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Book: Bioavailability, bioaccessibility and mobility of environmental contaminants

Dean, John R.

(Analytical techniques in the sciences)

2007

Author's details	John R. Dean
Series title	Analytical techniques in the sciences
Keywords	Pollutants ; Bioavailability ; Umweltgift ; Bioverfügbarkeit
Subject	Biologische Verfügbarkeit ; Bioavailability ; Alltagsgift ; Umweltschadstoff ; Umweltnoxe
Subject code	628.5
Language	English
Size	XXI, 292 S. : Ill., graph. Darst.
Publisher	Wiley
Publishing place	Chichester u.a.
Publishing country	Great Britain
Document type	Book
HBZ-ID	HT015017624
ISBN	978-0-470-02577-2 ; 978-0-470-02578-9 ; 0-470-02577-8 ; 0-470-02578-6
Database	Catalogue ZB MED Nutrition, Environment, Agriculture

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Shelf mark	Loan status	Location
078/838	available for loan (reading room)	Freihandmagazin (U1)

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Article ; Online: Use of remote sensing to assess vegetative stress as a proxy for soil contamination.

Dean, John R / Ahmed, Shara / Cheung, William / Salaudeen, Ibrahim / Reynolds, Matthew / Bowerbank, Samantha L / Nicholson, Catherine E / Perry, Justin J

Environmental science. Processes & impacts

2024 Volume 26, Issue 1, Page(s) 161–176

Abstract: We report, for the first time, a multimodal investigation of current crude oil reprocessing and storage sites to assess their impact on the environment after 50 years of continuous operation. We have adopted a dual approach to investigate potential soil ... ...

Abstract	We report, for the first time, a multimodal investigation of current crude oil reprocessing and storage sites to assess their impact on the environment after 50 years of continuous operation. We have adopted a dual approach to investigate potential soil contamination. The first approach uses conventional analytical techniques
MeSH term(s)	Remote Sensing Technology ; Soil ; Petroleum
Chemical Substances	Soil ; Petroleum
Language	English
Publishing date	2024-01-24
Publishing country	England
Document type	Journal Article
ZDB-ID	2703814-2
ISSN	2050-7895 ; 2050-7887
ISSN (online)	2050-7895
ISSN	2050-7887
DOI	10.1039/d3em00480e
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Article ; Online: Forensic profiling of smokeless powders (SLPs) by gas chromatography-mass spectrometry (GC-MS): a systematic investigation into injector conditions and their effect on the characterisation of samples.

Kesic, Blake / McCann, Niamh / Bowerbank, Samantha L / Standley, Troy / Liechti, Jana / Dean, John R / Gallidabino, Matteo D

Analytical and bioanalytical chemistry

2024 Volume 416, Issue 8, Page(s) 1907–1922

Abstract: Smokeless powders (SLPs) are composed of a combination of thermolabile and non-thermolabile compounds. When analysed by GC-MS, injection conditions may therefore play a fundamental role on the characterisation of forensic samples. However, no systematic ... ...

Abstract	Smokeless powders (SLPs) are composed of a combination of thermolabile and non-thermolabile compounds. When analysed by GC-MS, injection conditions may therefore play a fundamental role on the characterisation of forensic samples. However, no systematic investigations have ever been carried out. This casts doubt on the optimal conditions that should be adopted in advanced profiling applications (e.g. class attribution and source association), especially when a traditional split/splitless (S/SL) injector is used. Herein, a study is reported that specifically focused on the evaluation of the liner type (L
Language	English
Publishing date	2024-02-09
Publishing country	Germany
Document type	Journal Article
ZDB-ID	201093-8
ISSN	1618-2650 ; 0016-1152 ; 0372-7920
ISSN (online)	1618-2650
ISSN	0016-1152 ; 0372-7920
DOI	10.1007/s00216-024-05189-w
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Article ; Online: Correction to: Forensic profiling of smokeless powders (SLPs) by gas chromatography-mass spectrometry (GC‑MS): a systematic investigation into injector conditions and their effect on the characterisation of samples.

Kesic, Blake / McCann, Niamh / Bowerbank, Samantha L / Standley, Troy / Liechti, Jana / Dean, John R / Gallidabino, Matteo D

Analytical and bioanalytical chemistry

2024 Volume 416, Issue 10, Page(s) 2581

Language	English
Publishing date	2024-03-06
Publishing country	Germany
Document type	Published Erratum
ZDB-ID	201093-8
ISSN	1618-2650 ; 0016-1152 ; 0372-7920
ISSN (online)	1618-2650
ISSN	0016-1152 ; 0372-7920
DOI	10.1007/s00216-024-05218-8
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Article: Opium Alkaloids in Harvested and Thermally Processed Poppy Seeds.

