WTS database

Title Sort descending	Pub Year	Author	SearchLink
Lung function and fractional exhaled nitric oxide among petroleum refinery workers	2015	Department of Physiology, College of Medicine, King Saud University, Riyadh, Kingdom of Saudi Arabia ; Clinical Physiology, Department of Physiology (29), College of Medicine, King Khalid University Hospital, King Saud University, P.O. Box 2925, Riyadh, 1	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Journal of occupational medicine and toxicology (London, England) Periodical, Abbrev. J.Occup.Med.Toxicol. Pub Date Free Form 1-Oct Volume 10 Issue Start Page 37 Other Pages 015-0080-7. eCollection 2015 Notes LR: 20151007; JID: 101245790; OID: NLM: PMC4591067; OTO: NOTNLM; 2015 [ecollection]; 2015/06/10 [received]; 2015/09/21 [accepted]; 2015/10/01 [epublish]; epublish Place of Publication England ISSN/ISBN 1745-6673; 1745-6673 Accession Number PMID: 26435731 Language eng SubFile Journal Article DOI 10.1186/s12995-015-0080-7 [doi] Output Language Unknown(0) PMID 26435731 Abstract BACKGROUND: Occupational and environmental exposure to petroleum refinery products poses a great threat to human health. This study aimed to assess the lung function and Fractional Exhaled Nitric Oxide (FeNO) among petroleum refinery workers. METHODS: In this cross-sectional study, 112 participants (56 petroleum refinery workers with mean age 35.20 +/- 1.62 years, and 56 age, weight, height, ethnicity and socioeconomically matched control subjects with mean age 30.02 +/- 1.76 years) were recruited. A comprehensive clinical history and examination was conducted to decide whether to include in the study or not. Ventilatory lung function test parameters were recorded by using a Spirometer and Fractional Exhaled Nitric Oxide (FeNO) was measured by Niox Mino. RESULTS: A significant decline in lung function parameters FEV1 (p = 0.0001), FEV1/FVC Ratio (p = 0.01), PEF (p = 0.0001), FEF 25 % (p = 0.0001), FEF-50 % (p = 0.012) was observed among oil refinery workers compared to their matched controls. However, there was no difference in the mean values of FeNO between the groups. CONCLUSION: Subjects working in the petroleum refinery have significantly impaired lung functions. However, there was no change in the values of FENO between the groups. The lung function impairment pattern provide evidence in the favor of an obstructive lung disease. Descriptors Links Book Title Database Publisher Data Source Authors Meo,S.A., Alrashed,A.H., Almana,A.A., Altheiban,Y.I., Aldosari,M.S., Almudarra,N.F., Alwabel,S.A. Original/Translated Title URL Date of Electronic 20151001 PMCID PMC4591067 Editors
Lung function profiles and aerobic capacity of adult cigarette and hookah smokers after 12 weeks intermittent training	2015	Laboratory of Pharmacology, Faculty of Medicine of Sfax, University of Sfax, Sfax, Tunisia.; Research Unit (EM2S), Higher Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax, Tunisia.; Laboratory of Cardio-Circulatory, Respiratory,	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full The Libyan journal of medicine Periodical, Abbrev. Libyan J.Med. Pub Date Free Form 17-Feb Volume 10 Issue Start Page 26680 Other Pages Notes LR: 20151028; JID: 101299403; CIN: Libyan J Med. 2015;10:27760. PMID: 25920102; CIN: Libyan J Med. 2015;10:27760. PMID: 25906843; OID: NLM: PMC4332739; OTO: NOTNLM; 2015 [ecollection]; 2014/11/19 [received]; 2015/01/17 [revised]; 2015/01/19 [accepted]; ep Place of Publication Sweden ISSN/ISBN 1819-6357; 1819-6357 Accession Number PMID: 25694204 Language eng SubFile Journal Article; IM DOI 10.3402/ljm.v10.26680 [doi] Output Language Unknown(0) PMID 25694204 Abstract INTRODUCTION: Pulmonary function is compromised in most smokers. Yet it is unknown whether exercise training improves pulmonary function and aerobic capacity in cigarette and hookah smokers and whether these smokers respond in a similar way as do non-smokers. AIM: To evaluate the effects of an interval exercise training program on pulmonary function and aerobic capacity in cigarette and hookah smokers. METHODS: Twelve cigarette smokers, 10 hookah smokers, and 11 non-smokers participated in our exercise program. All subjects performed 30 min of interval exercise (2 min of work followed by 1 min of rest) three times a week for 12 weeks at an intensity estimated at 70% of the subject's maximum aerobic capacity (VO2max). Pulmonary function was measured using spirometry, and maximum aerobic capacity was assessed by maximal exercise testing on a treadmill before the beginning and at the end of the exercise training program. RESULTS: As expected, prior to the exercise intervention, the cigarette and hookah smokers had significantly lower pulmonary function than the non-smokers. The 12-week exercise training program did not significantly affect