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PAL SPME Arrow—evaluation of a novel solid-phase microextraction device for freely dissolved PAHs in water

After more than 25 years, solid-phase microextraction (SPME) has gained widespread acceptance as a well-automatable and flexible microextraction technique, while its instrumental basis remained mostly unchanged. The novel PAL (Prep And Load solution) SPME Arrow combines the advantages of SPME with t...

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Autores principales: Kremser, Andreas, Jochmann, Maik A., Schmidt, Torsten C.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4709367/
https://www.ncbi.nlm.nih.gov/pubmed/26677018
http://dx.doi.org/10.1007/s00216-015-9187-z
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author Kremser, Andreas
Jochmann, Maik A.
Schmidt, Torsten C.
author_facet Kremser, Andreas
Jochmann, Maik A.
Schmidt, Torsten C.
author_sort Kremser, Andreas
collection PubMed
description After more than 25 years, solid-phase microextraction (SPME) has gained widespread acceptance as a well-automatable and flexible microextraction technique, while its instrumental basis remained mostly unchanged. The novel PAL (Prep And Load solution) SPME Arrow combines the advantages of SPME with the benefits of extraction techniques providing larger sorption phase volumes such as stir bar sorptive extraction (SBSE). It thereby avoids the inherent drawbacks of both techniques such as limitations in method automation in the case of SBSE, as well as the small sorption phase volumes and the lacking fiber robustness of classical SPME fibers. This new design is based on a robust stainless steel backbone, carrying, the screw connection to the PAL sampler, the enlarged sorption phase, and an arrow-shaped tip for conservative penetration of septa (hence the name). An outer capillary encloses this phase apart from enrichment and desorption processes and rests against the tip during transfer and penetrations, resulting in a homogeneously closed device. Here, we present an evaluation and a comparison of the novel PAL SPME Arrow with classical SPME fibers, extracting polycyclic aromatic hydrocarbons (PAHs) as model analytes, from the freely dissolved fraction in lab water and groundwater via direct immersion using polydimethylsiloxane (PDMS) as common sorption phase material. Limits of detection, repeatabilities, and extraction yields were determined for the PAL SPME Arrow and compared to data of classical SPME fibers and SBSE bars. Results indicate a significant benefit in extraction efficiency due to the larger sorption phase volume. It is accompanied by faultless mechanical robustness and thus better reliability, especially in case of prolonged, unattended, and automated operation. As an exemplary application, the water-soluble fraction of PAHs and derivatives in a roofing felt sample was quantified. [Figure: see text] ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s00216-015-9187-z) contains supplementary material, which is available to authorized users.
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spelling pubmed-47093672016-01-19 PAL SPME Arrow—evaluation of a novel solid-phase microextraction device for freely dissolved PAHs in water Kremser, Andreas Jochmann, Maik A. Schmidt, Torsten C. Anal Bioanal Chem Research Paper After more than 25 years, solid-phase microextraction (SPME) has gained widespread acceptance as a well-automatable and flexible microextraction technique, while its instrumental basis remained mostly unchanged. The novel PAL (Prep And Load solution) SPME Arrow combines the advantages of SPME with the benefits of extraction techniques providing larger sorption phase volumes such as stir bar sorptive extraction (SBSE). It thereby avoids the inherent drawbacks of both techniques such as limitations in method automation in the case of SBSE, as well as the small sorption phase volumes and the lacking fiber robustness of classical SPME fibers. This new design is based on a robust stainless steel backbone, carrying, the screw connection to the PAL sampler, the enlarged sorption phase, and an arrow-shaped tip for conservative penetration of septa (hence the name). An outer capillary encloses this phase apart from enrichment and desorption processes and rests against the tip during transfer and penetrations, resulting in a homogeneously closed device. Here, we present an evaluation and a comparison of the novel PAL SPME Arrow with classical SPME fibers, extracting polycyclic aromatic hydrocarbons (PAHs) as model analytes, from the freely dissolved fraction in lab water and groundwater via direct immersion using polydimethylsiloxane (PDMS) as common sorption phase material. Limits of detection, repeatabilities, and extraction yields were determined for the PAL SPME Arrow and compared to data of classical SPME fibers and SBSE bars. Results indicate a significant benefit in extraction efficiency due to the larger sorption phase volume. It is accompanied by faultless mechanical robustness and thus better reliability, especially in case of prolonged, unattended, and automated operation. As an exemplary application, the water-soluble fraction of PAHs and derivatives in a roofing felt sample was quantified. [Figure: see text] ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s00216-015-9187-z) contains supplementary material, which is available to authorized users. Springer Berlin Heidelberg 2015-12-16 2016 /pmc/articles/PMC4709367/ /pubmed/26677018 http://dx.doi.org/10.1007/s00216-015-9187-z Text en © The Author(s) 2015 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Research Paper
Kremser, Andreas
Jochmann, Maik A.
Schmidt, Torsten C.
PAL SPME Arrow—evaluation of a novel solid-phase microextraction device for freely dissolved PAHs in water
title PAL SPME Arrow—evaluation of a novel solid-phase microextraction device for freely dissolved PAHs in water
title_full PAL SPME Arrow—evaluation of a novel solid-phase microextraction device for freely dissolved PAHs in water
title_fullStr PAL SPME Arrow—evaluation of a novel solid-phase microextraction device for freely dissolved PAHs in water
title_full_unstemmed PAL SPME Arrow—evaluation of a novel solid-phase microextraction device for freely dissolved PAHs in water
title_short PAL SPME Arrow—evaluation of a novel solid-phase microextraction device for freely dissolved PAHs in water
title_sort pal spme arrow—evaluation of a novel solid-phase microextraction device for freely dissolved pahs in water
topic Research Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4709367/
https://www.ncbi.nlm.nih.gov/pubmed/26677018
http://dx.doi.org/10.1007/s00216-015-9187-z
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