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Study protocol for iQuit in Practice: a randomised controlled trial to assess the feasibility, acceptability and effectiveness of tailored web- and text-based facilitation of smoking cessation in primary care 2013 Behavioural Science Group, Institute of Public Health, University of Cambridge, Cambridge, England, UK. srs34@medschl.cam.ac.uk
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Print(0)
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Journal Article
Periodical, Full
BMC public health
Periodical, Abbrev.
BMC Public Health
Pub Date Free Form
10-Apr
Volume
13
Issue
Start Page
324
Other Pages
2458-13-324
Notes
LR: 20151119; ISRCTN/ISRCTN56702353; JID: 100968562; OID: NLM: PMC3641973; 2013/01/08 [received]; 2013/04/03 [accepted]; 2013/04/10 [aheadofprint]; epublish
Place of Publication
England
ISSN/ISBN
1471-2458; 1471-2458
Accession Number
PMID: 23575031
Language
eng
SubFile
Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't; IM
DOI
10.1186/1471-2458-13-324 [doi]
Output Language
Unknown(0)
PMID
23575031
Abstract
BACKGROUND: Primary care is an important setting for smoking cessation interventions. There is evidence for the effectiveness of tailored interventions for smoking cessation, and text messaging interventions for smoking cessation show promise. The intervention to be evaluated in this trial consists of two components: (1) a web-based program designed to be used by a practice nurse or other smoking cessation advisor (SCA); the program generates a cessation advice report that is highly tailored to relevant characteristics of the smoker; and (2) a three-month programme of automated tailored text messages sent to the smoker's mobile phone. The objectives of the trial are to assess the acceptability and feasibility of the intervention and to estimate the short-term effectiveness of the intervention in increasing the quit rate compared with usual care alone. METHODS/DESIGN: The design is a two parallel group randomised controlled trial (RCT). 600 smokers who want to quit will be recruited in up to 30 general practices in the East of England. During a consultation with an SCA, they will be individually randomised by computer program to usual care (Control) or to usual care plus the iQuit system (Intervention). At the four-week follow-up appointment, the SCA will record smoking status and measure carbon monoxide level. There will be two further follow-ups, at eight weeks and six months from randomisation date, by postal questionnaire sent from and returned to the study centre or by telephone interview conducted by a research interviewer. The primary outcome will be self-reported abstinence for at least two weeks at eight weeks. A sample size of 300 per group would give 80% power to detect an increase in quit rate from 20% to 30% (alpha = 0.05, 2-sided test). The main analyses of quit rates will be conducted on an intention-to-treat basis, making the usual assumption that participants lost to follow up are smoking. DISCUSSION: This trial will focus on acceptability, feasibility and short-term effectiveness. The findings will be used to refine the intervention and to inform the decision to proceed to a pragmatic trial to estimate longer-term effectiveness and cost-effectiveness. TRIAL REGISTRATION: ISRCTN56702353.
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Database
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Data Source
Authors
Sutton,S., Smith,S., Jamison,J., Boase,S., Mason,D., Prevost,A.T., Brimicombe,J., Sloan,M., Gilbert,H., Naughton,F.
Original/Translated Title
URL
Date of Electronic
20130410
PMCID
PMC3641973
Editors
Effects of secondhand smoke on the birth weight of term infants and the demographic profile of Saudi exposed women 2013 Sheikh Bahamdan Research Chair of Evidence-Based Healthcare and Knowledge Translation, College of Medicine, King Saud University, P.O. Box 102799, Riyadh 11685, Kingdom of Saudi Arabia. umlena@yahoo.com
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Print(0)
Ref Type
Journal Article
Periodical, Full
BMC public health
Periodical, Abbrev.
