Image
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 descending | Pub Year | Author | SearchLink |
|---|---|---|---|
| Short segment Barrett's esophagus and distal gastric intestinal metaplasia | 2006 | Department of Endoscopy and Pathology, "Hospital Nossa Senhora da Conceicao" and "Hospital de Clinicas", Porto Alegre, RS, Brazil. | Read more... |
|
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Arquivos de Gastroenterologia
Periodical, Abbrev.
Arq.Gastroenterol.
Pub Date Free Form
Apr-Jun
Volume
43
Issue
2
Start Page
117
Other Pages
120
Notes
JID: 15310600R; 2005/08/31 [received]; 2006/01/04 [accepted]; ppublish
Place of Publication
Brazil
ISSN/ISBN
0004-2803; 0004-2803
Accession Number
PMID: 17119666
Language
eng
SubFile
Journal Article; IM
DOI
S0004-28032006000200011 [pii]
Output Language
Unknown(0)
PMID
17119666
Abstract
BACKGROUND: Short segment Barrett's esophagus is defined by the presence of <3 cm of columnar-appearing mucosa in the distal esophagus with intestinal metaplasia on histophatological examination. Barrett's esophagus is a risk factor to develop adenocarcinoma of the esophagus. While Barrett's esophagus develops as a result of chronic gastroesophageal reflux disease, intestinal metaplasia in the gastric cardia is a consequence of chronic Helicobacter pylori infection and is associated with distal gastric intestinal metaplasia. It can be difficult to determine whether short-segment columnar epithelium with intestinal metaplasia are lining the esophagus (a condition called short segment Barrett's esophagus) or the proximal stomach (a condition called intestinal metaplasia of the gastric cardia). AIMS: To study the association of short segment Barrett's esophagus (length <3 cm) with gastric intestinal metaplasia (antrum or body) and infection by H. pylori. PATIENTS AND METHODS: Eight-nine patients with short segment columnar-appearing mucosa in the esophagus, length <3 cm, were studied. Symptoms of gastroesophageal reflux disease were recorded. Biopsies were obtained immediately below the squamous-columnar lining, from gastric antrum and gastric corpus for investigation of intestinal metaplasia and H. pylori. RESULTS: Forty-two from 89 (47.2%) patients were diagnosed with esophageal intestinal metaplasia by histopathology. The mean-age was significantly higher in the group with esophageal intestinal metaplasia. The two groups were similar in terms of gender (male: female), gastroesophageal reflux disease symptoms and H. pylori infection. Gastric intestinal metaplasia (antrum or body) was diagnosed in 21 from 42 (50.0%) patients in the group with esophageal intestinal metaplasia and 7 from 47 (14.9%) patients in the group with esophageal columnar appearing mucosa but without intestinal metaplasia. CONCLUSION: Intestinal metaplasia is a frequent finding in patients with <3 cm of columnar-appearing mucosa in the distal esophagus. In the present study, short segment intestinal metaplasia in the esophagus is associated with distal gastric intestinal metaplasia. Gastroesophageal reflux disease symptoms and H. pylori infection did not differ among the two groups studied.
Descriptors
Barrett Esophagus/complications/pathology, Biopsy, Cardia/pathology, Esophagoscopy, Female, Gastritis/microbiology/pathology, Gastroesophageal Reflux/complications/pathology, Helicobacter Infections/complications/pathology, Humans, Intestines/pathology, Male, Metaplasia/pathology, Middle Aged, Stomach/pathology
Links
Book Title
Database
Publisher
Data Source
Authors
Dietz,J., Chaves-E-Silva,S., Meurer,L., Sekine,S., de Souza,A. R., Meine,G. C.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
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| Short term effect of hubble-bubble smoking on voice | 2011 | Read more... | |
|
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
J Laryngol Otol
Periodical, Abbrev.
J.Laryngol.Otol.
