Solid phase microextraction Arrow for the sampling of volatile amines in wastewater and atmosphere

Aku Helin, Tuukka Juho Rönkkö, Evgeny Parshintsev, Kari Mikael Hartonen, Beat Schilling, Thomas Läubli, Marja-Liisa Riekkola

Research output: Contribution to journalArticleScientificpeer-review

Abstract

A new method is introduced for the sampling of volatile low molecular weight alkylamines in ambient air and wastewater by utilizing a novel SPME Arrow system, which contains a larger volume of sorbent compared to a standard SPME fiber. Parameters affecting the extraction, such as coating material, need for preconcentration, sample volume, pH, stirring rate, salt addition, extraction time and temperature were carefully optimized. In addition, analysis conditions, including desorption temperature and time as well as gas chromatographic parameters, were optimized. Compared to conventional SPME fiber, the SPME Arrow had better robustness and sensitivity. Average intermediate reproducibility of the method expressed as relative standard deviation was 12% for dimethylamine and 14% for trimethylamine, and their limit of quantification 10 mu g/L and 0.13 mu g/L respectively. Working range was from limits of quantification to 500 mu g/L for dimethylamine and to 130 mu g/L for trimethylamine. Several alkylamines were qualitatively analyzed in real samples, while target compounds dimethyl- and trimethylamines were quantified. The concentrations in influent and effluent wastewater samples were almost the same (similar to 80 mu g/L for dimethylamine, 120 mu g/L for trimethylamine) meaning that amines pass the water purification process unchanged or they are produced at the same rate as they are removed. For the air samples, preconcentration with phosphoric acid coated denuder was required and the concentration of trimethylamine was found to be around 1 ng/m(3). The developed method was compared with optimized method based on conventional SPME and advantages and disadvantages of both approaches are discussed. (C) 2015 Elsevier B.V. All rights reserved.
Original languageEnglish
JournalJournal of Chromatography. A
Volume1426
Pages (from-to)56-63
Number of pages8
ISSN0021-9673
DOIs
Publication statusPublished - 2015
MoE publication typeA1 Journal article-refereed

Fields of Science

  • 116 Chemical sciences

Cite this

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title = "Solid phase microextraction Arrow for the sampling of volatile amines in wastewater and atmosphere",
abstract = "A new method is introduced for the sampling of volatile low molecular weight alkylamines in ambient air and wastewater by utilizing a novel SPME Arrow system, which contains a larger volume of sorbent compared to a standard SPME fiber. Parameters affecting the extraction, such as coating material, need for preconcentration, sample volume, pH, stirring rate, salt addition, extraction time and temperature were carefully optimized. In addition, analysis conditions, including desorption temperature and time as well as gas chromatographic parameters, were optimized. Compared to conventional SPME fiber, the SPME Arrow had better robustness and sensitivity. Average intermediate reproducibility of the method expressed as relative standard deviation was 12{\%} for dimethylamine and 14{\%} for trimethylamine, and their limit of quantification 10 mu g/L and 0.13 mu g/L respectively. Working range was from limits of quantification to 500 mu g/L for dimethylamine and to 130 mu g/L for trimethylamine. Several alkylamines were qualitatively analyzed in real samples, while target compounds dimethyl- and trimethylamines were quantified. The concentrations in influent and effluent wastewater samples were almost the same (similar to 80 mu g/L for dimethylamine, 120 mu g/L for trimethylamine) meaning that amines pass the water purification process unchanged or they are produced at the same rate as they are removed. For the air samples, preconcentration with phosphoric acid coated denuder was required and the concentration of trimethylamine was found to be around 1 ng/m(3). The developed method was compared with optimized method based on conventional SPME and advantages and disadvantages of both approaches are discussed. (C) 2015 Elsevier B.V. All rights reserved.",
keywords = "116 Chemical sciences",
author = "Aku Helin and R{\"o}nkk{\"o}, {Tuukka Juho} and Evgeny Parshintsev and Hartonen, {Kari Mikael} and Beat Schilling and Thomas L{\"a}ubli and Marja-Liisa Riekkola",
year = "2015",
doi = "10.1016/j.chroma.2015.11.061",
language = "English",
volume = "1426",
pages = "56--63",
journal = "Journal of Chromatography. A",
issn = "0021-9673",
publisher = "Elsevier Scientific Publ. Co",

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Solid phase microextraction Arrow for the sampling of volatile amines in wastewater and atmosphere. / Helin, Aku; Rönkkö, Tuukka Juho; Parshintsev, Evgeny; Hartonen, Kari Mikael; Schilling, Beat; Läubli, Thomas; Riekkola, Marja-Liisa.

