WTS database

Title	Pub Year Sort ascending	Author	SearchLink
Effects of environmental tobacco smoke on respiratory health of boys and girls from kindergarten: results from 15 districts of northern China	2007	Department of Biostatistics and Epidemiology, School of Public Health, China Medical University, Shenyang, Liaoning province, China.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Indoor air Periodical, Abbrev. Indoor Air Pub Date Free Form Dec Volume 17 Issue 6 Start Page 475 Other Pages 483 Notes LR: 20130520; JID: 9423515; 0 (Tobacco Smoke Pollution); ppublish Place of Publication Denmark ISSN/ISBN 0905-6947; 0905-6947 Accession Number PMID: 18045272 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; IM DOI INA495 [pii] Output Language Unknown(0) PMID 18045272 Abstract The effects of childhood environmental tobacco smoke (ETS) exposure on respiratory symptoms were investigated in 6053 kindergarten-aged children residing in 15 districts of northern China. Responses to a self-administered questionnaire completed by parents of children from 30 kindergartens were used to ascertain children with persistent cough, persistent phlegm, asthma symptom, current asthma, wheeze and wheeze without asthma. In first 2 years ETS exposure and current ETS exposure were associated with increased prevalence of persistent cough, persistent phlegm, wheeze and wheeze without asthma. Among boys, ETS exposure was associated with more respiratory symptoms and diseases than in girls. ETS exposure during pregnancy was associated with asthma symptom [odds ratio (OR), 3.00; 95% confidence interval (CI): 1.28-7.03], current asthma (OR, 3.38; 95% CI: 1.25-9.14), persistent cough (OR, 1.64; 95% CI: 1.13-2.37), persistent phlegm (OR, 1.74; 95% CI: 1.01-3.01), wheeze (OR, 1.75; 95% CI: 1.15-2.68), and wheeze without asthma (OR, 1.46; 95% CI: 1.01-2.37) only among boys. In boys, the adjusted ORs for increased risk of asthma symptom and current asthma for household exposures (> or =10 cigarettes smoked per day vs. none smoked) during workday were 2.04 (95% CI: 1.01-3.89) and 2.76 (95% CI: 1.06-9.58), respectively. We conclude that ETS exposure increases the occurrence of respiratory symptoms and diseases during childhood. Boys may be more susceptible to ETS than girls. PRACTICAL IMPLICATIONS: Environmental tobacco smoke (ETS) is a highly prevalent respiratory irritant. In agreement with previous cross-sectional studies, our study indicates that exposure to ETS may increase the occurrence of respiratory symptoms and diseases in children, and the association of ETS exposure and respiratory health of children increased in strength with number of cigarettes smoked inside the house per day during workday and day-off. Boys may be more susceptible to ETS than girls. These findings support the view that measures should be taken to reduce ETS exposure for children. Descriptors Child, Child, Preschool, China, Cross-Sectional Studies, Environmental Exposure/adverse effects, Female, Humans, Infant, Male, Prevalence, Respiratory Tract Diseases/epidemiology/etiology, Students, Tobacco Smoke Pollution/adverse effects Links Book Title Database Publisher Data Source Authors Dong,G. H., Cao,Y., Ding,H. L., Ma,Y. N., Jin,J., Zhao,Y. D., He,Q. C. Original/Translated Title URL Date of Electronic PMCID Editors
Smoking in the absence of nicotine: behavioral, subjective and physiological effects over 11 days	2007	Behavioral Pharmacology Research Unit, Department of Psychiatry, Johns Hopkins University School of Medicine, Baltimore, MD, USA. edonny@pitt.edu	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Addiction (Abingdon, England) Periodical, Abbrev. Addiction Pub Date Free Form Feb Volume 102 Issue 2 Start Page 324 Other Pages 334 Notes LR: 20151119; GR: CA99241/CA/NCI NIH HHS/United States; GR: DA016289/DA/NIDA NIH HHS/United States; GR: DA019626/DA/NIDA NIH HHS/United States; GR: M01 RR02719/RR/NCRR NIH HHS/United States; JID: 9304118; 6M3C89ZY6R (Nicotine); CIN: Addiction. 2007 Feb;10 Place of Publication England ISSN/ISBN 0965-2140; 0965-2140 Accession Number PMID: 17222288 Language eng SubFile Journal Article; Randomized Controlled Trial; Research Support, N.I.H., Extramural; IM DOI ADD1670 [pii] Output Language Unknown(0) PMID 17222288 Abstract AIMS: Sensorimotor stimuli associated with tobacco smoking influence smoking behavior; however, current research has focused almost exclusively on the effects of brief, laboratory-based exposure to smoking-related stimuli. The purpose of this experiment was to characterize the effects of smoking stimuli delivered in the absence of nicotine over an extended (11-day) exposure. DESIGN, SETTING AND PARTICIPANTS: Thirty adult regular smokers participated in an in-patient study. After assessing preferred brand smoking, participants were assigned