Pub Date Free Form
Volume
125
Issue
5
Start Page
486
Other Pages
91
Notes
ID: 21281535
Place of Publication
ISSN/ISBN
Accession Number
Language
en
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
OBJECTIVE: To investigate the short term effect of hubble-bubble smoking on voice. STUDY DESIGN: Prospective study. MATERIAL: Eighteen non-dysphonic subjects (seven men and 11 women) with a history of hubble-bubble smoking and no history of cigarette smoking underwent acoustic analysis and laryngeal video-stroboscopic examination before and 30 minutes after hubble-bubble smoking. RESULTS: On laryngeal video-stroboscopy, none of the subjects had vocal fold erythema either before or after smoking. Five patients had mild vocal fold oedema both before and after smoking. After smoking, there was a slight increase in the number of subjects with thick mucus between the vocal folds (six, vs four before smoking) and with vocal fold vessel dilation (two, vs one before smoking). Acoustic analysis indicated a drop in habitual pitch, fundamental frequency and voice turbulence index after smoking, and an increase in noise-to-harmonics ratio. CONCLUSION: Even 30 minutes of hubble-bubble smoking can cause a drop in vocal pitch and an increase in laryngeal secretions and vocal fold vasodilation.
Descriptors
Smoking/adverse effects, Speech Acoustics, Vocal Cords/pathology, Voice Disorders/pathology, Voice Quality/drug effects, Adolescent, Adult, Edema/epidemiology, Edema/etiology, Equipment Design, Erythema/epidemiology, Erythema/etiology, Female, Health Knowledge, Attitudes, Practice, Humans, Male, Mucus, Pregnancy, Prospective Studies, Stroboscopy/methods, Vocal Cords/blood supply, Vocal Cords/physiopathology, Voice Disorders/diagnosis, Voice Disorders/etiology, Young Adult
Links
http://dx.doi.org/10.1017/S0022215110003051
Book Title
Database
MEDLINE; http://www.globalhealthlibrary.net/
Publisher
Data Source
Authors
Hamdan,A-L, Sibai,A., Mahfoud,L., Oubari,D., Ashkar,J., Fuleihan,N.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
|
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| Short- and medium-term efficacy of a Web-based computer-tailored nutrition education intervention for adults including cognitive and environmental feedback: randomized controlled trial | 2015 | Maastricht University, Department of Health Promotion, School for Public Health and Primary Care (CAPHRI), Maastricht, Netherlands. linda.springvloet@maastrichtuniversity.nl. | Read more... |
|
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Journal of medical Internet research
Periodical, Abbrev.
J.Med.Internet Res.
Pub Date Free Form
19-Jan
Volume
17
Issue
1
Start Page
e23
Other Pages
Notes
LR: 20151119; NTR/NTR3396; JID: 100959882; OID: NLM: PMC4319071; OTO: NOTNLM; 2014/09/03 [received]; 2014/12/10 [accepted]; 2014/11/12 [revised]; epublish
Place of Publication
Canada
ISSN/ISBN
1438-8871; 1438-8871
Accession Number
PMID: 25599828
Language
eng
SubFile
Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't; IM
DOI
10.2196/jmir.3837 [doi]
Output Language
Unknown(0)
PMID
25599828
Abstract
BACKGROUND: Web-based, computer-tailored nutrition education interventions can be effective in modifying self-reported dietary behaviors. Traditional computer-tailored programs primarily targeted individual cognitions (knowledge, awareness, attitude, self-efficacy). Tailoring on additional variables such as self-regulation processes and environmental-level factors (the home food environment arrangement and perception of availability and prices of healthy food products in supermarkets) may improve efficacy and effect sizes (ES) of Web-based computer-tailored nutrition education interventions. OBJECTIVE: This study evaluated the short- and medium-term efficacy and educational differences in efficacy of a cognitive and environmental feedback version of a Web-based computer-tailored nutrition education intervention on self-reported fruit, vegetable, high-energy snack, and saturated fat intake compared to generic nutrition information in the total sample and among participants who did not comply with dietary guidelines (the risk groups). METHODS: A randomized controlled trial was conducted with a basic (tailored intervention targeting individual cognition and self-regulation processes; n=456), plus (basic intervention additionally targeting environmental-level factors; n=459), and control (generic nutrition information; n=434) group. Participants were recruited from the general population and randomly assigned to a study group. Self-reported fruit, vegetable, high-energy snack, and saturated fat intake were assessed at baseline and at 1- (T1) and 4-months (T2) postintervention using online questionnaires. Linear