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WTS Database
The subject of interest is:
waterpipe, water-pipe, nargile, narghile, arguileh, arguile, shisha, sheesha, chichi, hubble bubble, hubbly bubbly, goza, hookah, bong
| Title Sort ascending | Pub Year | Author | SearchLink |
|---|---|---|---|
| Managing electromagnetic fields from residential electrode grounding systems: a predecision analysis. | 1996 | von Winterfeldt, D., University of Southern California, Institute of Safety and Systems Management, University Park, Los Angeles, USA. | Read more... |
|
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Bioelectromagnetics
Periodical, Abbrev.
Bioelectromagnetics
Pub Date Free Form
/
Volume
17
Issue
2
Start Page
71
Other Pages
84
Notes
Place of Publication
ISSN/ISBN
0197-8462
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
Several epidemiological studies have linked exposure to electromagnetic fields (EMFs) with health effects, including leukemia and brain cancer, but the research is still inconclusive. In particular, no clear causal mechanism has been identified by which EMFs may promote cancers. Nevertheless, the concerns raised by the positive epidemiological studies have led to increasing efforts to reduce EMFs from a number of sources. One source of EMFs are home grounding systems that are connected through water pipes in homes to water mains. This paper analyzes whether home owners who are concerned about electromagnetic fields exposure from home grounding systems should take any action to reduce fields. Assuming that the grounding system produces elevated magnetic fields (e.g., 2-3 mG or higher), this study investigates several readily available alternatives and evaluates them with respect to five criteria: risk reduction, cost, fire risk increase, worker risk, and electrical shock risk. Because of the lack of conclusive evidence about an EMF-cancer relationship, this study uses a parameterized approach that makes conditional estimates of health risk depending on future research outcomes and on the nature of the EMF/health effects relationship. This type of analysis, which is called predecision analysis because of its preliminary nature, is therefore highly dependent on a set of assumptions. Nevertheless, this predecision analysis had some fairly clear results. First, waiting for more research or taking a fairly inexpensive corrective action (insulating the water pipe to reduce ground current flow) seem to be the main contenders for the best decision for many different assumptions and parameters. Second, the choice between these two actions is very sensitive to variations in assumptions and parameters. Homeowners who accept the base-case assumptions and parameters of this study should prefer to wait. If any of the base-case parameters are changed to more pessimistic estimates or if psychological concerns (like worry and regret) are considered, then the best action is to insulate the pipe to reduce the current flow through the water pipes.
Descriptors
article, building material, decision support system, electric injury, electricity, electrode, electromagnetic field, fire, housing, human, leukemia, probability, risk factor, sanitation, sensitivity and specificity
Links
Book Title
Database
MEDLINE
Publisher
Data Source
Embase
Authors
von Winterfeldt,D., Trauger,T.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
|
|||
| Management strategy of emergencies and events in the monitoring of water distribution in Paris | 2003 | Montiel, F., Soc. Anon. de Gestion l'Eau Paris, 75014 Paris, France | Read more... |
|
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Water Science and Technology: Water Supply
Periodical, Abbrev.
Water Sc.Technol.Water Supply
Pub Date Free Form
2003/
Volume
3
Issue
2-Jan
Start Page
483
Other Pages
487
Notes
Place of Publication
ISSN/ISBN
1606-9749
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
For water distributors, management of emergencies and the follow-up of events in real time represent an essential aspect of their work. Proper management of this information makes for optimization of its use and enables one to avoid a large number of problems regarding water supply thanks to improved reactivity and more precisely-focused action. Since 1992, Sagep (Société Anonyme de Gestion de l'Eau de Paris) to whom the City of Paris has entrusted responsibility for its water supply, has equipped itself with a computerized real-time monitoring system. Initially, this system processed 5,000 pieces of real-time information, which permitted monitoring of the 1,600 km of drinking water pipes and made possible distribution of the 650,000 m3 of drinking water consumed daily by Parisians. In 1996, given the enormous progress achieved with regard to information systems and measuring devices installed in the pipe networks, the Scada at Sagep was modernized. This made possible the integration of the fresh information necessitated by developments in the supply system of the City of Paris, plant renovation, new sensors, the traceability of events and water quality follow-up. These developments led to the integration and management of 17,500 pieces of real-time information, over three-quarters of which are made up of emergencies or events. It seems clear that it is impossible to manage such a mass of real-time information in the absence of a rigorous processing strategy. To exploit this set of data in optimal fashion, Sagep has developed a system of management of emergencies based on three thrusts: identification, qualification and processing.