randomly to one of three groups corresponding to subsequent smoking conditions: nicotine-containing cigarettes, de-nicotinized cigarettes or no smoking. MEASUREMENTS: Measures of smoking reinforcement, subjective effects, physiological effects, withdrawal/craving and puff topography were taken repeatedly during both periods of free access and controlled assessments during abstinence. FINDINGS: Daily de-nicotinized cigarette use declined immediately by 1.7 cigarettes/day compared to the preferred brand baseline and declined by another 3.5 cigarettes over time; participants smoking de-nicotinized cigarettes also demonstrated a 31% decline in the number of puffs earned on a progressive ratio, a measure of the motivation to smoke, during the study. Subjective ratings of smoking were largely negative throughout the study in the de-nicotinized group, while the nicotine-containing condition reported increasingly positive subjective effects with repeated exposure. Acute craving suppression following smoking remained evident throughout the study regardless of nicotine content. CONCLUSIONS: These effects highlight the importance of non-nicotine sensorimotor stimuli as determinants of the maintenance of smoking behavior and suggests that extinction of conditioned reinforcement in the absence of nicotine progresses slowly. Descriptors Adolescent, Adult, Affect/drug effects, Aged, Female, Humans, Male, Middle Aged, Nicotine, Personal Satisfaction, Sleep/drug effects, Smoking/physiopathology/psychology, Smoking Cessation/psychology, Substance Withdrawal Syndrome/physiopathology/psychology, Surveys and Questionnaires Links Book Title Database Publisher Data Source Authors Donny,E. C., Houtsmuller,E., Stitzer,M. L. Original/Translated Title URL Date of Electronic PMCID Editors
Contributions of silane cross-linked PEX pipe to chemical/solvent odours in drinking water	2007	Civil and Environmental Engineering, Virginia Polytechnic Institute and State University, 418 Durham Hall, Blacksburg, VA, 24061-0246, USA. mdurand@vt.edu	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Water science and technology : a journal of the International Association on Water Pollution Research Periodical, Abbrev. Water Sci.Technol. Pub Date Free Form Volume 55 Issue 5 Start Page 153 Other Pages 160 Notes LR: 20131121; JID: 9879497; 0 (Chloramines); 0 (Disinfectants); 0 (Silanes); 0 (Solvents); 0 (Water Pollutants); 10599-90-3 (chloramine); 4R7X1O2820 (Chlorine); 9002-88-4 (Polyethylene); ppublish Place of Publication England ISSN/ISBN 0273-1223; 0273-1223 Accession Number PMID: 17489405 Language eng SubFile Journal Article; Research Support, U.S. Gov't, Non-P.H.S.; IM DOI Output Language Unknown(0) PMID 17489405 Abstract A commonly used plastic plumbing pipe, silane-cross-linked polyethylene (PEX-b according to European standards), was investigated using the Utility Quick Test (UQT), which is a migration/leaching protocol recommended for evaluating taste-and-odour properties of materials prior to installation in distribution systems. After exposure of new PEX pipe to chlorine, monochloramine or no disinfectant, the odours in the leachate were described as "chlorinous" if chlorine or monochloramine were present and "chemical/solvent-like" with descriptors of sweet, bitter, chemical, solvent, plastic, burnt and mechanical/motor oil. The presence of disinfectant, chlorine or chloramines, did not alter the odour characteristics or intensity of the PEX odour. The "chemical/solvent-like" odours persisted even after multiple flushing periods. 2-Ethoxy-2-methylpropane, commonly called ETBE, was identified as a contributor to the described odour from the PEX pipe. Aqueous concentrations of ETBE in pipe leachate ranged from a low of 23 microg/L to > 100 microg/L. The concentrations decreased with increased flushing. Panelists were able to smell ETBE at a concentration of 5 microg/L and assigned a rating of a weak odour. The need for taste and odour testing of plumbing materials prior to use in residential housing systems is necessary. Descriptors Chloramines/chemistry, Chlorine/chemistry, Disinfectants/pharmacology, Environmental Monitoring/methods, Odors/analysis, Polyethylene/chemistry, Silanes/chemistry, Solid Phase Microextraction, Solvents/chemistry, Water Pollutants, Water Purification/methods, Water Supply Links Book Title Database Publisher Data Source Authors Durand,M. L., Dietrich,A. M. Original/Translated Title URL Date of Electronic PMCID Editors