mixed model analyses examined group differences in change over time. Educational differences were examined with groupxtimexeducation interaction terms. RESULTS: In the total sample, the basic (T1: ES=-0.30; T2: ES=-0.18) and plus intervention groups (T1: ES=-0.29; T2: ES=-0.27) had larger decreases in high-energy snack intake than the control group. The basic version resulted in a larger decrease in saturated fat intake than the control intervention (T1: ES=-0.19; T2: ES=-0.17). In the risk groups, the basic version caused larger decreases in fat (T1: ES=-0.28; T2: ES=-0.28) and high-energy snack intake (T1: ES=-0.34; T2: ES=-0.20) than the control intervention. The plus version resulted in a larger increase in fruit (T1: ES=0.25; T2: ES=0.37) and a larger decrease in high-energy snack intake (T1: ES=-0.38; T2: ES=-0.32) than the control intervention. For high-energy snack intake, educational differences were found. Stratified analyses showed that the plus version was most effective for high-educated participants. CONCLUSIONS: Both intervention versions were more effective in improving some of the self-reported dietary behaviors than generic nutrition information, especially in the risk groups, among both higher- and lower-educated participants. For fruit intake, only the plus version was more effective than providing generic nutrition information. Although feasible, incorporating environmental-level information is time-consuming. Therefore, the basic version may be more feasible for further implementation, although inclusion of feedback on the arrangement of the home food environment and on availability and prices may be considered for fruit and, for high-educated people, for high-energy snack intake. TRIAL REGISTRATION: Netherlands Trial Registry NTR3396; http://www.trialregister.nl/trialreg/admin/rctview.asp?TC=3396 (Archived by WebCite at http://www.webcitation.org/6VNZbdL6w).
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Springvloet,L., Lechner,L., de Vries,H., Candel,M.J., Oenema,A.
Original/Translated Title
URL
Date of Electronic
20150119
PMCID
PMC4319071
Editors
|
|||
| Short-Term Impact of a Comprehensive Smoke-Free Law Following a Partial Smoke-Free Law on PM(2).(5) Concentration Levels at Hospitality Venues on the Peripheries of College Campuses | 2015 | Department of Environmental Health Sciences, Soonchunhyang University, Asan 336-745, Korea. solsol0914@gmail.com.; Department of Occupational Health, Catholic University of Daegu, Gyeongsan-si 712-702, Korea. whyang@cu.ac.kr.; Department of Environmental | Read more... |
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Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
International journal of environmental research and public health
Periodical, Abbrev.
Int.J.Environ.Res.Public.Health.
Pub Date Free Form
2-Nov
Volume
12
Issue
11
Start Page
14034
Other Pages
14042
Notes
LR: 20151214; JID: 101238455; 0 (Particulate Matter); 0 (Smoke); 0 (Tobacco Smoke Pollution); OID: NLM: PMC4661630; OTO: NOTNLM; 2015/09/01 [received]; 2015/10/21 [revised]; 2015/10/28 [accepted]; epublish
Place of Publication
Switzerland
ISSN/ISBN
1660-4601; 1660-4601
Accession Number
PMID: 26540063
Language
eng
SubFile
Comparative Study; Journal Article; IM
DOI
10.3390/ijerph121114034 [doi]
Output Language
Unknown(0)
PMID
26540063
Abstract
Tobacco-free policies on college campuses are spreading in Korea. However, the impact of the smoking ban legislation at venues on the boundary of a college campus is still limited. This study aimed to assess short-term changes in PM2.5 concentrations before and after the enactment of the smoking ban legislation to evaluate the impact. In this cross-sectional study, PM2.5 measurements (pre-ban: n = 99, post-ban: n = 64) were conducted in randomly selected billiards, pubs, and computer game rooms on the peripheries of college campuses in October 2013, prior to implementation of the smoking ban, and in May 2014, after the ban. The median (interquartile range, IQR) of the PM2.5 concentration for all venues was 31 mug/m(3) (0-80 mug/m(3)) in the pre-ban period and 11 mug/m(3) (0-36 mug/m(3)) in the post-ban period implying indoor PM2.5 concentration levels of the peripheries of college campuses likely decreased one year after implementation of the ban. However, the differences were not significant yet. The results support the introduction of more rigorous monitoring of SHS exposure levels toward the ultimate goal of encouraging a complete smoking ban in hospitality venues, including billiards, pubs, and computer game rooms located on the peripheries of college campuses.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Yu,S., Yang,W., Lee,K., Kim,S., Ha,K., Kim,S.