BMC Public Health
Pub Date Free Form
15-Apr
Volume
13
Issue
Start Page
341
Other Pages
2458-13-341
Notes
LR: 20150427; JID: 100968562; 0 (Tobacco Smoke Pollution); OID: NLM: PMC3641009; 2013/01/07 [received]; 2013/04/11 [accepted]; 2013/04/15 [aheadofprint]; epublish
Place of Publication
England
ISSN/ISBN
1471-2458; 1471-2458
Accession Number
PMID: 23587116
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1186/1471-2458-13-341 [doi]
Output Language
Unknown(0)
PMID
23587116
Abstract
BACKGROUND: Maternal exposure to tobacco smoke during pregnancy is associated with detrimental effects on the mother and the fetus including; impaired fetal growth, low birth weight and preterm delivery. In utero exposure to tobacco is implicated in the etiology of many adults' diseases including obesity, diabetes and hypertension.The objectives of this study were to evaluate the effects of Secondhand Tobacco Smoke (SHS) exposure on newborns' anthropometric measurements and to compare the demographic profile of the women exposed to SHS to those who were not. METHOD: This is a retrospective cohort study investigating the effects of SHS during pregnancy on newborns' anthropometry. Women who self-reported SHS exposure were compared with those not exposed. The primary outcomes were birth weight, newborn length and head circumference. Univariate analysis and multivariate regression analysis were performed. Adjusted differences with 95% confidence intervals were calculated. RESULTS: Mothers exposed to SHS constituted 31% of the cohort. The mean birth weight of infants of exposed mothers was significantly lower by 35 g, 95% CI: 2-68 g, (P = 0.037) and the mean length was shorter by 0.261 cm, 95% CI 0.058-0.464 cm, (P = 0.012) compared to the infants of unexposed mothers. Women exposed to SHS, were younger, of lower parity and more likely to be illiterate than those who were not exposed in addition, exposed women were less likely to be primiparous. CONCLUSION: The prevalence of exposure of Saudi pregnant women to SHS is high at 31% and it is associated with reduced birth weight, and shorter length of the newborn.
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Database
Publisher
Data Source
Authors
Wahabi,H.A., Alzeidan,R.A., Fayed,A.A., Mandil,A., Al-Shaikh,G., Esmaeil,S.A.
Original/Translated Title
URL
Date of Electronic
20130415
PMCID
PMC3641009
Editors
Association of Barrett's esophagus with type II Diabetes Mellitus: results from a large population-based case-control study 2013 Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA. iyer.prasad@mayo.edu
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Print(0)
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Journal Article
Periodical, Full
Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association
Periodical, Abbrev.
Clin.Gastroenterol.Hepatol.
Pub Date Free Form
Sep
Volume
11
Issue
9
Start Page
1108
Other Pages
111400000
Notes
LR: 20150814; CI: Copyright (c) 2013; GR: P50 CA150964/CA/NCI NIH HHS/United States; GR: RC4 DK090413/DK/NIDDK NIH HHS/United States; GR: U54 CA163060/CA/NCI NIH HHS/United States; JID: 101160775; NIHMS510117; OID: NLM: NIHMS510117; OID: NLM: PMC3865768;
Place of Publication
United States
ISSN/ISBN
1542-7714; 1542-3565
Accession Number
PMID: 23591277
Language
eng
SubFile
Journal Article; IM
DOI
10.1016/j.cgh.2013.03.024 [doi]
Output Language
Unknown(0)
PMID
23591277
Abstract
BACKGROUND & AIMS: Central obesity could increase the risk for Barrett's esophagus (BE) and esophageal adenocarcinoma by mechanical and/or metabolic mechanisms, such as hyperinsulinemia. We performed an epidemiologic study to determine whether prior type 2 diabetes mellitus (DM2) is associated with BE. METHODS: We performed a population-based case-control study using the General Practice Research Database, a UK primary care database that contains information on more than 8 million subjects, to identify cases of BE (using previously validated codes; n = 14,245) and matched controls without BE (by age, sex, enrollment date, duration of follow-up evaluation, and practice region by incidence density sampling; n = 70,361). We assessed the association of a prior diagnosis of DM2 with BE using conditional univariate and multivariable regression analysis. Confounders assessed included smoking, obesity measured by body mass index (BMI), and gastroesophageal reflux disease. RESULTS: BE cases were more likely than controls to have smoked (52.4% vs 49.9%), have a higher mean BMI (27.2 vs 26.9), and a higher prevalence of DM2 than controls (5.8% vs 5.3%). On multivariable analysis, DM2 was associated with a 49% increase in the risk of BE, independent of other known risk factors (odds ratio, 1.49; 95% confidence interval, 1.16-1.91). This association was stronger in women than men. Results remained stable with sensitivity analyses. CONCLUSIONS: In a large population-based case-control study, DM2 was a risk factor for BE, independent of obesity (as measured by BMI) and other risk factors (smoking and gastroesophageal reflux disease). These data suggest that metabolic pathways related to DM2 should be explored in BE pathogenesis and esophageal carcinogenesis.