Descriptors
drinking water, automation, conference paper, emergency, France, information system, life event, process monitoring, technology, water management, water supply
Links
Book Title
Database
Embase
Publisher
Data Source
Embase
Authors
Montiel,F., Coutelan,J.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
|
|||
| Make your own cigarettes: toxicant exposure, smoking topography, and subjective effects | 2014 | Battelle Memorial Institute, Human Exposure Assessment Laboratory (HEAL), Baltimore, Maryland. koszowskib@battelle.org.; Battelle Memorial Institute, Human Exposure Assessment Laboratory (HEAL), Baltimore, Maryland.; Battelle Memorial Institute, Human Exp | Read more... |
|
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology
Periodical, Abbrev.
Cancer Epidemiol.Biomarkers Prev.
Pub Date Free Form
Sep
Volume
23
Issue
9
Start Page
1793
Other Pages
1803
Notes
LR: 20151119; CI: (c)2014; GR: R01 CA138973/CA/NCI NIH HHS/United States; GR: R01CA138973-01/CA/NCI NIH HHS/United States; JID: 9200608; 6M3C89ZY6R (Nicotine); NIHMS605518; OID: NLM: NIHMS605518; OID: NLM: PMC4154992; 2014/06/12 [aheadofprint]; ppublish
Place of Publication
United States
ISSN/ISBN
1538-7755; 1055-9965
Accession Number
PMID: 24925675
Language
eng
SubFile
Journal Article; Randomized Controlled Trial; Research Support, N.I.H., Extramural; IM
DOI
10.1158/1055-9965.EPI-14-0280 [doi]
Output Language
Unknown(0)
PMID
24925675
Abstract
BACKGROUND: Despite considerable use of make your own (MYO) cigarettes worldwide and increasing use in the United States, relatively little is known about how these cigarettes are smoked and the resultant toxicant exposure. METHODS: In a laboratory study, we compared two types of MYO cigarettes-roll your own (RYO) and personal machine made (PMM)-with factory-made (FM) cigarettes in three groups of smokers who exclusively used RYO (n = 34), PMM (n = 23), or FM (n = 20). Within each group, cigarettes were smoked in three conditions: (i) after confirmed overnight tobacco abstinence; (ii) in an intense smoking paradigm; and (iii) without restrictions. All cigarettes were smoked ad lib through a smoking topography unit. RESULTS: Plasma nicotine significantly increased after cigarettes in all conditions except PMM in the intense smoking paradigm. Puff volume, puff duration, total puff volume, and puff velocity did not differ between cigarette types but the puffs per cigarette and time to smoke were significantly smaller for RYO compared with PMM and FM. Regardless of the cigarette, participants consumed the first three puffs more vigorously than the last three puffs. CONCLUSIONS: Despite the belief of many of their consumers, smoking MYO cigarettes is not a safe alternative to FM cigarettes. Like FM, MYO cigarettes expose their users to harmful constituents of tobacco smoke. Despite differences in size and design their puffing profiles are remarkably similar. IMPACT: These data are relevant to health and regulatory considerations on the MYO cigarettes.
Descriptors
Links
Book Title
Database
Publisher
American Association for Cancer Research
Data Source
Authors
Koszowski,B., Rosenberry,Z.R., Viray,L.C., Potts,J.L., Pickworth,W.B.