Original/Translated Title
URL
Date of Electronic
20151102
PMCID
PMC4661630
Editors
|
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| Short-term nose-only water-pipe (shisha) smoking exposure accelerates coagulation and causes cardiac inflammation and oxidative stress in mice | 2015 | Department of Physiology, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, UAE. | Read more... |
|
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Cellular physiology and biochemistry : international journal of experimental cellular physiology, biochemistry, and pharmacology
Periodical, Abbrev.
Cell.Physiol.Biochem.
Pub Date Free Form
Volume
35
Issue
2
Start Page
829
Other Pages
840
Notes
CI: (c) 2015; JID: 9113221; 0 (Interleukin-6); 0 (Tumor Necrosis Factor-alpha); 0 (interleukin-6, mouse); 2014/10/29 [accepted]; 2015/01/30 [aheadofprint]; ppublish
Place of Publication
Switzerland
ISSN/ISBN
1421-9778; 1015-8987
Accession Number
PMID: 25634761
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1159/000369741 [doi]
Output Language
Unknown(0)
PMID
25634761
Abstract
BACKGROUND/AIM: Water-pipe smoking (WPS) has acquired worldwide popularity, and is disseminating particularly rapidly in Europe and North America. However, little is known about the short-term cardiovascular effects of WPS. METHODS: Presently, we assessed the short-term cardiovascular effects of nose-only exposure to mainstream WPS in BALB/c mice for 30 min/day for 5 consecutive days. Control mice were exposed to air. At the end of the exposure period, several cardiovascular endpoints were measured. RESULTS: WPS did not affect the number of leukocytes and the plasma concentrations of C-reactive protein, tumor necrosis factor alpha (TNFalpha) and interleukin-6 (IL-6). Likewise, plasma levels of lipid peroxidation (LPO), reduced glutathione (GSH) and catalase were not affected by WPS. By contrast, WPS aggravated in vivo thrombosis by shortening the thrombotic occlusion time in pial arterioles and venules. The number of circulating platelets was reduced by WPS suggesting the occurrence of platelet aggregation in vivo. Elevated concentrations of fibrinogen and plasminogen activator inhibitor-1 were seen after the exposure to WPS. Blood samples taken from mice exposed to WPS and exposed to adenosine diphosphate showed more platelet aggregation. The heart concentrations of IL-6 and TNFalpha were augmented by WPS. Likewise, heart levels of LPO, reactive oxygen species and the antioxidants catalase and GSH were increased by WPS. However, the systolic blood pressure and heart rate were not affected by WPS. CONCLUSION: It can be concluded that short-term exposure to WPS exerts procoagulatory effects and induce cardiac inflammation and oxidative stress. At the time point investigated, there was no evidence for blood inflammation or oxidative stress.
Descriptors
Links
Book Title
Database
Publisher
S. Karger AG, Basel
Data Source
Authors
Nemmar,A., Yuvaraju,P., Beegam,S., Ali,B.H.
Original/Translated Title
URL
Date of Electronic
20150130
PMCID
Editors
|
|||
| Short-term systemic effects of nose-only cigarette smoke exposure in mice: role of oxidative stress | 2013 | Department of Physiology, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, UAE. anemmar@uaeu.ac.ae | Read more... |
|
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Cellular physiology and biochemistry : international journal of experimental cellular physiology, biochemistry, and pharmacology
Periodical, Abbrev.
Cell.Physiol.Biochem.
Pub Date Free Form
Volume
31
Issue
1
Start Page
15
Other Pages
24
Notes
LR: 20131121; CI: Copyright (c) 2012; JID: 9113221; 0 (Reactive Oxygen Species); 31C4KY9ESH (Nitric Oxide); 8W8T17847W (Urea); AYI8EX34EU (Creatinine); EC 1.15.1.1 (Superoxide Dismutase); EC 2.3.2.2 (gamma-Glutamyltransferase); EC 2.6.1.2 (Alanine Transam
Place of Publication
Switzerland
ISSN/ISBN
1421-9778; 1015-8987
Accession Number
PMID: 23343613
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1159/000343345 [doi]
Output Language
Unknown(0)
PMID
23343613
Abstract
BACKGROUND/AIMS: Long-term cigarette smoking (CS) is a major risk factor for respiratory and cardiovascular diseases, and is also known to adversely affect other organs. However, data on the systemic effects of short-term CS exposure (STCSE) are scarce. Presently, using a nose-only exposure system, we evaluated the systemic effects of STCSE in mice. METHODS: We assessed the effects of CS generated by 9 consecutive cigarettes per day for 4 days in a nose-only exposure system on cardiovascular, hepatic and renal endpoints evaluated on day 5 in mice. Control mice were exposed to air only. RESULTS: CS significantly increased systolic blood pressure and decreased total nitric oxide plasma concentration. Circulating platelets and erythrocyte numbers were also increased. However, STCSE did not significantly increase thrombosis in pial arterioles and venules. STCSE significantly raised plasma alanine aminotransferase and gamma glutamyl transpeptidase activities, but did not affect urea or creatinine concentrations. Interestingly, while STCSE enhanced the production of reactive oxygen species in heart and kidney and lipid peroxidation in heart, liver and kidneys, it also enhanced the antioxidant activity of superoxide dismutase, probably indicating that STCSE causes adaptive reactions to counterbalance the potentially damaging action of oxygen radicals induced by STCSE. CONCLUSION: These results suggest that STCSE causes blood pressure increase, hepatotoxicity and oxidative stress in the heart, liver and the kidneys. These data provide information on the initial steps leading to the systemic effects of STCSE, a stage at which the diseases may likely be reversed.