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Book Title
Database
Publisher
AGA Institute. Published by Elsevier Inc
Data Source
Authors
Iyer,P.G., Borah,B.J., Heien,H.C., Das,A., Cooper,G.S., Chak,A.
Original/Translated Title
URL
Date of Electronic
20130413
PMCID
PMC3865768
Editors
Evaluation of the effect of pentoxifylline on sleep-deprivation induced memory impairment 2013 Department of Clinical Pharmacy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Hippocampus
Periodical, Abbrev.
Hippocampus
Pub Date Free Form
Sep
Volume
23
Issue
9
Start Page
812
Other Pages
819
Notes
CI: Copyright (c) 2013; JID: 9108167; 0 (Phosphodiesterase Inhibitors); EC 1.11.1.6 (Catalase); EC 1.11.1.9 (Glutathione Peroxidase); EC 1.15.1.1 (Superoxide Dismutase); GAN16C9B8O (Glutathione); SD6QCT3TSU (Pentoxifylline); OTO: NOTNLM; 2013/04/05 [accep
Place of Publication
United States
ISSN/ISBN
1098-1063; 1050-9631
Accession Number
PMID: 23592546
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1002/hipo.22135 [doi]
Output Language
Unknown(0)
PMID
23592546
Abstract
In this study, we examined the ability of Pentoxifylline (PTX) to prevent sleep deprivation induced memory impairment probably through decreasing oxidative stress. Sleep deprivation was chronically induced 8 h/day for 6 weeks in rats using modified multiple platform model. Concurrently, PTX (100 mg/kg) was administered to animals on daily basis. After 6 weeks of treatment, behavioral studies were conducted to test the spatial learning and memory using the Radial Arm Water Maze. Additionally, the hippocampus was dissected; and levels/activities of antioxidant defense biomarkers glutathione reduced (GSH), glutathione oxidized (GSSG), GSH/GSSG ratio, glutathione peroxidase (GPx), catalase, and superoxide dismutase (SOD), were assessed. The results show that chronic sleep deprivation impaired short- and long-term memories, which was prevented by chronic treatment with PTX. Additionally, PTX normalized sleep deprivation-induced reduction in the hippocampus GSH/GSSG ratio (P
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Book Title
Database
Publisher
Wiley Periodicals, Inc
Data Source
Authors
Alzoubi,K.H., Khabour,O.F., Tashtoush,N.H., Al-Azzam,S.I., Mhaidat,N.M.
Original/Translated Title
URL
Date of Electronic
20130522
PMCID
Editors
The effect of long-term aspirin intake on the outcome of non-surgical periodontal therapy in smokers: a double-blind, randomized pilot study 2014 Department of Periodontology, College of Dentistry, University of Tennessee Health Science Center, Memphis, TN, USA.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Journal of periodontal research
Periodical, Abbrev.
J.Periodontal.Res.