Original/Translated Title
URL
Date of Electronic
20140612
PMCID
PMC4154992
Editors
|
|||
| Mainstream smoke of the waterpipe: does this environmental matrix reveal as significant source of toxic compounds? | 2011 | German Federal Institute for Risk Assessment (BfR), Department of Product Safety, Thielallee 88-92, 14195 Berlin, Germany. Jens.Schubert@bfr.bund.de | Read more... |
|
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Toxicology letters
Periodical, Abbrev.
Toxicol.Lett.
Pub Date Free Form
10-Sep
Volume
205
Issue
3
Start Page
279
Other Pages
284
Notes
LR: 20151119; CI: Copyright (c) 2011; JID: 7709027; 0 (4-(methylnitrosamino)-1-(3-pyridyl)-1-butan-1-ol); 0 (Carcinogens); 0 (Hygroscopic Agents); 0 (Nitrosamines); 0 (Polycyclic Hydrocarbons, Aromatic); 0 (Pyridines); 0 (Smoke); 059QF0KO0R (Water); 3417W
Place of Publication
Netherlands
ISSN/ISBN
1879-3169; 0378-4274
Accession Number
PMID: 21712083
Language
eng
SubFile
Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1016/j.toxlet.2011.06.017 [doi]
Output Language
Unknown(0)
PMID
21712083
Abstract
In recent years the number of waterpipe smokers has increased substantially worldwide. Here we report on the concentrations of tobacco-specific nitrosamines (TSNAs) and polycyclic aromatic hydrocarbons (PAHs) in waterpipe smoke and the analysis of selected biomarkers indicative for the body burden in waterpipe users. We further identify high amounts of unburned humectants (glycerol and propylene glycol) in the waterpipe smoke as main part of the so-called "tar" fraction. These results give cause for serious concern. For standardization we applied a machine smoking protocol. Smoke was collected on glass fiber filters and analyzed for nicotine, water, humectants, TSNAs, and PAHs. In addition, we determined carbon monoxide and found high amounts in the smoke being causative for high levels of carboxyhemoglobin (COHb) in the blood of smokers. In comparison to the reference cigarette 3R4F, the nicotine contents were 10-times higher, but TSNA levels were found lower in waterpipe smoke. This finding explained the low levels of 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol detected in the urine of waterpipe smokers. Finally, the levels of benzo[a]pyrene were three times higher in waterpipe smoke compared to the reference cigarette. Altogether, the data presented in this study point to the health hazards associated with the consumption of waterpipes.
Descriptors
Links
Book Title
Database
Publisher
Elsevier Ireland Ltd
Data Source
Authors
Schubert,J., Hahn,J., Dettbarn,G., Seidel,A., Luch,A., Schulz,T.G.
Original/Translated Title
URL
Date of Electronic
20110625
PMCID
Editors
|
|||
| Main microorganisms involved in the fermentation of Ugandan ghee | 2009 | Laboratory of Applied Microbiology, Graduate School of Agriculture, Hokkaido University, Sapporo, Japan. marongol@hotmail.com | Read more... |
|
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
International journal of food microbiology
Periodical, Abbrev.
Int.J.Food Microbiol.