Carlin, Michelle G / Dean, John R / Ames, Jennifer M

Frontiers in chemistry

2020 Volume 8, Page(s) 737

Abstract: The opium alkaloids (morphine, codeine, thebaine, noscapine, and papaverine) have been detected on poppy seeds; they are widely used by the food industry for decoration and flavor but can introduce opium alkaloids into the food chain. Of the opium ... ...

Abstract	The opium alkaloids (morphine, codeine, thebaine, noscapine, and papaverine) have been detected on poppy seeds; they are widely used by the food industry for decoration and flavor but can introduce opium alkaloids into the food chain. Of the opium alkaloids found on poppy seeds, morphine, and codeine are the most pharmacologically active and have been detected in biological matrices collected in workplace and roadside drug testing resulting in positive opiate results. The European Food Safety Authority introduced an acute reference dose of 10 μg morphine/kg of body weight as a safe level for morphine in food products. In this work, it was found that in harvested poppy seeds, and thermally processed poppy seeds (with and without a food matrix), if used in normal levels would not exceed the recommended acute reference dose. It was also shown that the levels of all alkaloids reduce when thermally processed, in comparison with harvested, untreated seeds.
Language	English
Publishing date	2020-08-27
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2711776-5
ISSN	2296-2646
ISSN	2296-2646
DOI	10.3389/fchem.2020.00737
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Article ; Online: Use of an unmanned aerial vehicle for monitoring and prediction of oilseed rape crop performance.

Ahmed, Shara / Nicholson, Catherine E / Rutter, Simon R / Marshall, John R / Perry, Justin J / Dean, John R

PloS one

2023 Volume 18, Issue 11, Page(s) e0294184

Abstract: The flowering stage of oilseed rape (Brassica napus L.) is of vital interest in precision agriculture. It has been shown that data describing the flower production of oilseed rape (OSR), at stage 3, in spring can be used to predict seed yield at harvest. ...

Abstract	The flowering stage of oilseed rape (Brassica napus L.) is of vital interest in precision agriculture. It has been shown that data describing the flower production of oilseed rape (OSR), at stage 3, in spring can be used to predict seed yield at harvest. Traditional field-based techniques for assessing OSR flowers are based on a visual assessment which is subjective and time consuming. However, a high throughput phenotyping technique, using an unmanned aerial vehicle (UAV) with multispectral image (MSI) camera, was used to investigate the growth stages of OSR (in terms of crop height) and to quantify its flower production. A simplified approach using a normalised difference yellowness index (NDYI) was coupled with an iso-cluster classification method to quantify the number of OSR flower pixels and incorporate the data into an OSR seed yield estimation. The estimated OSR seed yield showed strong correlation with the actual OSR seed yield (R2 = 0.86), as determined using in-situ sensors mounted on the combine harvester. Also, using our approach allowed the variation in crop height to be assessed across all growing stages; the maximum crop height of 1.35 m OSR was observed at the flowering stage. This methodology is proposed for effectively predicting seed yield 3 months prior to harvesting.
MeSH term(s)	Brassica napus ; Unmanned Aerial Devices ; Agriculture ; Flowers ; Seeds
Language	English
Publishing date	2023-11-10
Publishing country	United States
Document type	Journal Article
ZDB-ID	2267670-3
ISSN	1932-6203 ; 1932-6203
ISSN (online)	1932-6203
ISSN	1932-6203
DOI	10.1371/journal.pone.0294184
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Article ; Online: Impact of vented and condenser tumble dryers on waterborne and airborne microfiber pollution.

Cummins, Amber M / Malekpour, Adam K / Smith, Andrew J / Lonsdale, Suzanne / Dean, John R / Lant, Neil J

PloS one

2023 Volume 18, Issue 5, Page(s) e0285548

Abstract: Laundering of textiles is a significant source of waterborne microfiber pollution, and solutions are now being sought to mitigate this issue including improvements in clothing technology and integration of filtration systems into washing machines. Vented ...