Pub Date Free Form
Feb
Volume
49
Issue
1
Start Page
102
Other Pages
109
Notes
CI: (c) 2013; JID: 0055107; 0 (Anti-Inflammatory Agents, Non-Steroidal); 0 (Placebos); R16CO5Y76E (Aspirin); OTO: NOTNLM; 2013/03/09 [accepted]; 2013/04/18 [aheadofprint]; ppublish
Place of Publication
United States
ISSN/ISBN
1600-0765; 0022-3484
Accession Number
PMID: 23594239
Language
eng
SubFile
Comparative Study; Journal Article; Randomized Controlled Trial; D; IM
DOI
10.1111/jre.12085 [doi]
Output Language
Unknown(0)
PMID
23594239
Abstract
OBJECTIVE: The objective of this parallel, double-blind, randomized pilot study was to determine the effect of a daily dose of 325 mg of aspirin (ASA) on the clinical outcomes of scaling and root planing in a selected group of adult smokers. BACKGROUND: The response to periodontal therapy is inferior among smokers compared to non-smokers. Long-term intake of ASA has been shown to exert a positive impact on reducing both the prevalence and severity of periodontitis, among high-risk groups of subjects such as heavy smokers and diabetics. It is reasonable to assume that systemic administration of ASA in conjunction with reduction of the bacterial load by scaling and root planing may improve and prolong the benefits of periodontal therapy. To date, only few prospective interventional clinical studies have specifically addressed the periodontal needs of smokers. METHODS: The study includes 24 smokers. The following clinical parameters were measured preoperatively and at 3, 6, 9 and 12 mo postoperatively: (i) gingival index; (ii) plaque index; (iii) probing depth; (iii) probing attachment level; (iv) gingival recession; and (v) bleeding scores. Study subjects received scaling and root planing over several visits and were randomly assigned into two equal groups; a control group (C), which received a placebo and a test group (T), which took a daily dose of 325 mg ASA. No additional therapy was provided over the 1 year observation period. RESULTS: There were more statistically significant differences (p /= 7 mm (T: -1.42; C: -02.09); mean percent reduction in sites with probing attachment level 3-4 mm (T: -3.63; C: 0.48 NS); mean percent reduction in sites with bleeding on probing (T: -12.37; C: -2.59 NS) (p
Descriptors
Links
Book Title
Database
Publisher
John Wiley & Sons A/S. Published by John Wiley & Sons Ltd
Data Source
Authors
Shiloah,J., Bland,P.S., Scarbecz,M., Patters,M.R., Stein,S.H., Tipton,D.A.
Original/Translated Title
URL
Date of Electronic
20130418
PMCID
Editors
BTEX pollution caused by motorcycles in the megacity of HoChiMinh 2013 University of Science, Vietnam National University, 227 Nguyen Van Cu, HoChiMinh 70000, Vietnam. ttnlan@hcmus.edu.vn
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Journal of Environmental Sciences (China)
Periodical, Abbrev.
J.Environ.Sci.(China)
Pub Date Free Form
1-Feb
Volume
25
Issue
2
Start Page
348
Other Pages
356
Notes
LR: 20131121; JID: 100967627; 0 (Air Pollutants); 0 (Vehicle Emissions); 0 (Xylenes); 3FPU23BG52 (Toluene); J64922108F (Benzene); ppublish
Place of Publication
Netherlands
ISSN/ISBN
1001-0742; 1001-0742
Accession Number
PMID: 23596956
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
Output Language
Unknown(0)
PMID
23596956
Abstract
Monitoring of benzene, toluene and xylenes (BTEX) was conducted along with traffic counts at 17 roadside sites in urban areas of HoChiMinh. Toluene was the most abundant substance, followed by p,m-xylenes, benzene, o-xylene and ethylbenzene. The maximum observed hour-average benzene concentration was 254 microg/m3. Motorcycles contributed to 91% of the traffic fleet. High correlations among BTEX species, between BTEX concentrations and the volume of on-road motorcycles, and between inter-species ratios in air and in gasoline indicate the motorcycle-exhaust origin of BTEX species. Daily concentrations of benzene, toluene, ethylbenzene, p,m-xylenes and o-xylene were 56, 121, 21, 64 and 23 microg/m3, respectively, p,m-xylenes possess the highest ozone formation potential among the BTEX family.
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Book Title
Database
Publisher
Data Source
Authors
Lan,T.T., Minh,P.A.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Prevalence of waterpipe tobacco smoking among population aged 15 years or older, Vietnam, 2010 2013 Institute of Preventive Medicine and Public Health, Hanoi Medical University, No 1 Ton That Tung, Dong Da, Hanoi, Vietnam. lethithanhxuan@hmu.edu.vn
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Preventing chronic disease
Periodical, Abbrev.
