Fully Automated Online Dynamic In-Tube Extraction for Continuous Sampling of Volatile Organic Compounds in Air

Tutkimustuotos: ArtikkelijulkaisuArtikkeliTieteellinenvertaisarvioitu

Kuvaus

Comprehensive and time-dependent information (e.g. chemical composition, concentration) of volatile organic compounds (VOCs) in atmospheric, indoor and breath air is essential to understand the fundamental science of atmosphere, air quality and diseases diagnostic. Here, we introduced a fully automated on-line dynamic in-tube extraction (ITEX)-gas chromatog-raphy-mass spectrometry (GC-MS) method for continuous and quantitative monitoring of VOCs in air. In this approach, modified Cycle Composer software and PAL auto-sampler controlled and operated ITEX preconditioning, internal standard (ISTD) addition, air sampling and ITEX desorption sequentially to enable full automation. Air flow passed through the ITEX with the help of an external pump, instead of plunger up-down strokes, to allow larger sampling volumes, exhaustive extrac-tion and consequently lower detection limits. Further, in order to evaluate the ITEX system stability and to develop the cor-responding quantitative ITEX-method, two laboratory-made permeation systems (for standard VOCs and ISTD) were con-structed. The stability and suitability of the developed system was validated with a consecutive 19 days’ atmospheric air campaign under automation. By using electrospun polyacrylonitrile nanofibers packed ITEX, selective extraction of some VOCs and durability of over 1500 extraction and desorption cycles were achieved. Especially, the latter step is critically important for on-site long-term application at remote regions. This ITEX method provided two to three magnitudes lower quantitation limits than headspace dynamic ITEX method and other needle trap methods. Our results proved the excellence of the fully automated on-line dynamic ITEX-GC-MS system for tracking VOCs in the atmospheric air.
Alkuperäiskielienglanti
LehtiAnalytical Chemistry
Vuosikerta91
Numero13
Sivut8507-8515
Sivumäärä9
ISSN0003-2700
DOI - pysyväislinkit
TilaJulkaistu - 6 kesäkuuta 2019
OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä, vertaisarvioitu

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  • 116 Kemia

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@article{d4ddb122e67f4264941030ca42dd712f,
title = "Fully Automated Online Dynamic In-Tube Extraction for Continuous Sampling of Volatile Organic Compounds in Air",
abstract = "Comprehensive and time-dependent information (e.g. chemical composition, concentration) of volatile organic compounds (VOCs) in atmospheric, indoor and breath air is essential to understand the fundamental science of atmosphere, air quality and diseases diagnostic. Here, we introduced a fully automated on-line dynamic in-tube extraction (ITEX)-gas chromatog-raphy-mass spectrometry (GC-MS) method for continuous and quantitative monitoring of VOCs in air. In this approach, modified Cycle Composer software and PAL auto-sampler controlled and operated ITEX preconditioning, internal standard (ISTD) addition, air sampling and ITEX desorption sequentially to enable full automation. Air flow passed through the ITEX with the help of an external pump, instead of plunger up-down strokes, to allow larger sampling volumes, exhaustive extrac-tion and consequently lower detection limits. Further, in order to evaluate the ITEX system stability and to develop the cor-responding quantitative ITEX-method, two laboratory-made permeation systems (for standard VOCs and ISTD) were con-structed. The stability and suitability of the developed system was validated with a consecutive 19 days’ atmospheric air campaign under automation. By using electrospun polyacrylonitrile nanofibers packed ITEX, selective extraction of some VOCs and durability of over 1500 extraction and desorption cycles were achieved. Especially, the latter step is critically important for on-site long-term application at remote regions. This ITEX method provided two to three magnitudes lower quantitation limits than headspace dynamic ITEX method and other needle trap methods. Our results proved the excellence of the fully automated on-line dynamic ITEX-GC-MS system for tracking VOCs in the atmospheric air.",
keywords = "116 Chemical sciences",
author = "Hangzhen Lan and Jani Holopainen and Kari Hartonen and Matti Jussila and Mikko Ritala and Marja-Liisa Riekkola",
year = "2019",
month = "6",
day = "6",
doi = "10.1021/acs.analchem.9b01668",
language = "English",
volume = "91",
pages = "8507--8515",
journal = "Analytical Chemistry",
issn = "0003-2700",
publisher = "American Chemical Society Journals",
number = "13",

}

Fully Automated Online Dynamic In-Tube Extraction for Continuous Sampling of Volatile Organic Compounds in Air. / Lan, Hangzhen; Holopainen, Jani; Hartonen, Kari; Jussila, Matti; Ritala, Mikko; Riekkola, Marja-Liisa.

julkaisussa: Analytical Chemistry, Vuosikerta 91, Nro 13, 06.06.2019, s. 8507-8515.