Pub Date Free Form
15-Aug
Volume
133
Issue
3
Start Page
286
Other Pages
291
Notes
JID: 8412849; 0 (DNA, Bacterial); 0 (DNA, Fungal); 0 (Dietary Fats); 8029-34-3 (Butter); 2009/02/09 [received]; 2009/06/06 [revised]; 2009/06/08 [accepted]; 2009/06/17 [aheadofprint]; ppublish
Place of Publication
Netherlands
ISSN/ISBN
1879-3460; 0168-1605
Accession Number
PMID: 19577815
Language
eng
SubFile
Journal Article; IM
DOI
10.1016/j.ijfoodmicro.2009.06.003 [doi]
Output Language
Unknown(0)
PMID
19577815
Abstract
Ghee is widely produced from a traditional fermented butter-like product named mashita in western Uganda. However, no detailed studies have been done to identify the microorganisms involved in mashita fermentation. The aim of this study was to identify the microorganisms present at the end of mashita ripening using culture-dependent and culture-independent techniques. The most commonly identified species of lactic acid bacteria (LAB) in mashita using culture-dependent techniques were Lactobacillus paracasei, Lactobacillus helveticus, Lactobacillus plantarum and Lactobacillus perolens constituting 37.3%, 10.1%, 8.1% and 7.7% of total bacterial colonies isolated respectively. L. paracasei was the only bacterial species identified in all mashita samples by culture-dependent technique. Two of the four most commonly isolated LAB species (L. helveticus and L. plantarum) were also identified in mashita by a culture-independent method (PCR-DGGE). Other main LAB species identified in mashita by PCR-DGGE were Bifidobacterium sp., Enterococcus faecium, Lactobacillus brevis, Lactobacillus acetotolerans, Lactobacillus sp., Lactococcus raffinolactis, Lactococcus lactis subsp. lactis and Streptococcus salivarius. The main species of acetic acid bacteria (AAB) identified in the mashita using PCR-DGGE method were Acetobacter aceti, Acetobacter lovaniensis, Acetobacter orientalis and Acetobacter pasteurianus. PCR-DGGE identification of yeasts showed that Brettanomyces custersianus, Candida silvae, Geotrichum sp., Issatchenkia occidentalis, Issatchenkia orientalis, Kluyveromyces marxianus, Saccharomyces cerevisiae, and Trichosporon asahii were main yeast species in mashita. A. lovaniensis, A. aceti, and I. orientalis were identified in all the six mashita samples analyzed using PCR-DGGE method. Other microbial species were only found in some samples. These results indicate that LAB and yeasts, as in similar fermentation products, but also AAB are main microbial groups involved in mashita fermentation.
Descriptors
Bacteria/genetics/isolation & purification, Bacteriological Techniques/methods, Butter/microbiology, DNA, Bacterial, DNA, Fungal, Dietary Fats, Fermentation, Food Microbiology, Lactobacillus/genetics/isolation & purification, Sequence Analysis, DNA, Uganda, Yeasts/genetics/isolation & purification
Links
Book Title
Database
Publisher
Data Source
Authors
Ongol,M. P., Asano,K.
Original/Translated Title
URL
Date of Electronic
20090617
PMCID
Editors
|
|||
| Magnetic solid-phase extraction based on magnetic multi-walled carbon nanotubes for the determination of polycyclic aromatic hydrocarbons in grilled meat samples | 2013 | Environmental Health Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. | Read more... |
|
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Talanta
Periodical, Abbrev.
Talanta
Pub Date Free Form
15-Oct
Volume
115
Issue
Start Page
957
Other Pages
965
Notes
CI: Copyright (c) 2013; JID: 2984816R; 0 (Magnetite Nanoparticles); 0 (Nanotubes, Carbon); 0 (Polycyclic Hydrocarbons, Aromatic); 0 (Water Pollutants, Chemical); OTO: NOTNLM; 2013/05/04 [received]; 2013/07/02 [revised]; 2013/07/04 [accepted]; 2013/07/09 [
Place of Publication
Netherlands
ISSN/ISBN
1873-3573; 0039-9140
Accession Number
PMID: 24054688
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1016/j.talanta.2013.07.005 [doi]
Output Language
Unknown(0)
PMID
24054688
Abstract
A sensitive and reliable method for determination of polycyclic aromatic hydrocarbons (PAHs) in grilled meat samples was developed and validated. The method is based on magnetic solid phase extraction (MSPE) and GC-MS analysis. Magnetic carbon nanotubes (MCNTs) which have excellent adsorption capabilities, were used as adsorbent to extract PAHs, an important class of carcinogens, from meat samples. To obtain the best extraction yields, the influencing factors, including primary extraction conditions, the amount of adsorbent, adsorption and desorption time, salt addition and desorption solvent were investigated in detail. Under optimized conditions, the LODs and LOQs achieved were in the range of 0.035-0.100 and 0.075-0.200 microg Kg(-1) respectively. The calibration curves were linear (r(2) >/= 0.988) over the concentration ranges from 0.100 microg Kg(-1) to 250 microg Kg(-1) The relative standard deviations (RSDs) obtained by carrying out intra- and inter-day precision studies were less than 13.7% and 13.9%, respectively which confirms reproducibility of the method. In addition, the recoveries of analyzed PAHs ranged from 81.3% to 96.7% with the RSDs less than 12.7 %. Finally, the established MSPE-GC-MS method was successfully applied to determine PAHs in charcoal grilled/barbecued meat samples. benzo[a]anthracene, benzo[b]fluoranthene, Benzo[a]pyrene and chrysene were detected in beef, lamb and chicken meat samples with the mean cumulative concentration of 4.000, 3.414 and 0.931 microg Kg(-1) respectively. Taken together, the MSPE-GC-MS method developed in current study provides a new option for the determination of PAHs in grilled/barbecued meat samples.