Prev.Chronic Dis.
Pub Date Free Form
18-Apr
Volume
10
Issue
Start Page
E57
Other Pages
Notes
LR: 20160317; JID: 101205018; OID: NLM: PMC3638612; epublish
Place of Publication
United States
ISSN/ISBN
1545-1151; 1545-1151
Accession Number
PMID: 23597395
Language
eng
SubFile
Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.; IM
DOI
10.5888/pcd10.120100 [doi]
Output Language
Unknown(0)
PMID
23597395
Abstract
INTRODUCTION: The prevalence of waterpipe tobacco smoking is increasing globally and is associated with adverse outcomes requiring tobacco control interventions. We estimated the prevalence of waterpipe tobacco use among adult populations in Vietnam in 2010 and examined its association with sociodemographic factors. METHODS: We used data from the Global Adult Tobacco Survey (GATS) conducted in Vietnam in 2010. GATS surveyed a national representative sample of adults aged 15 years or older from 11,142 households by using a 2-phase sampling design analogous to a 3-stage stratified cluster sampling. Descriptive statistical analyses and multivariate logistic regression modeling were conducted. RESULTS: A total of 6.4% of Vietnamese aged 15 years or older (representing about 4.1 million adult waterpipe smokers) reported current waterpipe tobacco smoking. The prevalence of waterpipe tobacco smoking was significantly higher among men than women (13% vs 0.1%). Area of residence (rural or urban), age group, asset-based wealth quintile, and geographic region of residence were significantly associated with waterpipe tobacco smoking among men. The significant correlates of current waterpipe tobacco smoking among men were lower education levels, being middle-aged (45-54 years), lower asset-based wealth levels, living in rural areas, not living in the South East and the Mekong River Delta geographic regions, and the belief that smoking does not causes diseases. CONCLUSION: Rural dwellers who are poor should be targeted in tobacco control programs. Further studies are needed that examine perceptions of the adverse health effects and the cultural factors of waterpipe tobacco smoking.
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Book Title
Database
Publisher
Data Source
Authors
Xuan le,T.T., Van Minh,H., Giang,K.B., Nga,P.T., Hai,P.T., Minh,N.T., Hsia,J.
Original/Translated Title
URL
Date of Electronic
20130418
PMCID
PMC3638612
Editors
Optimization of a GC/MS procedure that uses parallel factor analysis for the determination of bisphenols and their diglycidyl ethers after migration from polycarbonate tableware 2013 Department of Chemistry, Faculty of Sciences, University of Burgos, Plaza Misael Banuelos s/n, 09001 Burgos, Spain.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Talanta
Periodical, Abbrev.
Talanta
Pub Date Free Form
15-Mar
Volume
106
Issue
Start Page
266
Other Pages
280
Notes
CI: Copyright (c) 2012; JID: 2984816R; 0 (Benzhydryl Compounds); 0 (Epoxy Compounds); 0 (Epoxy Resins); 0 (Phenols); 0 (Polycarboxylate Cement); 0 (bisphenol F diglycidyl ether); 25766-59-0 (polycarbonate); MLT3645I99 (bisphenol A); QD2C19044Z (4,4'-bisph
Place of Publication
Netherlands
ISSN/ISBN
1873-3573; 0039-9140
Accession Number
PMID: 23598127
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1016/j.talanta.2012.10.086 [doi]
Output Language
Unknown(0)
PMID
23598127
Abstract