Tutkimustuotos: ArtikkelijulkaisuArtikkeliTieteellinenvertaisarvioitu

TY - JOUR

T1 - Fully Automated Online Dynamic In-Tube Extraction for Continuous Sampling of Volatile Organic Compounds in Air

AU - Lan, Hangzhen

AU - Holopainen, Jani

AU - Hartonen, Kari

AU - Jussila, Matti

AU - Ritala, Mikko

AU - Riekkola, Marja-Liisa

PY - 2019/6/6

Y1 - 2019/6/6

N2 - Comprehensive and time-dependent information (e.g. chemical composition, concentration) of volatile organic compounds (VOCs) in atmospheric, indoor and breath air is essential to understand the fundamental science of atmosphere, air quality and diseases diagnostic. Here, we introduced a fully automated on-line dynamic in-tube extraction (ITEX)-gas chromatog-raphy-mass spectrometry (GC-MS) method for continuous and quantitative monitoring of VOCs in air. In this approach, modified Cycle Composer software and PAL auto-sampler controlled and operated ITEX preconditioning, internal standard (ISTD) addition, air sampling and ITEX desorption sequentially to enable full automation. Air flow passed through the ITEX with the help of an external pump, instead of plunger up-down strokes, to allow larger sampling volumes, exhaustive extrac-tion and consequently lower detection limits. Further, in order to evaluate the ITEX system stability and to develop the cor-responding quantitative ITEX-method, two laboratory-made permeation systems (for standard VOCs and ISTD) were con-structed. The stability and suitability of the developed system was validated with a consecutive 19 days’ atmospheric air campaign under automation. By using electrospun polyacrylonitrile nanofibers packed ITEX, selective extraction of some VOCs and durability of over 1500 extraction and desorption cycles were achieved. Especially, the latter step is critically important for on-site long-term application at remote regions. This ITEX method provided two to three magnitudes lower quantitation limits than headspace dynamic ITEX method and other needle trap methods. Our results proved the excellence of the fully automated on-line dynamic ITEX-GC-MS system for tracking VOCs in the atmospheric air.

AB - Comprehensive and time-dependent information (e.g. chemical composition, concentration) of volatile organic compounds (VOCs) in atmospheric, indoor and breath air is essential to understand the fundamental science of atmosphere, air quality and diseases diagnostic. Here, we introduced a fully automated on-line dynamic in-tube extraction (ITEX)-gas chromatog-raphy-mass spectrometry (GC-MS) method for continuous and quantitative monitoring of VOCs in air. In this approach, modified Cycle Composer software and PAL auto-sampler controlled and operated ITEX preconditioning, internal standard (ISTD) addition, air sampling and ITEX desorption sequentially to enable full automation. Air flow passed through the ITEX with the help of an external pump, instead of plunger up-down strokes, to allow larger sampling volumes, exhaustive extrac-tion and consequently lower detection limits. Further, in order to evaluate the ITEX system stability and to develop the cor-responding quantitative ITEX-method, two laboratory-made permeation systems (for standard VOCs and ISTD) were con-structed. The stability and suitability of the developed system was validated with a consecutive 19 days’ atmospheric air campaign under automation. By using electrospun polyacrylonitrile nanofibers packed ITEX, selective extraction of some VOCs and durability of over 1500 extraction and desorption cycles were achieved. Especially, the latter step is critically important for on-site long-term application at remote regions. This ITEX method provided two to three magnitudes lower quantitation limits than headspace dynamic ITEX method and other needle trap methods. Our results proved the excellence of the fully automated on-line dynamic ITEX-GC-MS system for tracking VOCs in the atmospheric air.

KW - 116 Chemical sciences

U2 - 10.1021/acs.analchem.9b01668

DO - 10.1021/acs.analchem.9b01668

M3 - Article

VL - 91

SP - 8507

EP - 8515

JO - Analytical Chemistry

JF - Analytical Chemistry

SN - 0003-2700

IS - 13

ER -