Purge-and-membrane mass spectrometry, A screening method for analysis of VOCs from soil samples

Marja Ojala, Ismo Mattila, Virpi Tarkiainen, Timo Särme, Raimo Ketola, Anniina Määttänen, Risto Kostiainen, Tapio Kotiaho (Corresponding Author)

Research output: Contribution to journalArticleScientificpeer-review

23 Citations (Scopus)

Abstract

Purge-and-membrane mass spectrometry (PAM-MS) is a combination of dynamic headspace sampling and membrane extraction. A new and simple purge-and-membrane sampler is introduced and its basic testing results for the analysis of VOCs in soil samples are reported. Soil moisture had no effect on desorption times in the case of sand, but the desorption times increased when the content of organic matter in the soil sample (garden soil) increased. The longest desorption times were measured with dry garden soil samples. For both types of samples, minor differences in desorption peak areas were observed between 10 and 20% moisture. Detection limits of the VOCs varied in the range 2−150 μg/kg, depending on the soil type. Good linearity (correlation coefficient > 0.990) was observed in the range 0.5−50 mg/kg. Aging of the spiked soil samples had only a slight effect on desorption peak areas for samples stored at 5 °C up to two weeks, but after six months of storing, differences were observed between dry sand and moistened garden soil. In both cases, peak areas were diminished. On average, 46% of compounds could be desorbed from the aged sand and 86% from the aged garden soil. The modified vapor fortification method was used in preparing standard soil samples, which were analyzed by static headspace gas chromatography (HSGC) and PAM-MS. Some authentic soil samples were also analyzed using both of these techniques. Many of the vapor fortification samples and the authentic samples were also analyzed in another laboratory by HSGC. The agreement between the methods and the laboratories was generally good.
Original languageEnglish
Pages (from-to)3624-3631
Number of pages8
JournalAnalytical Chemistry
Volume73
Issue number15
DOIs
Publication statusPublished - 2001
MoE publication typeA1 Journal article-refereed

Fingerprint

Volatile organic compounds
Mass spectrometry
Screening
Membranes
Soils
Desorption
Sand
Gas chromatography
Vapors
Soil moisture
Biological materials
Moisture
Aging of materials
Sampling
Testing

Cite this

Ojala, M., Mattila, I., Tarkiainen, V., Särme, T., Ketola, R., Määttänen, A., ... Kotiaho, T. (2001). Purge-and-membrane mass spectrometry, A screening method for analysis of VOCs from soil samples. Analytical Chemistry, 73(15), 3624-3631. https://doi.org/10.1021/ac001504i
Ojala, Marja ; Mattila, Ismo ; Tarkiainen, Virpi ; Särme, Timo ; Ketola, Raimo ; Määttänen, Anniina ; Kostiainen, Risto ; Kotiaho, Tapio. / Purge-and-membrane mass spectrometry, A screening method for analysis of VOCs from soil samples. In: Analytical Chemistry. 2001 ; Vol. 73, No. 15. pp. 3624-3631.
@article{cc7f1e4c56a44b24b67960897ce595fe,
title = "Purge-and-membrane mass spectrometry, A screening method for analysis of VOCs from soil samples",
abstract = "Purge-and-membrane mass spectrometry (PAM-MS) is a combination of dynamic headspace sampling and membrane extraction. A new and simple purge-and-membrane sampler is introduced and its basic testing results for the analysis of VOCs in soil samples are reported. Soil moisture had no effect on desorption times in the case of sand, but the desorption times increased when the content of organic matter in the soil sample (garden soil) increased. The longest desorption times were measured with dry garden soil samples. For both types of samples, minor differences in desorption peak areas were observed between 10 and 20{\%} moisture. Detection limits of the VOCs varied in the range 2−150 μg/kg, depending on the soil type. Good linearity (correlation coefficient > 0.990) was observed in the range 0.5−50 mg/kg. Aging of the spiked soil samples had only a slight effect on desorption peak areas for samples stored at 5 °C up to two weeks, but after six months of storing, differences were observed between dry sand and moistened garden soil. In both cases, peak areas were diminished. On average, 46{\%} of compounds could be desorbed from the aged sand and 86{\%} from the aged garden soil. The modified vapor fortification method was used in preparing standard soil samples, which were analyzed by static headspace gas chromatography (HSGC) and PAM-MS. Some authentic soil samples were also analyzed using both of these techniques. Many of the vapor fortification samples and the authentic samples were also analyzed in another laboratory by HSGC. The agreement between the methods and the laboratories was generally good.",
author = "Marja Ojala and Ismo Mattila and Virpi Tarkiainen and Timo S{\"a}rme and Raimo Ketola and Anniina M{\"a}{\"a}tt{\"a}nen and Risto Kostiainen and Tapio Kotiaho",
year = "2001",
doi = "10.1021/ac001504i",
language = "English",
volume = "73",
pages = "3624--3631",
journal = "Analytical Chemistry",
issn = "0003-2700",
publisher = "American Chemical Society",
number = "15",