Abstract	Laundering of textiles is a significant source of waterborne microfiber pollution, and solutions are now being sought to mitigate this issue including improvements in clothing technology and integration of filtration systems into washing machines. Vented tumble dryers are a potential source of airborne microfiber pollution, as their built-in lint filtration systems have been found to be inefficient with significant quantities of textile microfibers being released to the external environment through their exhaust air ducts. The present study is the first to evaluate the impact of condenser dryers, finding that they are significant contributors to waterborne microfiber pollution from the lint filter (if users clean this with water), the condenser and the condensed water. Microfiber release from drying of real consumer loads in condenser and vented tumble dryers was compared, finding that real loads release surprisingly high levels of microfibers (total 341.5 ± 126.0 ppm for those dried in a condenser dryer and 256.0 ± 74.2 ppm for those dried in a vented dryer), similar in quantity to microfibers produced during the first highly-shedding drying cycle of a new T-shirt load (total 321.4 ± 11.2 ppm) in a condenser dryer. Vented dryers were found to be significant contributors to waterborne microfiber pollution if consumers clean the lint filter with water in accordance with some published appliance usage instructions, as most (86.1 ± 5.5% for the real consumer loads tested) of the microfibers generated during vented tumble drying were collected on the lint filter. Therefore, tumble dryers are a significant source of waterborne and (for vented dryers) airborne microfiber pollution. While reducing the pore size of tumble dryer lint filters and instructing consumers to dispose of fibers collected on lint filters as municipal solid waste could help reduce the issue, more sophisticated engineering solutions will likely be required to achieve a more comprehensive solution.
MeSH term(s)	Environmental Pollution ; Desiccation ; Engineering ; Solid Waste ; Water
Chemical Substances	Solid Waste ; Water (059QF0KO0R)
Language	English
Publishing date	2023-05-24
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2267670-3
ISSN	1932-6203 ; 1932-6203
ISSN (online)	1932-6203
ISSN	1932-6203
DOI	10.1371/journal.pone.0285548
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Article ; Online: Plasma-Induced Changes in the Metabolome Following Vistula Tart Cherry Consumption.

Squires, Emma / Walshe, Ian H / Cheung, William / Bowerbank, Samantha L / Dean, John R / Wood, Jacob / McHugh, Malachy P / Plattner, Stephan / Howatson, Glyn

Nutrients

2024 Volume 16, Issue 7

Abstract: Evidence suggests that tart cherry (TC) supplementation has beneficial effects on health indices and recovery following strenuous exercise. However, little is known about the mechanisms and how TC might modulate the human metabolome. The aim of this ... ...

Abstract	Evidence suggests that tart cherry (TC) supplementation has beneficial effects on health indices and recovery following strenuous exercise. However, little is known about the mechanisms and how TC might modulate the human metabolome. The aim of this study was to evaluate the influence of an acute high- and low-dose of Vistula TC supplementation on the metabolomic profile in humans. In a randomised, double-blind, placebo controlled, cross-over design, 12 healthy participants (nine male and three female; mean ± SD age, stature, and mass were 29 ± 7 years old, 1.75 ± 0.1 m, and 77.3 ± 10.5 kg, respectively) visited the laboratory on three separate occasions (high dose; HI, low dose; LO, or placebo), separated by at least seven days. After an overnight fast, a baseline venous blood sample was taken, followed by consumption of a standardised breakfast and dose conditions (HI, LO, or placebo). Subsequent blood draws were taken 1, 2, 3, 5, and 8 h post consumption. Following sample preparation, an untargeted metabolomics approach was adopted, and the extracts analysed by LCMS/MS. When all time points were collated, a principal component analysis showed a significant difference between the conditions (
MeSH term(s)	Humans ; Female ; Male ; Young Adult ; Adult ; Prunus avium ; Metabolome ; Metabolomics ; Body Height ; Breakfast
Language	English
Publishing date	2024-04-01
Publishing country	Switzerland
Document type	Randomized Controlled Trial ; Journal Article
ZDB-ID	2518386-2
ISSN	2072-6643 ; 2072-6643
ISSN (online)	2072-6643
ISSN	2072-6643
DOI	10.3390/nu16071023
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Article ; Online: A direct comparison of liquid chromatography-mass spectrometry with clinical routine testing immunoassay methods for the detection and quantification of thyroid hormones in blood serum.

Bowerbank, Samantha L / Carlin, Michelle G / Dean, John R

Analytical and bioanalytical chemistry

2019 Volume 411, Issue 13, Page(s) 2839–2853

Abstract: A new and improved method was developed for the determination and quantification of four "free" thyroid hormones (i.e. 3,5-diiodothyronine (T2), 3,3',5-triiodothyronine (T3), 3,3',5'-triiodothyrone (rT3) and 3,5,3',5'-tetraiodothyronine (T4)) in human ... ...