Bisphenol A (BPA), bisphenol F (BPF) and their corresponding diglycidyl ethers (BADGE and BFDGE) are simultaneously determined using a programmed-temperature vaporizer-gas chromatography/mass spectrometry (PTV-GC/MS) system. BPA is used in the production of polycarbonate (PC), whereas BADGE and BFDGE are for manufacturing epoxy resins. Several food alerts caused by the migration of this kind of substances from contact food materials have led to the harmonization of the European legislation in Commission Regulation (EU) No. 10/2011, in force from 14 January 2011. In consequence, the use of BPA has been prohibited in the manufacture of plastic infant feeding bottles from 1 May 2011 and from 1 June 2011 regarding the placing on the market and importation into the European Union. Recently, the French Parliament has decreed that the presence of BPA in any food containers will be banned. Similarly, the use and/or presence of BFDGE are not allowed. In this work, a GC/MS method has been developed for the simultaneous determination of BPF, BPA, BFDGE and BADGE. For each one of the I samples that are analyzed, the abundance of J characteristic m/z ratios is recorded at K times around the retention time of each peak, so a data tensor of dimension IxJxK is obtained for every analyte. The decomposition of this tensor by means of parallel factor analysis (PARAFAC) enables to: (a) identify unequivocally each analyte according to the maximum permitted tolerances for relative ion intensities, and (b) quantify each analyte, even in the presence of coeluents. This identification, based on the mass spectrum and the retention time, guarantees the specificity of the analysis. This specificity could fail if the total ion chromatogram (TIC) is considered when there is poor resolution between some peaks or whether interferents coelute. With the aim of studying the effect of shortening the time of the analysis on the quality of the determinations while maintaining the specificity of the identifications, two of the heating ramps in the oven temperature program are changed according to a two-level factorial design. Each analyte is identified by means of a PARAFAC decomposition of a data tensor obtained from several concentration levels, in such a way that five figures of merit are calculated for each experiment of the design. The analysis of these figures of merit for the 16 objects (4 compoundsx4 heating ramps) using principal component analysis (PCA) shows that the shortest temperature program should be considered, since this is the one the best figures of merit for BPA and BFDGE (both banned) are achieved with. At these conditions and with probabilities of false positive and false negative fixed at 0.05, values of detection capability (CCbeta) between 2.65 and 4.71 mug L(-1) when acetonitrile is the injection solvent, and between 1.97 and 5.53 mug L(-1) when acetone, are obtained. This GC/MS method has been applied to the simultaneous determination of BPF, BPA, BFDGE and BADGE in food simulant D1 (ethanol-H2O, 1:1 v/v), which had been previously in contact with PC tableware for 24h at 70 degrees C and then pretreated by a solid-phase extraction (SPE) step. The migration of BPA from the new PC containers analyzed is confirmed, and values between 104.67 and 181.46 mug L(-1) (0.73 and 1.27 mug L(-1) after correction) of BPA have been estimated. None of the results obtained exceeds the specific migration limit of 600 mug L(-1) established by law for BPA in plastic food materials different from PC infant feeding bottles. Severe problems of coelution of interferents have been overcome using PARAFAC decompositions in the analysis of these food simulant samples.
Descriptors
Links
Book Title
Database
Publisher
Elsevier B.V
Data Source
Authors
Oca,M.L., Ortiz,M.C., Herrero,A., Sarabia,L.A.
Original/Translated Title
URL
Date of Electronic
20121102
PMCID
Editors
Ionic liquid coated magnetic nanoparticles for the gas chromatography/mass spectrometric determination of polycyclic aromatic hydrocarbons in waters 2013 Department of Analytical Chemistry, Institute of Fine Chemistry and Nanochemistry, Marie Curie Building, Campus de Rabanales, University of Cordoba, 14071 Cordoba, Spain.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Journal of chromatography.A
Periodical, Abbrev.