Descriptors
Links
Book Title
Database
Publisher
S. Karger AG, Basel
Data Source
Authors
Nemmar,A., Raza,H., Subramaniyan,D., Yasin,J., John,A., Ali,B.H., Kazzam,E.E.
Original/Translated Title
URL
Date of Electronic
20130114
PMCID
Editors
|
|||
| Should any workplace be exempt from smoke-free law: the Irish experience | 2012 | School of Physics, Dublin Institute of Technology, Dublin 8, Ireland. | Read more... |
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Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Journal of environmental and public health
Periodical, Abbrev.
J.Environ.Public.Health.
Pub Date Free Form
Volume
2012
Issue
Start Page
545483
Other Pages
Notes
LR: 20151119; JID: 101516361; 0 (Particulate Matter); 0 (Tobacco Smoke Pollution); 6M3C89ZY6R (Nicotine); 7U1EE4V452 (Carbon Monoxide); OID: NLM: PMC3368201; 2012/01/04 [received]; 2012/03/17 [revised]; 2012/03/27 [accepted]; 2012/05/24 [epublish]; ppubli
Place of Publication
United States
ISSN/ISBN
1687-9813; 1687-9805
Accession Number
PMID: 22693522
Language
eng
SubFile
Journal Article; Multicenter Study; IM
DOI
10.1155/2012/545483 [doi]
Output Language
Unknown(0)
PMID
22693522
Abstract
BACKGROUND: In 2004, the Irish Government introduced national legislation banning smoking in workplaces; with exemptions for "a place of residence". This paper summarises three Irish studies of exempted premises; prisons, psychiatric hospitals and nursing homes. METHODS: PM(2.5) and nicotine were measured in nursing homes and psychiatric hospitals, in addition to ultrafine particles in the hospitals. In the prisons, officers (n = 30) completed exhaled breath Carbon Monoxide (CO) measurements. Questionnaires determined officers' opinion on introducing smoking prohibitions in prisons. Nursing home smoking policies were examined and questionnaires completed by staff regarding workplace secondhand smoke (SHS) exposure. FINDINGS: Ultrafine particle concentrations in psychiatric hospitals averaged 130,000 cm(3), approximately 45% higher than Dublin pub (35.5 mug/m(3)) pre ban. PM(2.5) levels in psychiatric hospitals (39.5 mug/m(3)) were similar to Dublin pubs (35.5 mug/m(3)) pre ban. In nursing homes permitting smoking, similar PM(2.5) levels (33 mug/m(3)) were measured, with nicotine levels (0.57 mug/m(3)) four times higher than "non-smoking" nursing homes (0.13 mug/m(3)). In prisons, 44% of non-smoking officers exhibited exhaled breath CO criteria for light to heavy smokers. CONCLUSIONS: With SHS exposure levels in some exempted workplaces similar to Dublin pubs levels pre ban, policies ensuring full protection must be developed and implemented as a right for workers, inmates and patients.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
McCaffrey,M., Goodman,P., Gavigan,A., Kenny,C., Hogg,C., Byrne,L., McLaughlin,J., Young,K., Clancy,L.