lung function as assessed by spirometry in the non-smoker group. However, it significantly increased both forced expiratory volume in 1 second and peak expiratory flow (PEF) in the cigarette smoker group, and PEF in the hookah smoker group. Our training program had its most notable impact on the cardiopulmonary system of smokers. In the non-smoker and cigarette smoker groups, the training program significantly improved VO2max (4.4 and 4.7%, respectively), v VO2max (6.7 and 5.6%, respectively), and the recovery index (7.9 and 10.5%, respectively). CONCLUSIONS: After 12 weeks of interval training program, the increase of VO2max and the decrease of recovery index and resting heart rate in the smoking subjects indicated better exercise tolerance. Although the intermittent training program altered pulmonary function only partially, both aerobic capacity and life quality were improved. Intermittent training should be advised in the clinical setting for subjects with adverse health behaviors. Descriptors Links Book Title Database Publisher Data Source Authors Koubaa,A., Triki,M., Trabelsi,H., Masmoudi,L., Zeghal,K.N., Sahnoun,Z., Hakim,A. Original/Translated Title URL Date of Electronic 20150217 PMCID PMC4332739 Editors
Magazine hyped: Trends in tobacco advertising and readership characteristics, 2010-2014	2016	National Institute on Minority Health and Health Disparities, Division of Intramural Research, Bethesda, Maryland, USA. Electronic address: sherine.el-toukhy@nih.gov.; National Institute on Minority Health and Health Disparities, Division of Intramural Re	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Preventive medicine Periodical, Abbrev. Prev.Med. Pub Date Free Form 9-Aug Volume Issue Start Page Other Pages Notes LR: 20160813; CI: Copyright (c) 2016; JID: 0322116; OTO: NOTNLM; 2016/06/02 [received]; 2016/07/13 [revised]; 2016/08/08 [accepted]; aheadofprint Place of Publication ISSN/ISBN 1096-0260; 0091-7435 Accession Number PMID: 27519170 Language ENG SubFile JOURNAL ARTICLE DOI S0091-7435(16)30223-7 [pii] Output Language Unknown(0) PMID 27519170 Abstract We tracked magazine advertisements for seven tobacco products in US magazines from 2010 to 2014 and examined magazine readership characteristics that are associated with advertising placement in 2014. Advertising data came from Kantar Media's Intelligence and readership data came from a 2014 Experian's nationally representative survey of 4667 adult tobacco users. At magazine level, we aggregated total and product-specific number of advertisements and expenditures by year and calculated readership demographics. We used linear and Poisson regression models to examine trends in number of tobacco advertisements and expenditures and readership characteristics associated with number of tobacco advertisements in 2014. Analyses were conducted in 2015. There were 5317 tobacco advertisements with expenditures of $796 million that appeared in 322 magazines during 2010-2014. Cigarette advertisements accounted for 2928 (55%), followed by e-cigarettes (n=862, 16%), and snus (n=534, 10%). Advertisements increased by 2.79ad/year for cigarettes, 1.94ad/year for e-cigarettes, and 0.78ad/year for chewing tobacco (p Descriptors Links Book Title Database Publisher . Published by Elsevier Inc Data Source Authors El-Toukhy,S.M., Choi,K. Original/Translated Title URL Date of Electronic 20160809 PMCID Editors
Magnetic ionic liquids as non-conventional extraction solvents for the determination of polycyclic aromatic hydrocarbons	2016	Departamento de Quimica (Area de Quimica Analitica), Universidad de La Laguna (ULL), La Laguna, Tenerife, 38206, Spain. Electronic address: mtrujill@ull.edu.es.; Department of Chemistry, Iowa State University, Ames, IA, 50011, USA. Electronic address: ona	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Analytica Chimica Acta Periodical, Abbrev. Anal.Chim.Acta Pub Date Free Form 31-Aug Volume 934 Issue Start Page 106 Other Pages 113 Notes CI: Copyright (c) 2016; JID: 0370534; OTO: NOTNLM; 2016/05/11 [received]; 2016/06/07 [revised]; 2016/06/08 [accepted]; 2016/06/15 [aheadofprint]; ppublish Place of Publication Netherlands ISSN/ISBN 1873-4324; 0003-2670 Accession Number PMID: 27506350 Language eng SubFile Journal Article; IM DOI 10.1016/j.aca.2016.06.014 [doi] Output Language Unknown(0) PMID 27506350 Abstract This work describes the applicability of magnetic ionic liquids (MILs) in the analytical determination of a group of heavy polycyclic aromatic hydrocarbons. Three different MILs, namely, benzyltrioctylammonium bromotrichloroferrate (III) (MIL A), methoxybenzyltrioctylammonium bromotrichloroferrate (III) (MIL B), and 1,12-di(3-benzylbenzimidazolium) dodecane bis[(trifluoromethyl)sulfonyl)]imide bromotrichloroferrate (III) (MIL C), were designed to exhibit hydrophobic