Extraction Methods For Assessing The Bioaccessibility Of Potentially Toxic Elements In Urban Airborne Particulate Matter By Inductively Coupled Plasma Mass Spectrometry PDF Books

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Extraction Methods For Assessing The Bioaccessibility Of Potentially Toxic Elements In Urban Airborne Particulate Matter By Inductively Coupled Plasma Mass Spectrometry

Extraction Methods For Assessing The Bioaccessibility Of Potentially Toxic Elements In Urban Airborne Particulate Matter By Inductively Coupled Plasma Mass Spectrometry
Author: Jawad Ali Hussein Alpofead
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Inhaled particulate matter (PM), containing bioaccessible potentially toxic elements (PTE) has attracted attention due to potential human health risk. This study was to develop and assess the suitability of simplified bioaccessibility extraction test (SBET) and the stomach phase of unified bioaccessibility method (UBMSG) to measure bioaccessible PTE in PM10 collected on filter dynamic measurement system (FDMS) filters used worldwide. Analytes were As, Cd, Cr, Cu, Fe, Mn, Ni, Pb, and Zn and measured by ICP-MS.The SBET and UBMSG were miniaturised for application to PM10. Reducing sample mass and reagents volume by a factor of 10 for the SBET and by a factor of 6 for UBMSG, and presence of the FDMS filter did not affect PTE extractabilities. Bioaccessible PTE in blank FDMS filters were generally low, except for Zn. Washing acrodisc® syringe filters immediately before use with 80 mL of glycine reduced the concentration of Cu and Zn in procedural SBET blanks from 119 and 1520 to 0.129 and 14.5 μg L-1, respectively.New closed-loop and single-pass dynamic models for the SBET and UBMSG either coupled or not with ICP-MS were successfully applied to determine bioaccessible PTE in real and simulated PM10 samples. Accuracy of models was ascertained by mass balance, and verified by Z-scores, which were generally acceptable. For single-pass models, rapid mobilization was observed for PTE, except for Cr.Finally, a new artificial mucus fluid was applied sequentially with the SBET and UBMSG (gastric fluid only) to measure bioaccessible PTE in inhaled PM10. Bioaccessible PTE concentrations, which were underestimated for As, Cr, Cu, and Pb, and overestimated for Cd, Fe, Ni and Zn using ingestion route alone, were more accurately determined. Extraction methods that are more similar to real body processes were successfully created to determine bioaccessible PTE in PM10 that are inhaled and subsequently ingested.
Extraction Methods for Assessing the Bioaccessibility of Potentially Toxic Elements in Urban Airborne Particulate Matter by Inductively Coupled Plasma Mass Spectrometry
Language: en
Pages: 506
Authors: Jawad Ali Hussein Alpofead
Categories:
Type: BOOK - Published: 2016 - Publisher:
Inhaled particulate matter (PM), containing bioaccessible potentially toxic elements (PTE) has attracted attention due to potential human health risk. This study was to develop and assess the suitability of simplified bioaccessibility extraction test (SBET) and the stomach phase of unified bioaccessibility method (UBMSG) to measure bioaccessible PTE in PM10 collected on filter dynamic measurement system (FDMS) filters used worldwide. Analytes were As, Cd, Cr, Cu, Fe, Mn, Ni, Pb, and Zn and measured by ICP-MS.The SBET and UBMSG were miniaturised for application to PM10. Reducing sample mass and reagents volume by a factor of 10 for the SBET and by a factor of 6 for UBMSG, and presence of the FDMS filter did not affect PTE extractabilities. Bioaccessible PTE in blank FDMS filters were generally low, except for Zn. Washing acrodisc® syringe filters immediately before use with 80 mL of glycine reduced the concentration of Cu and Zn in procedural SBET blanks from 119 and 1520 to 0.129 and 14.5 μg L-1, respectively.New closed-loop and single-pass dynamic models for the SBET and UBMSG either coupled or not with ICP-MS were successfully applied to determine bioaccessible PTE in real and simulated PM10 samples. Accuracy of models was ascertained by mass balance,
Issues in Analysis, Measurement, Monitoring, Imaging, and Remote Sensing Technology: 2011 Edition
Language: en
Pages: 2350
Authors: Jawad Ali Hussein Alpofead
Categories: Science
Type: BOOK - Published: 2012-01-09 - Publisher: ScholarlyEditions
Issues in Analysis, Measurement, Monitoring, Imaging, and Remote Sensing Technology: 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Analysis, Measurement, Monitoring, Imaging, and Remote Sensing Technology. The editors have built Issues in Analysis, Measurement, Monitoring, Imaging, and Remote Sensing Technology: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Analysis, Measurement, Monitoring, Imaging, and Remote Sensing Technology in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Analysis, Measurement, Monitoring, Imaging, and Remote Sensing Technology: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Urbane Böden
Language: de
Pages: 161
Authors: Dieter A. Hiller, Helmut Meuser
Categories: Nature
Type: BOOK - Published: 2013-03-12 - Publisher: Springer-Verlag
Books about Urbane Böden
Probennahme und Aufschluß
Language: de
Pages: 181
Authors: Markus Stoeppler
Categories: Science
Type: BOOK - Published: 2013-03-07 - Publisher: Springer-Verlag
Probenahme und Probenaufschluß wollen gelernt sein, denn von ihnen hängt die Qualität der chemischen Analyse ab. Das korrekte Vorgehen vermittelt Ihnen dieses Laborbuch. Strategien zur zeitlichen und räumlichen Auswahl repräsentativer Proben werden ebenso behandelt wie die Prinzipien und Probleme der Druckaufschlußmethoden. Die Beschreibung reicht von Materialien aus der Umwelt über Lebensmittel bis zu Humanmaterial.
Bioindikatoren
Language: de
Pages: 388
Authors: Uwe Arndt, Willfried Nobel, Birgit Schweizer
Categories: Indicators (Biology)
Type: BOOK - Published: 1987 - Publisher:
Books about Bioindikatoren
Urbaner Bodenschutz
Language: de
Pages: 244
Authors: Arbeitskreis Stadtböden der Deutschen BodenkundlichenGesellschaft
Categories: Nature
Type: BOOK - Published: 2013-03-12 - Publisher: Springer-Verlag
Books about Urbaner Bodenschutz