In: Journal of Chromatography. A, Vol. 1426, 2015, p. 56-63.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Solid phase microextraction Arrow for the sampling of volatile amines in wastewater and atmosphere

AU - Helin, Aku

AU - Rönkkö, Tuukka Juho

AU - Parshintsev, Evgeny

AU - Hartonen, Kari Mikael

AU - Schilling, Beat

AU - Läubli, Thomas

AU - Riekkola, Marja-Liisa

PY - 2015

Y1 - 2015

N2 - A new method is introduced for the sampling of volatile low molecular weight alkylamines in ambient air and wastewater by utilizing a novel SPME Arrow system, which contains a larger volume of sorbent compared to a standard SPME fiber. Parameters affecting the extraction, such as coating material, need for preconcentration, sample volume, pH, stirring rate, salt addition, extraction time and temperature were carefully optimized. In addition, analysis conditions, including desorption temperature and time as well as gas chromatographic parameters, were optimized. Compared to conventional SPME fiber, the SPME Arrow had better robustness and sensitivity. Average intermediate reproducibility of the method expressed as relative standard deviation was 12% for dimethylamine and 14% for trimethylamine, and their limit of quantification 10 mu g/L and 0.13 mu g/L respectively. Working range was from limits of quantification to 500 mu g/L for dimethylamine and to 130 mu g/L for trimethylamine. Several alkylamines were qualitatively analyzed in real samples, while target compounds dimethyl- and trimethylamines were quantified. The concentrations in influent and effluent wastewater samples were almost the same (similar to 80 mu g/L for dimethylamine, 120 mu g/L for trimethylamine) meaning that amines pass the water purification process unchanged or they are produced at the same rate as they are removed. For the air samples, preconcentration with phosphoric acid coated denuder was required and the concentration of trimethylamine was found to be around 1 ng/m(3). The developed method was compared with optimized method based on conventional SPME and advantages and disadvantages of both approaches are discussed. (C) 2015 Elsevier B.V. All rights reserved.

AB - A new method is introduced for the sampling of volatile low molecular weight alkylamines in ambient air and wastewater by utilizing a novel SPME Arrow system, which contains a larger volume of sorbent compared to a standard SPME fiber. Parameters affecting the extraction, such as coating material, need for preconcentration, sample volume, pH, stirring rate, salt addition, extraction time and temperature were carefully optimized. In addition, analysis conditions, including desorption temperature and time as well as gas chromatographic parameters, were optimized. Compared to conventional SPME fiber, the SPME Arrow had better robustness and sensitivity. Average intermediate reproducibility of the method expressed as relative standard deviation was 12% for dimethylamine and 14% for trimethylamine, and their limit of quantification 10 mu g/L and 0.13 mu g/L respectively. Working range was from limits of quantification to 500 mu g/L for dimethylamine and to 130 mu g/L for trimethylamine. Several alkylamines were qualitatively analyzed in real samples, while target compounds dimethyl- and trimethylamines were quantified. The concentrations in influent and effluent wastewater samples were almost the same (similar to 80 mu g/L for dimethylamine, 120 mu g/L for trimethylamine) meaning that amines pass the water purification process unchanged or they are produced at the same rate as they are removed. For the air samples, preconcentration with phosphoric acid coated denuder was required and the concentration of trimethylamine was found to be around 1 ng/m(3). The developed method was compared with optimized method based on conventional SPME and advantages and disadvantages of both approaches are discussed. (C) 2015 Elsevier B.V. All rights reserved.

KW - 116 Chemical sciences

U2 - 10.1016/j.chroma.2015.11.061

DO - 10.1016/j.chroma.2015.11.061

M3 - Article

VL - 1426

SP - 56

EP - 63

JO - Journal of Chromatography. A

JF - Journal of Chromatography. A

SN - 0021-9673

ER -