J.Chromatogr.A
Pub Date Free Form
26-Jul
Volume
1300
Issue
Start Page
134
Other Pages
140
Notes
CI: Copyright (c) 2013; JID: 9318488; 0 (Drinking Water); 0 (Imidazoles); 0 (Ionic Liquids); 0 (Magnetite Nanoparticles); 0 (Polycyclic Hydrocarbons, Aromatic); 0 (Water Pollutants, Chemical); OTO: NOTNLM; 2012/12/11 [received]; 2013/03/07 [revised]; 2013
Place of Publication
Netherlands
ISSN/ISBN
1873-3778; 0021-9673
Accession Number
PMID: 23601292
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1016/j.chroma.2013.03.026 [doi]
Output Language
Unknown(0)
PMID
23601292
Abstract
In this paper, ionic liquid coated magnetic nanoparticles (IL-MNPs) have been prepared by covalent immobilization. The as-synthesized MNPs have been successfully used as sorbent for the extraction of polycyclic aromatic hydrocarbons (PAHs) from water samples, the analytes being finally determined by gas chromatography/mass spectrometry. The influence of several experimental variables (including the ionic strength, amount of MNPs, sample volume, agitation time and desorption solvent) has been considered in depth in the optimization process. The developed method, which has been analytically characterized under its optimal operation conditions, allows the detection of the analytes in the samples with method detection limits in the range from 0.04mugL(-1) (fluoranthene) to 1.11mugL(-1) (indeno(1,2,3-cd)pyrene). The repeatability of the method, expressed as relative standard deviation (RSD, n=7), varies between 4.0% (benzo[b]fluoranthene) and 8.9% (acenaphthene), while the enrichment factors are in the range from 49 (naphthalene) to 158 (fluoranthene). The proposed procedure has been applied for the determination of thirteen PAHs in water samples (tap, river, well and reservoir ones) with recoveries in the range from 75 to 102%.
Descriptors
Links
Book Title
Database
Publisher
Elsevier B.V
Data Source
Authors
Galan-Cano,F., Alcudia-Leon Mdel,C., Lucena,R., Cardenas,S., Valcarcel,M.
Original/Translated Title
URL
Date of Electronic
20130402
PMCID
Editors
A novel coating based on carbon nanotubes/poly-ortho-phenylenediamine composite for headspace solid-phase microextraction of polycyclic aromatic hydrocarbons 2013 Department of Chemistry, Shahid Bahonar University of Kerman, P.O. Box 76169-133, Kerman, Iran.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Talanta
Periodical, Abbrev.
Talanta
Pub Date Free Form
15-Apr
Volume
108
Issue
Start Page
66
Other Pages
73
Notes
CI: Copyright (c) 2013; JID: 2984816R; 0 (Nanotubes, Carbon); 0 (Phenylenediamines); 0 (Polycyclic Hydrocarbons, Aromatic); 0 (Water Pollutants, Chemical); 0 (poly(o-phenylenediamine)); 12597-68-1 (Stainless Steel); 2013/01/08 [received]; 2013/02/14 [revi
Place of Publication
Netherlands
ISSN/ISBN
1873-3573; 0039-9140
Accession Number
PMID: 23601871
Language
eng
SubFile
Journal Article; IM
DOI
10.1016/j.talanta.2013.02.040 [doi]
Output Language
Unknown(0)
PMID
23601871
Abstract
A novel nanocomposite coating made of poly-o-phenylenediamine (PoPD) and oxidized multiwalled carbon nanotubes (MWCNTs) was electrochemically prepared for the first time on stainless steel wire. Subsequently, it was applied to headspace solid-phase microextraction (HS-SPME) and gas chromatographic analysis of biphenyl and seven polycyclic aromatic hydrocarbons (PAHs). The effects of polymerization potential, polymerization time, concentration of o-phenylenediamine and oxidized MWCNTs were investigated on the coating process. The fiber coating was carried out easily and in a reproducible manner, and the produced fiber was stable at high temperatures. The surface morphology of the coating was examined by scanning electron microscopy (SEM). The effects of various parameters on the efficiency of HS-SPME process, such as desorption temperature, desorption time, extraction temperature, extraction time and ionic strength were also studied. Under optimized conditions, the calibration graphs were linear in the range of 0.1-300 ng mL(-1), and the detection limits for biphenyl and PAHs studied were between 0.02 and 0.09 ng mL(-1). The intra-day and inter-day relative standard deviations obtained at 5 ng mL(-1) concentration level (n=5), using a single fiber, were 3.2-7.8% and 5.2-9.3%, respectively. The fiber-to-fiber RSD% (n=3) were 6.2-11.3% at 5 ng mL(-1). The proposed HS-SPME method was successfully applied for the analysis of PAHs in water samples.
Descriptors
Links
Book Title
Database
Publisher
Elsevier B.V
Data Source
Authors
Behzadi,M., Noroozian,E., Mirzaei,M.
Original/Translated Title
URL
Date of Electronic
20130304
PMCID
Editors