Experimental based experiences with the introduction of a water safety plan for a multi-located university clinic and its efficacy according to WHO recommendations	2007	Kramer, A., Institute for Hygiene and Environmental Medicine, Ernst-Moritz-Arndt-University, 17489 Greifswald, Germany	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full BMC Public Health Periodical, Abbrev. BMC Public Health Pub Date Free Form 2007/ Volume 7 Issue Start Page Other Pages Notes Place of Publication ISSN/ISBN 1471-2458 Accession Number Language SubFile DOI Output Language Unknown(0) PMID Abstract Background. Due to the high number of immunosuppressed and other predisposed patients hospitals have to control and ensure the microbiological water quality. The origin for the occurrence of pathogenic microorganisms in water pipes is the formation of biofilm. Methods. For the permanent control of water safety a water safety plan (WSP) was realized as recommended by the WHO following the principle "search and destroy". The WSP is based on an established HACCP concept due to the special focus. The most important measures include the concept for sample taking depending on patient risk. 3 different categories) are distinguished: risk area1 (high infection risk), risk 2 (moderate infection risk), and risk area 3 (not increased infection risk). Additionally to the threshold value of the German law for the quality of drinking water (TrinkwV) three more limiting values were defined (warning, alert, and worst case) for immediate risk adapted reaction. Additional attention has to be focussed on lavatory sinks, which are an open bacterial reservoir. Therefore continuous disinfecting siphons were installed as part of the WSP in high risk areas. If extended technical equipment is not available, especially for immunocompromised patients the following measures are easy to realize: boiled (or sun exposed) water for nursing procedures as well alimentary use, no showering. Results. Comparing data over 3 years the microbial water quality was significantly improved resulting in no new case of nosocomial Legionella pneumoniae and decrease in neonatal sepsis. Conclusion. According to average situations with highly contaminated water system the management must be defined with implementation of water task force, immediate providing of special equipment, information of patients and staff and control of the water quality, an example for successful decontamination of the hospital within 24 hours is given. Â© 2007 Dyck et al; licensee BioMed Central Ltd. Descriptors drinking water, water, article, bacterium, disinfection, hospital infection, immunocompromized patient, infection risk, Legionella, newborn sepsis, risk, safety, sun exposure, university hospital, water quality, water sampling, world health organization Links Book Title Database Embase; MEDLINE Publisher Data Source Embase Authors Dyck,A., Exner,M., Kramer,A. Original/Translated Title URL Date of Electronic PMCID Editors
Decreased respiratory symptoms in cannabis users who vaporize	2007	Earleywine, M., Department of Psychology, University at Albany, State University of New York, Albany, NY 12222, United States	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Harm Reduction Journal Periodical, Abbrev. Harm Reduct.J. Pub Date Free Form 2007/04 Volume 4 Issue Start Page Other Pages Notes Place of Publication ISSN/ISBN 1477-7517 Accession Number Language SubFile DOI Output Language Unknown(0) PMID Abstract Cannabis smoking can create respiratory problems. Vaporizers heat cannabis to release active cannabinoids, but remain cool enough to avoid the smoke and toxins associated with combustion. Vaporized cannabis should create fewer respiratory symptoms than smoked cannabis. We examined self-reported respiratory symptoms in participants who ranged in cigarette and cannabis use. Data from a large Internet sample revealed that the use of a vaporizer predicted fewer respiratory symptoms even when age, sex, cigarette smoking, and amount of cannabis used were taken into account. Age, sex, cigarettes, and amount of cannabis also had significant effects. The number of cigarettes smoked and amount of cannabis used interacted to create worse respiratory problems. A significant interaction revealed that the impact of a vaporizer was larger as the amount of cannabis used increased. These data suggest that the safety of cannabis can increase with the use of a vaporizer. Regular users of joints, blunts, pipes, and water pipes might decrease respiratory symptoms by switching to a vaporizer. Â© 2007 Earleywine and Barnwell; licensee BioMed Central Ltd. Descriptors cannabis, adult, age distribution, aged, article, cannabis smoking, chi square test, smoking, controlled study, drug delivery system, drug safety, female, human, Internet, logistic regression analysis, major clinical study, male, prediction, respiratory tract disease, self report, sex ratio, vaporizer Links Book Title Database Embase Publisher Data Source Embase Authors Earleywine,M., Barnwell,S. S. Original/Translated Title URL Date of Electronic PMCID Editors