Abstract	A new and improved method was developed for the determination and quantification of four "free" thyroid hormones (i.e. 3,5-diiodothyronine (T2), 3,3',5-triiodothyronine (T3), 3,3',5'-triiodothyrone (rT3) and 3,5,3',5'-tetraiodothyronine (T4)) in human serum by low- and high-resolution liquid chromatography-mass spectrometry (LC-MS). Several sample preparation strategies were investigated to obtain matrix-independent results. These strategies included solid phase extraction and matrix dilution. The developed analytical methods were then directly compared, in a blind study using patient-derived human blood serum samples, to the current clinical routine testing methods, i.e. electrochemiluminescence immunoassay and enzyme-linked immunosorbent assay. Chromatographic separation was achieved on a pentafluorophenyl (F5) column with an isocratic method of 30% aqueous phase, 70% organic phase where mobile phase A is 0.1% formic acid in water (pH 4) and mobile phase B is 0.1% formic acid in methanol (pH 4) (v/v). The high-resolution LC-MS was able to give a significant improvement in sensitivity with limits of quantification of 0.002 to 0.008 pmol/L for all four "free" thyroid hormones, as well as reduced sample preparation, making this the preferred method. However, the increase in capital cost may be beyond the capabilities of some laboratories. The LC-MS methods allow for the analysis of "free" thyroid hormones to be carried out in a significantly reduced analysis time. Clinical sample analysis showed that there was no statistical difference between the results obtained by ECLIA/ELISA and both LC-MS methods. Graphical abstract.
MeSH term(s)	Animals ; Chromatography, High Pressure Liquid/methods ; Horses ; Humans ; Immunoassay/methods ; Limit of Detection ; Mass Spectrometry/methods ; Thyroid Hormones/blood
Chemical Substances	Thyroid Hormones
Language	English
Publishing date	2019-05-11
Publishing country	Germany
Document type	Comparative Study ; Journal Article ; Validation Study
ZDB-ID	201093-8
ISSN	1618-2650 ; 0016-1152 ; 0372-7920
ISSN (online)	1618-2650
ISSN	0016-1152 ; 0372-7920
DOI	10.1007/s00216-019-01724-2
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Article ; Online: A critical evaluation of the use and 'misuse' of As and Pb bioaccessibility data in human health risk assessments.

Dean, John R / Amaibi, Patrick M / Okorie, Alexander / Entwistle, Jane A

Environmental research

2020 Volume 189, Page(s) 109915

Abstract: With the now widescale reporting of oral bioaccessibility data at contaminated sites, following our investigation of three sites (one public open space and two residential) for As and Pb contamination, a critical evaluation of the application and utility ...

Abstract	With the now widescale reporting of oral bioaccessibility data at contaminated sites, following our investigation of three sites (one public open space and two residential) for As and Pb contamination, a critical evaluation of the application and utility of such bioaccessibility testing was undertaken to better inform future use. Mean As and Pb soil levels across the sites varied between 12.5 and 24,900 mg/kg and 149-5930 mg/kg, respectively. Using the Unified Bioaccessibility Method (UBM) for in vitro bioaccessibility testing the highest bioaccessible concentrations were identified in the gastric phase. At site 1, a residential urban garden site the maximum bioaccessible As was 50.2% while the maximum bioaccessible Pb was 64.8%; similarly in site 2, also a residential urban garden site the maximum bioaccessible As was 38.72% while the maximum bioaccessible Pb was 66.0%. However, at site 3, a public open space site, the maximum bioaccessible As was 29.7% while the maximum bioaccessible Pb was 38.4%. Using the appropriate soil screening values and recommended statistical testing, we highlight that the use of bioaccessibility testing was unnecessary at sites 1 and 2 (residential urban garden sites), while at site 3 the value of oral bioaccessibility testing is highlighted as part of a 'lines of evidence approach' to support the site's specific risk assessment. We need to move away from the uncritical, blanket application of oral bioacessibility testing and strategically target where the results of these data add real value to site determination.
MeSH term(s)	Biological Availability ; Environment ; Humans ; Lead ; Risk Assessment ; Soil ; Soil Pollutants/analysis
Chemical Substances	Soil ; Soil Pollutants ; Lead (2P299V784P)
Language	English
Publishing date	2020-07-11
Publishing country	Netherlands
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	205699-9
ISSN	1096-0953 ; 0013-9351
ISSN (online)	1096-0953
ISSN	0013-9351
DOI	10.1016/j.envres.2020.109915
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