Descriptors
Links
Book Title
Database
Publisher
Elsevier B.V
Data Source
Authors
Moazzen,M., Ahmadkhaniha,R., Gorji,M.E., Yunesian,M., Rastkari,N.
Original/Translated Title
URL
Date of Electronic
20130709
PMCID
Editors
|
|||
| Magnetic solid phase extraction and static headspace gas chromatography-mass spectrometry method for the analysis of polycyclic aromatic hydrocarbons | 2016 | State Key Laboratory of Chemo/Biosensing & Chemometrics, College of Chemistry & Chemical Engineering, Hunan University, Changsha 410082, China.; Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Traditional Chinese | Read more... |
|
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Journal of chromatography.A
Periodical, Abbrev.
J.Chromatogr.A
Pub Date Free Form
15-Jan
Volume
1429
Issue
Start Page
97
Other Pages
106
Notes
CI: Copyright (c) 2015; JID: 9318488; 0 (Drinking Water); 0 (Polycyclic Hydrocarbons, Aromatic); 0 (Solvents); 0 (Water Pollutants, Chemical); OTO: NOTNLM; 2015/07/01 [received]; 2015/12/01 [revised]; 2015/12/10 [accepted]; 2015/12/14 [aheadofprint]; ppub
Place of Publication
Netherlands
ISSN/ISBN
1873-3778; 0021-9673
Accession Number
PMID: 26724892
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1016/j.chroma.2015.12.032 [doi]
Output Language
Unknown(0)
PMID
26724892
Abstract
A magnetic solid phase extraction (MSPE) protocol combining a static headspace gas chromatography coupled to mass spectrometry (HS-GC-MS) method has been developed for extraction, and determination of 16 polycyclic aromatic hydrocarbons (PAHs) in drinking water samples. Magnetic nanoparticles (MNPs) were coated with 3-aminopropyltriethoxysilane and modified by cholesterol chloroformate. Transmission electron microscope, vibrating sample magnetometer, Fourier transform infrared spectrometry and X-ray photoelectron spectroscopy were used to characterize the cholesterol-functionalized sorbents, and the main parameters affecting the extraction as well as HS sampling, such as sorbent amount, extraction time, oven temperature and equilibration time have been investigated and established. Combination with HS sampling, the MSPE procedure was simple, fast and environmentally friendly, without need of any organic solvent. Method validation proved the feasibility of the developed sorbents for the quantitation of the investigated analytes at trace levels obtaining the limit of detection (S/N=3) ranging from 0.20 to 7.8 ng/L. Good values for intra and inter-day precision were obtained (RSDs = 9.9%). The proposed method was successfully applied to drinking water samples.
Descriptors
Links
Book Title
Database
Publisher
Elsevier B.V
Data Source
Authors
Cai,Y., Yan,Z., Wang,L., NguyenVan,M., Cai,Q.