The effect of thermocycling on the adhesion of self-etching adhesives on dental enamel and dentin	2007	Department of Dental Biomaterials, Faculty of Dentistry, Alexandria University, Alexandria, Egypt.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full The journal of contemporary dental practice Periodical, Abbrev. J.Contemp.Dent.Pract. Pub Date Free Form 1-Feb Volume 8 Issue 2 Start Page 17 Other Pages 24 Notes LR: 20100826; JID: 101090552; 0 (Composite Resins); 0 (Dentin-Bonding Agents); 0 (Polymethacrylic Acids); 0 (Prime and Bond NT); 0 (Prompt L-Pop); 0 (Resin Cements); 0 (Xeno III); epublish Place of Publication United States ISSN/ISBN 1526-3711; 1526-3711 Accession Number PMID: 17277823 Language eng SubFile Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; D; IM DOI 1526-3711-372 [pii] Output Language Unknown(0) PMID 17277823 Abstract AIM: The aim of the present study was to investigate the effectiveness of one total-etch self-priming adhesive and two one-step self-etching adhesive systems on the adhesion of a resin composite to both dentin and enamel. The effect of thermocycling on the adhesion was also investigated. The null hypothesis tested was thermocycling would not affect bond strengths to enamel and dentin treated with self-etching adhesives or a total-etch adhesive. METHODS AND MATERIALS: Two single-step self-etching adhesives [Xeno III (XE3) and Prompt L-Pop (PP)] and one two-step total-etch adhesive system (Prime & Bond NT) (P&B NT) were used in this study. Thirty caries-free unrestored human third molars were used to make specimens of enamel and dentin. Different adhesives were applied on enamel and dentin surfaces according to the manufacturer's instructions then hybrid composite restorative material was condensed on the surface using a mold. The bonded specimens were stored in distilled water at 37 masculineC for 24 hours before being tested. Half of the bonded specimens were tested for shear bond strength without thermocycling. The other half of the test specimens were thermocycled using a thermocycling apparatus in water baths held at 5 masculineC and 55 masculineC with a dwell time of one minute each for 10,000 cycles prior to shear testing. The mean shear bond strength before and after thermocycling was calculated, and the results were subjected to two-way analysis of variance (ANOVA) and repeated measure design to show the interaction between different materials and different times. RESULTS: The results showed shear bond strength on both enamel and dentin of the total-etch adhesive and the self-etching adhesives decreased after the specimens were subjected to thermocycling. CONCLUSIONS: The null hypothesis tested "thermocycling would not affect bond strengths treated with self-etching adhesives" was rejected. Furthermore, the study revealed the following: 1. The shear bond strength to both enamel and dentin of the total-etch adhesive and the self-etching adhesives decreased after the specimens were subjected to thermocycling. 2. XE3 achieved the highest bond strength to both enamel and dentin (26.994+/-1.17 and 25.22+/-1.26, respectively). 3. XE3 showed even better bonding after thermocycling to enamel and dentin than the total-etching system or PP. 4. Although PP bonded to enamel showed lower shear bond strength value than XE3, it has durable bond strength even after thermocycling. Descriptors Composite Resins, Dental Bonding, Dental Enamel, Dental Etching/methods, Dental Stress Analysis, Dentin, Dentin-Bonding Agents, Hot Temperature, Humans, Polymethacrylic Acids, Resin Cements, Shear Strength, Smear Layer Links Book Title Database Publisher Data Source Authors El-Araby,A. M., Talic,Y. F. Original/Translated Title URL Date of Electronic 20070201 PMCID Editors
Tobacco control in Bahrain: An overview	2007	Fadhil, I., Non-Communicable Diseases Unit, Ministry of Health, Manama, Bahrain	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Eastern Mediterranean Health Journal Periodical, Abbrev. East.Mediterr.Health J. Pub Date Free Form / Volume 13 Issue 3 Start Page 719 Other Pages 726 Notes Place of Publication ISSN/ISBN 1020-3397 Accession Number Language SubFile DOI Output Language Unknown(0) PMID Abstract Tobacco, control interventions in Bahrain started in the late 1970s and tobacco legislation was introduced in 1994. The tobacco control approach incorporated the international recommended strategies according to the Gulf Cooperation Council and World Health Organization. Recently the tobacco control plan and tobacco legislation were reviewed. A new national comprehensive plan is put forward for implementation by the Ministry of Health. This report examines the Bahrain tobacco control approach, focusing on tobacco legislation, youth smoking, waterpipe smoking, tobacco surveillance and the smoking cessation plan. A number of recommendations for further improvement are discussed. Descriptors amfebutamone, nicotine, Bahrain, behavior therapy, child behavior, disease surveillance, gender bias, government regulation, health education, health promotion, human, law enforcement, nicotine replacement therapy, public health problem, review, smoking, smoking cessation, tobacco dependence, tobacco industry, treatment planning, world health organization Links Book Title Database Embase; MEDLINE Publisher Data Source Embase Authors Fadhil,I. Original/Translated Title URL Date of Electronic PMCID Editors