properties, and their performance examined in a microextraction method for hydrophobic analytes. The magnet-assisted approach with these MILs was performed in combination with high performance liquid chromatography and fluorescence detection. The study of the extraction performance showed that MIL A was the most suitable solvent for the extraction of polycyclic aromatic hydrocarbons and under optimum conditions the fast extraction step required approximately 20 muL of MIL A for 10 mL of aqueous sample, 24 mmol L(-1) NaOH, high ionic strength content of NaCl (25% (w/v)), 500 muL of acetone as dispersive solvent, and 5 min of vortex. The desorption step required the aid of an external magnetic field with a strong NdFeB magnet (the separation requires few seconds), two back-extraction steps for polycyclic aromatic hydrocarbons retained in the MIL droplet with n-hexane, evaporation and reconstitution with acetonitrile. The overall method presented limits of detection down to 5 ng L(-1), relative recoveries ranging from 91.5 to 119%, and inter-day reproducibility values (expressed as relative standard derivation) lower than 16.4% for a spiked level of 0.4 mug L(-1) (n = 9). The method was also applied for the analysis of real samples, including tap water, wastewater, and tea infusion. Descriptors Links Book Title Database Publisher Elsevier B.V Data Source Authors Trujillo-Rodriguez,M.J., Nacham,O., Clark,K.D., Pino,V., Anderson,J.L., Ayala,J.H., Afonso,A.M. Original/Translated Title URL Date of Electronic 20160615 PMCID Editors
Magnetic micro-solid-phase-extraction of polycyclic aromatic hydrocarbons in water	2016	Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore; National University of Singapore Environmental Research Institute, T-Lab Building #02-01, 5A Engineering Drive 1, Singapore 117411, Singapore.; Depa	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 1-Apr Volume 1440 Issue Start Page 23 Other Pages 30 Notes CI: Copyright (c) 2016; JID: 9318488; 0 (Polycyclic Hydrocarbons, Aromatic); 0 (Water Pollutants, Chemical); 059QF0KO0R (Water); 7782-42-5 (Graphite); OTO: NOTNLM; 2015/11/22 [received]; 2016/02/14 [revised]; 2016/02/15 [accepted]; 2016/02/17 [aheadofprin Place of Publication Netherlands ISSN/ISBN 1873-3778; 0021-9673 Accession Number PMID: 26931424 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; IM DOI 10.1016/j.chroma.2016.02.046 [doi] Output Language Unknown(0) PMID 26931424 Abstract A novel sorbent, magnetic chitosan functionalized graphene oxide (MCFG) was synthesized and used in the micro-solid-phase-extraction (mu-SPE) and gas chromatography-mass spectrometric (GC-MS) analysis of polycyclic aromatic hydrocarbons (PAHs) from water. Through the use of the magnetic sorbent, the mu-SPE device also functioned as a stir bar during extraction. Three types of MCFG were prepared using glutaraldehyde cross-linked chitosan and graphene oxide with different amounts of magnetic nanoparticles (Fe3O4) (0.05g, 0.07g and 0.1g). The material was characterized using Fourier transform infrared spectroscopy and field emission scanning electron microscopy. Parameters affecting the extraction such as the type of sorbent, extraction and desorption times, volume of sample solution and type of desorption solvent were optimized. Under the most favourable conditions, the highest extraction was obtained by using the composite prepared with 0.1g of Fe3O4. For the latter material as sorbent, the linearity of the analytes was in the range of 0.01 and 100mugL(-1) for naphthalene, fluoranthene and pyrene while acenaphthylene and phenanthrene exhibited linearity in the range of 0.05 and 100mugL(-1). For fluorene and anthracene, the linearity range was from 0.01 to 50mugL(-1). The coefficients of determination (r(2)) associated with the above linear ranges were higher than 0.987. The limits of detection from GC-MS analysis of the seven PAHs were in the range 0.2-1.8ngL(-1); limits of quantification were between 0.8 and 5.9ngL(-1) while the relative standard deviations (RSDs) varied from 2.1 to 8.2%. The recoveries of the method for the compounds at spiking levels of 1 and 5mugL(-1) were in the range 67.5-106.9% with RSDs below 15%. The enrichment factors were found to be in between 67 and 302. The developed method afforded an interesting and innovative approach using MCFG as an efficient and promising sorbent. Descriptors Links Book Title Database Publisher Elsevier B.V Data Source Authors Naing,N.N., Yau Li,S.F., Lee,H.K. Original/Translated Title URL Date of Electronic 20160217 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
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 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
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 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

E-mail