Original/Translated Title
URL
Date of Electronic
20151214
PMCID
Editors
|
|||
| Magnetic solid phase extraction and gas chromatography-mass spectrometrical analysis of sixteen polycyclic aromatic hydrocarbons | 2015 | State Key Laboratory of Chemo/Biosensing & Chemometrics, College of Chemistry & Chemical Engineering, Hunan University, Changsha 410082, China.; Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Traditional Chinese | Read more... |
|
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Journal of chromatography.A
Periodical, Abbrev.
J.Chromatogr.A
Pub Date Free Form
7-Aug
Volume
1406
Issue
Start Page
40
Other Pages
47
Notes
CI: Copyright (c) 2015; JID: 9318488; 0 (Polycyclic Hydrocarbons, Aromatic); 0 (Water Pollutants, Chemical); 059QF0KO0R (Water); 7631-86-9 (Silicon Dioxide); OTO: NOTNLM; 2015/04/01 [received]; 2015/06/08 [revised]; 2015/06/10 [accepted]; 2015/06/20 [ahea
Place of Publication
Netherlands
ISSN/ISBN
1873-3778; 0021-9673
Accession Number
PMID: 26122856
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1016/j.chroma.2015.06.024 [doi]
Output Language
Unknown(0)
PMID
26122856
Abstract
Fluorenyl functionalized superparamagnetic core/shell magnetic nanoparticles (MNPs, Fe3O4@SiO2@Flu) were prepared and characterized by transmission electron microscope, X-ray diffraction and infrared spectroscopy. The MNPs having an average diameter of 200nm were then used as solid-phase extraction sorbent for the determination of 16 priority pollutants polycyclic aromatic hydrocarbons (PAHs) in water samples designated by United States Environmental Protection Agency (U.S. EPA). The main influencing parameters, including sorbent amount, desorption solvent, sample volume and extraction time were optimized. Analyses were performed on gas chromatography-mass spectrometry (GC-MS) using selected ion monitoring (SIM) mode. Method validation proved the feasibility of the developed sorbents for the quantitation of the investigated analytes at trace levels. Limit of detection ranging from 0.5 to 4.0ng/L were obtained. The repeatability was investigated by evaluating the intra- and inter-day precisions with relative standard deviations (RSDs) lower than 13.1%. Finally, the proposed method was successfully applied for the determination of PAHs in water samples with the recoveries in the range of 96.0-106.7%.
Descriptors
Links
Book Title
Database
Publisher
Elsevier B.V
Data Source
Authors
Cai,Y., Yan,Z., NguyenVan,M., Wang,L., Cai,Q.
Original/Translated Title
URL
Date of Electronic
20150620
PMCID
Editors
|
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| Magnetic resonance findings in scuba diving-related spinal cord decompression sickness | 1997 | Institute of Radiology P. Cignolini, University of Palermo, Italy. | Read more... |
|
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Magma (New York, N.Y.)
Periodical, Abbrev.
MAGMA
Pub Date Free Form
Jun
Volume
5
Issue
2
Start Page
111
Other Pages
115
Notes
LR: 20041117; JID: 9310752; ppublish
Place of Publication
UNITED STATES
ISSN/ISBN
0968-5243; 0968-5243
Accession Number
PMID: 9268074
Language
eng
SubFile
Case Reports; Journal Article; IM
DOI
Output Language
Unknown(0)
PMID
9268074
Abstract
Scuba diving is associated with risk of severe decompression sickness (DCS type II), which results from rapid reduction of the environmental pressure sufficient to cause the formation into tissue or blood of inert gas bubbles previously loaded within tissues as a soluble phase. DCS type II constitutes a unique subset of ischemic insults to the central nervous system (CNS) with primarily involvement of the spinal cord. Ten patients with diving-related barotrauma underwent neurologic examination. Two of them presented progressive sensory and motor loss in the extremities at admission and were presumed affected by spinal cord DCS. Magnetic resonance imaging (MRI) demonstrated abnormalities in the white-matter tracts of the spinal cord in these patients, in each case corresponding to an area of the cord believed to be clinically involved. After a course of therapeutic recompressions, one patient was able to stand and walk a short distance, and MRI revealed a decreased extension of areas of spinal cord abnormalities. MRI has proved to be reliable in the detection of pathologic changes of spinal cord decompression sickness that were previously undetectable by other neuroimaging methods and also has proved to be useful in the follow-up during therapeutic hyperbaric recompressions.
