virkki, Vesa. / Purge-and-membrane with ECD. A new screening method for chlorinated aliphatic hydrocarbons. In: Chromatographia. 1995 ; Vol. 41, No. 1-2. pp. 34-36.
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abstract = "A new analytical technique; purge-and-membrane-electron capture detection (ECD), is described and applied to the screening of halogenated aliphatic hydrocarbons. A water sample is first purged by helium and the purged compounds are collected from the gas phase through a silicone membrane to the analytical system. Purge-and-membrane-ECD provides very fast, selective and sensitive screening method for halogenated aliphatic hydrocarbons. The method was compared with conventional direct membrane extraction. Results obtained show that the limits of detection (0.01–2 μg L−1) were comparable with both methods. However, significant shorter response times were measured with purge-and-trap than with direct membrane extraction.",
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Purge-and-membrane with ECD. A new screening method for chlorinated aliphatic hydrocarbons. / Kostiainen, Risto; Kotiaho, Tapio; Ketola, Raimo; Virkki, Vesa.

In: Chromatographia, Vol. 41, No. 1-2, 1995, p. 34-36.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Purge-and-membrane with ECD. A new screening method for chlorinated aliphatic hydrocarbons

AU - Kostiainen, Risto

AU - Kotiaho, Tapio

AU - Ketola, Raimo

AU - Virkki, Vesa

PY - 1995

Y1 - 1995

N2 - A new analytical technique; purge-and-membrane-electron capture detection (ECD), is described and applied to the screening of halogenated aliphatic hydrocarbons. A water sample is first purged by helium and the purged compounds are collected from the gas phase through a silicone membrane to the analytical system. Purge-and-membrane-ECD provides very fast, selective and sensitive screening method for halogenated aliphatic hydrocarbons. The method was compared with conventional direct membrane extraction. Results obtained show that the limits of detection (0.01–2 μg L−1) were comparable with both methods. However, significant shorter response times were measured with purge-and-trap than with direct membrane extraction.

AB - A new analytical technique; purge-and-membrane-electron capture detection (ECD), is described and applied to the screening of halogenated aliphatic hydrocarbons. A water sample is first purged by helium and the purged compounds are collected from the gas phase through a silicone membrane to the analytical system. Purge-and-membrane-ECD provides very fast, selective and sensitive screening method for halogenated aliphatic hydrocarbons. The method was compared with conventional direct membrane extraction. Results obtained show that the limits of detection (0.01–2 μg L−1) were comparable with both methods. However, significant shorter response times were measured with purge-and-trap than with direct membrane extraction.

KW - volatile organic compounds

KW - Membrane extraction

KW - Electron capture detection

U2 - 10.1007/BF02274192

DO - 10.1007/BF02274192

M3 - Article

VL - 41

SP - 34

EP - 36

JO - Chromatographia

JF - Chromatographia

SN - 0009-5893

IS - 1-2

ER -