}

Ojala, M, Mattila, I, Tarkiainen, V, Särme, T, Ketola, R, Määttänen, A, Kostiainen, R & Kotiaho, T 2001, 'Purge-and-membrane mass spectrometry, A screening method for analysis of VOCs from soil samples', Analytical Chemistry, vol. 73, no. 15, pp. 3624-3631. https://doi.org/10.1021/ac001504i

Purge-and-membrane mass spectrometry, A screening method for analysis of VOCs from soil samples. / Ojala, Marja; Mattila, Ismo; Tarkiainen, Virpi; Särme, Timo; Ketola, Raimo; Määttänen, Anniina; Kostiainen, Risto; Kotiaho, Tapio (Corresponding Author).

In: Analytical Chemistry, Vol. 73, No. 15, 2001, p. 3624-3631.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Purge-and-membrane mass spectrometry, A screening method for analysis of VOCs from soil samples

AU - Ojala, Marja

AU - Mattila, Ismo

AU - Tarkiainen, Virpi

AU - Särme, Timo

AU - Ketola, Raimo

AU - Määttänen, Anniina

AU - Kostiainen, Risto

AU - Kotiaho, Tapio

PY - 2001

Y1 - 2001

N2 - Purge-and-membrane mass spectrometry (PAM-MS) is a combination of dynamic headspace sampling and membrane extraction. A new and simple purge-and-membrane sampler is introduced and its basic testing results for the analysis of VOCs in soil samples are reported. Soil moisture had no effect on desorption times in the case of sand, but the desorption times increased when the content of organic matter in the soil sample (garden soil) increased. The longest desorption times were measured with dry garden soil samples. For both types of samples, minor differences in desorption peak areas were observed between 10 and 20% moisture. Detection limits of the VOCs varied in the range 2−150 μg/kg, depending on the soil type. Good linearity (correlation coefficient > 0.990) was observed in the range 0.5−50 mg/kg. Aging of the spiked soil samples had only a slight effect on desorption peak areas for samples stored at 5 °C up to two weeks, but after six months of storing, differences were observed between dry sand and moistened garden soil. In both cases, peak areas were diminished. On average, 46% of compounds could be desorbed from the aged sand and 86% from the aged garden soil. The modified vapor fortification method was used in preparing standard soil samples, which were analyzed by static headspace gas chromatography (HSGC) and PAM-MS. Some authentic soil samples were also analyzed using both of these techniques. Many of the vapor fortification samples and the authentic samples were also analyzed in another laboratory by HSGC. The agreement between the methods and the laboratories was generally good.

AB - Purge-and-membrane mass spectrometry (PAM-MS) is a combination of dynamic headspace sampling and membrane extraction. A new and simple purge-and-membrane sampler is introduced and its basic testing results for the analysis of VOCs in soil samples are reported. Soil moisture had no effect on desorption times in the case of sand, but the desorption times increased when the content of organic matter in the soil sample (garden soil) increased. The longest desorption times were measured with dry garden soil samples. For both types of samples, minor differences in desorption peak areas were observed between 10 and 20% moisture. Detection limits of the VOCs varied in the range 2−150 μg/kg, depending on the soil type. Good linearity (correlation coefficient > 0.990) was observed in the range 0.5−50 mg/kg. Aging of the spiked soil samples had only a slight effect on desorption peak areas for samples stored at 5 °C up to two weeks, but after six months of storing, differences were observed between dry sand and moistened garden soil. In both cases, peak areas were diminished. On average, 46% of compounds could be desorbed from the aged sand and 86% from the aged garden soil. The modified vapor fortification method was used in preparing standard soil samples, which were analyzed by static headspace gas chromatography (HSGC) and PAM-MS. Some authentic soil samples were also analyzed using both of these techniques. Many of the vapor fortification samples and the authentic samples were also analyzed in another laboratory by HSGC. The agreement between the methods and the laboratories was generally good.

U2 - 10.1021/ac001504i

DO - 10.1021/ac001504i

M3 - Article

VL - 73

SP - 3624

EP - 3631

JO - Analytical Chemistry

JF - Analytical Chemistry

SN - 0003-2700

IS - 15

ER -

Ojala M, Mattila I, Tarkiainen V, Särme T, Ketola R, Määttänen A et al. Purge-and-membrane mass spectrometry, A screening method for analysis of VOCs from soil samples. Analytical Chemistry. 2001;73(15):3624-3631. https://doi.org/10.1021/ac001504i