Descriptors
Adolescent, Adult, Decompression Sickness/diagnosis/etiology/pathology, Diving/adverse effects, Female, Humans, Magnetic Resonance Imaging/methods, Male, Spinal Cord Diseases/diagnosis/etiology/pathology
Links
Book Title
Database
Publisher
Data Source
Authors
Sparacia,G., Banco,A., Sparacia,B., Midiri,M., Brancatelli,G., Accardi,M., Lagalla,R.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
|
|||
| Magnetic nanoparticles with hydrophobicity and hydrophilicity for solid-phase extraction of polycyclic aromatic hydrocarbons from environmental water samples | 2015 | Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan 430030, China.; Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan 430030, China.; Tongji School of Pharmacy, Huazhong University of Science and T | Read more... |
|
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Journal of chromatography.A
Periodical, Abbrev.
J.Chromatogr.A
Pub Date Free Form
11-Sep
Volume
1411
Issue
Start Page
9
Other Pages
16
Notes
CI: Copyright (c) 2015; JID: 9318488; 0 (Magnetite Nanoparticles); 0 (Polycyclic Hydrocarbons, Aromatic); 0 (Water Pollutants, Chemical); OTO: NOTNLM; 2015/04/16 [received]; 2015/07/28 [revised]; 2015/07/31 [accepted]; 2015/08/01 [aheadofprint]; ppublish
Place of Publication
Netherlands
ISSN/ISBN
1873-3778; 0021-9673
Accession Number
PMID: 26260841
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1016/j.chroma.2015.07.104 [doi]
Output Language
Unknown(0)
PMID
26260841
Abstract
Magnetic nanoparticles (MNPs) featured with divinylbenzene (DVB) and sulfonate functionalities (Fe3O4-DVB-SO3(-)) were prepared via "thiol-ene" click chemistry. The hydrophobic DVB moieties were dedicated for extraction while the hydrophilic sulfonate groups were designed for dispersing the MNPs in aqueous sample solution. Thus, the specially designed material could ensure operational convenience and improve reproducibility during extraction. The application of the material was demonstrated by the extraction of polycyclic aromatic hydrocarbons (PAHs) from environmental water samples followed by gas chromatography-mass spectrometric analysis. The main factors influencing the extraction, including the type of the desorption solvent, the agitation mode, the amount of MNPs, extraction and desorption time and salt addition in sample solution, were investigated in detail. Under the optimized conditions, the proposed method showed satisfactory reproducibility with intra-day and inter-day relative standard deviations less than 16.5% and 21.2%, and low limits of detection of 1.1pgmL(-1), 0.8pgmL(-1), 1.1pgmL(-1), 1.4pgmL(-1), 0.6pgmL(-1), 2.1pgmL(-1) and 0.7pgmL(-1) for naphthalene, acenaphthene, fluorine, phenanthrene, anthracene, fluoranthene and pyrene, respectively. The developed method was also successfully used for determination of the PAHs in genuine lake and river environmental water samples by standard addition method. All the studied PAHs were detected in these waters with comparable results by the standard liquid-liquid extraction method. The developed MNPs with dual property of hydrophobicity and hydrophilicity were suitable for the treatment of water samples. The magnetic solid phase extraction based on this material was reliable and convenient. It has great potential in the preconcentration of trace analytes in complex matrix.
Descriptors
Links
Book Title
Database
Publisher
Elsevier B.V
Data Source
Authors
Xue,S.W., Tang,M.Q., Xu,L., Shi,Z.G.
Original/Translated Title
URL
Date of Electronic
20150801
PMCID
Editors
|
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