Original/Translated Title
URL
Date of Electronic
20120524
PMCID
PMC3368201
Editors
|
|||
| Significance of smoking machine toxicant yields to blood-level exposure in water pipe tobacco smokers | 2011 | Department of Mechanical Engineering, Faculty of Engineering and Architecture, American University of Beirut, Beirut, Lebanon. | Read more... |
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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
Nov
Volume
20
Issue
11
Start Page
2457
Other Pages
2460
Notes
LR: 20151119; CI: (c) 2011; GR: R01 CA120142/CA/NCI NIH HHS/United States; GR: R01CA120142/CA/NCI NIH HHS/United States; JID: 9200608; 0 (Smoke); 0 (Tobacco Smoke Pollution); 6M3C89ZY6R (Nicotine); NIHMS544755; OID: NLM: NIHMS544755; OID: NLM: PMC3895338;
Place of Publication
United States
ISSN/ISBN
1538-7755; 1055-9965
Accession Number
PMID: 21914836
Language
eng
SubFile
Journal Article; Research Support, N.I.H., Extramural; IM
DOI
10.1158/1055-9965.EPI-11-0586 [doi]
Output Language
Unknown(0)
PMID
21914836
Abstract
BACKGROUND: The global increase in tobacco smoking with a water pipe (hookah, narghile, or shisha) has made understanding its health consequences imperative. One key to developing this understanding is identifying and quantifying carcinogens and other toxicants present in water pipe smoke. To do so, the toxicant yield of machine-generated water pipe smoke has been measured. However, the relevance of toxicant yields of machine-generated smoke to actual human exposure has not been established. METHODS: In this study, we examined whether carbon monoxide (CO) and nicotine yields measured with a smoking machine programmed to replicate the puffing behavior of 31 human participants who smoked a water pipe could reliably predict these participants' blood-level exposure. In addition to CO and nicotine, yields of polyaromatic hydrocarbons, volatile aldehydes, nitric oxide (NO), and "tar" were measured. RESULTS: We found that when used in this puff-replicating manner, smoking machine yields are highly correlated with blood-level exposure (nicotine: r > 0.76, P 0.78, P
Descriptors
Links
Book Title
Database
Publisher
AACR
Data Source
Authors
Shihadeh,A.L., Eissenberg,T.E.
Original/Translated Title
URL
Date of Electronic
20110913
PMCID
PMC3895338
Editors
|
|||
| Simple approach based on ultrasound-assisted emulsification-microextraction for determination of polibrominated flame retardants in water samples by gas chromatography-mass spectrometry | 2009 | Laboratorio de Investigaciones y Servicios Ambientales Mendoza, Centro Cientifico Tecnologico-CONICET-Mendoza, PO Box 131, 5500 Mendoza, Argentina. | Read more... |
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Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Journal of chromatography.A
Periodical, Abbrev.
J.Chromatogr.A
Pub Date Free Form
2-Jan
Volume
1216
Issue
1
Start Page
147
Other Pages
153
Notes
LR: 20131121; JID: 9318488; 0 (Emulsifying Agents); 0 (Flame Retardants); 0 (Halogenated Diphenyl Ethers); 0 (Solvents); 059QF0KO0R (Water); 2008/08/07 [received]; 2008/11/07 [revised]; 2008/11/13 [accepted]; 2008/11/19 [aheadofprint]; ppublish
Place of Publication
Netherlands
ISSN/ISBN
0021-9673; 0021-9673
Accession Number
PMID: 19054523
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1016/j.chroma.2008.11.034 [doi]
Output Language
Unknown(0)
PMID
19054523
Abstract
A simple, efficient, innovative and environmentally friendly analytical technique was successfully applied for the first time for the extraction and preconcentration of polybrominated diphenyl ethers (PBDEs) from water samples. The PBDEs selected for this work were those most commonly found in the literature in natural water samples: 2,2',4,4'-tetraBDE (BDE-47), 2,2',4,4,5-pentaBDE (BDE-99), 2,2',4,4,6-pentaBDE (BDE-100) and 2,2,4,4',5,5'-hexaBDE (BDE-153). The extracted PBDEs were separated and determined by gas chromatography-mass spectrometry (GC-MS). The extraction/preconcentration technique is based on ultrasound-assisted emulsification-microextraction (USAEME) of a water-immiscible solvent in an aqueous medium. Several variables including, solvent type, extraction time, extraction temperature and matrix modifiers were studied and optimized over the relative response the target analytes. Chloroform was used as extraction solvent in the USAEME technique. Under optimum conditions, the target analytes were quantitatively extracted achieving enrichment factors (EF) higher than 319. The detection limits (LODs) of the analytes for the preconcentration of 10 mL sample volume were within the range 1-2 pg mL(-1). The relative standard deviations (RSD) for five replicates at 10 pg mL(-1) concentration level were or = 0.9985. Validation of the methodology was performed by standard addition method at two concentration levels (10 and 50 pg mL(-1)). Recovery values were > or = 96%, which showed a successful robustness of the analytical methodology for determination of picogram per milliliter of PBDEs in water samples. Significant quantities of PBDEs were not found in the analyzed samples.
Descriptors
Analytic Sample Preparation Methods/methods, Emulsifying Agents/chemistry, Environmental Monitoring, Flame Retardants/analysis, Gas Chromatography-Mass Spectrometry, Halogenated Diphenyl Ethers/analysis, Hydrogen-Ion Concentration, Osmolar Concentration, Solvents/chemistry, Sonication, Temperature, Time Factors, Ultrasonics, Water/chemistry
Links
Book Title
Database
Publisher
Data Source
Authors
Fontana,A. R., Wuilloud,R. G., Martinez,L. D., Altamirano,J. C.
Original/Translated Title
URL
Date of Electronic
20081119
PMCID
Editors
|
|||
| Simplified and rapid determination of polychlorinated biphenyls, polybrominated diphenyl ethers, and polycyclic aromatic hydrocarbons in fish and shrimps integrated into a single method | 2011 | Institute of Chemical Technology, Prague, Faculty of Food and Biochemical Technology, Department of Food Chemistry and Analysis, Prague, Czech Republic. | Read more... |
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Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Analytica Chimica Acta
Periodical, Abbrev.
Anal.Chim.Acta
Pub Date Free Form
30-Nov
Volume
707
Issue
2-Jan
Start Page
84
Other Pages
91
Notes
LR: 20131121; CI: Copyright (c) 2011; JID: 0370534; 0 (Halogenated Diphenyl Ethers); 0 (Polycyclic Hydrocarbons, Aromatic); 0 (Water Pollutants, Chemical); DFC2HB4I0K (Polychlorinated Biphenyls); 2011/07/18 [received]; 2011/09/13 [revised]; 2011/09/14 [ac
Place of Publication
Netherlands
ISSN/ISBN
1873-4324; 0003-2670
Accession Number
PMID: 22027123
Language
eng
SubFile
Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1016/j.aca.2011.09.016 [doi]
Output Language
Unknown(0)
PMID
22027123
Abstract
In this study, a new rapid and flexible method for the simultaneous determination of 18 key representatives of polychlorinated biphenyls (PCBs), 7 polybrominated diphenyl ethers (PBDEs), and 32 polycyclic aromatic hydrocarbons (PAHs) in fish and shrimps by gas chromatography coupled to mass spectrometry (GC-MS) was developed and validated. A substantial simplification of sample processing prior to quantification step was achieved: after addition of water to homogenized sample, transfer of hydrophobic analytes into ethyl acetate was supported by added inorganic salts. Bulk fat, contained in crude organic extract obtained by partition, was subsequently removed on a silica minicolumn. This approach enabled to process six samples in less than 1h; moreover, the volume of an extraction solvent and consumption of other chemicals can be significantly reduced compared to, e.g., traditional Soxhlet extraction followed by gel permeation chromatography. The recoveries of target analytes were in the range of 73-120% even at the lowest spiking level (1 mug kg(-1)), repeatabilities (relative standard deviations, RSDs) ranged from 1 to 20%. Under optimized GC-MS conditions (time-of-flight mass analyzer, TOF), the limits of quantification (LOQs) were as follows: PCBs 0.1-0.5 mug kg(-1), PBDEs 0.5 mug kg(-1), and PAHs 0.05-0.25 mug kg(-1). Ambient mass spectrometry employing a direct analysis in real time (DART) ion source was shown as an effective tool for fat control in extract, which is needed during the method development and examination of unknown samples prior to the analysis. Further extension of a method scope by other similar analytes is easily possible.
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Publisher
Elsevier B.V
Data Source
Authors
Kalachova,K., Pulkrabova,J., Drabova,L., Cajka,T., Kocourek,V., Hajslova,J.
Original/Translated Title
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Date of Electronic
20110919
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