Quit attempts and intention to quit cigarette smoking among young adults in the United States	2007	Division of Cancer Control and Population Sciences, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892-7337, USA. faganp@mail.nih.gov	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full American Journal of Public Health Periodical, Abbrev. Am.J.Public Health Pub Date Free Form Aug Volume 97 Issue 8 Start Page 1412 Other Pages 1420 Notes LR: 20140904; GR: N01-CO-12400/CO/NCI NIH HHS/United States; JID: 1254074; OID: NLM: PMC1931471; 2007/06/28 [aheadofprint]; ppublish Place of Publication United States ISSN/ISBN 1541-0048; 0090-0036 Accession Number PMID: 17600244 Language eng SubFile Journal Article; Research Support, N.I.H., Extramural; AIM; IM DOI AJPH.2006.103697 [pii] Output Language Unknown(0) PMID 17600244 Abstract OBJECTIVES: We investigated variables associated with quitting behaviors among current, daily, and nondaily young adult smokers in the United States. METHODS: Data from the national 2003 Tobacco Use Special Cessation Supplement to the Current Population Survey were analyzed to identify factors associated with quit attempts and serious intention to quit among young adult smokers aged 18 to 30 years (n=7912). RESULTS: Daily smokers who smoked 20 or more cigarettes per day, had their first cigarette within 30 minutes of waking, and smoked no usual type were less likely than were their comparison groups to have 1 more or quit attempts. Nondaily smokers who were male, Hispanic, and smoked no usual type of cigarette were also less likely than were their comparison groups to report 1 or more quit attempts. Although unemployed nondaily smokers were more likely than were the employed to report intention to quit, nondaily smokers with an annual family income of $25,000 to $49,000 were less likely than were higher-income families to report intention to quit. CONCLUSIONS: Nicotine dependence measures were significantly associated with quitting and intention to quit among daily smokers, but sociodemographics were associated with quitting and intention to quit among nondaily smokers. Descriptors Adolescent, Adult, Cross-Sectional Studies, Female, Health Behavior, Humans, Intention, Logistic Models, Male, Multivariate Analysis, Prevalence, Smoking/epidemiology/prevention & control/psychology, Smoking Cessation/ethnology/psychology/statistics & numerical data, Socioeconomic Factors, United States/epidemiology Links Book Title Database Publisher Data Source Authors Fagan,P., Augustson,E., Backinger,C. L., O'Connell,M. E., Vollinger,R. E.,Jr, Kaufman,A., Gibson,J. T. Original/Translated Title URL Date of Electronic 20070628 PMCID PMC1931471 Editors
Molecular identification of the microbiota of French sourdough using temporal temperature gradient gel electrophoresis	2007	Laboratoire de Microbiologie Alimentaire et Industrielle (LMAI), Unite de Recherche QM2A, ENITIAA, rue de la Geraudiere, BP 82225, 44322, Nantes Cedex 3, France. mounir.ferchichi@yahoo.fr	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Food Microbiology Periodical, Abbrev. Food Microbiol. Pub Date Free Form Oct-Dec Volume 24 Issue 8-Jul Start Page 678 Other Pages 686 Notes JID: 8601127; 0 (DNA, Bacterial); 0 (DNA, Ribosomal); 0 (RNA, Ribosomal, 16S); 2007/01/18 [received]; 2007/04/17 [revised]; 2007/04/19 [accepted]; 2007/05/03 [aheadofprint]; ppublish Place of Publication England ISSN/ISBN 0740-0020; 0740-0020 Accession Number PMID: 17613364 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; IM DOI S0740-0020(07)00057-3 [pii] Output Language Unknown(0) PMID 17613364 Abstract The microbiota of four industrial French sourdoughs (BF, GO, VB and RF) was characterized by PCR temporal temperature gel electrophoresis (TTGE). The TTGE technique reveals differences in the 16S rDNA V6-V8 regions of these bacteria. DNA was extracted directly from sourdough samples. A specific TTGE fingerprint was determined for 30 bacterial species, including members of the genera Lactobacillus, Leuconostoc and Weissella, all known to be present in sourdough. These sourdoughs contain different species of lactic acid bacteria (LAB) depending on ecological conditions prevailing in the different sourdough fermentations. Only a few LAB species were found to be competitive and became dominant. Lactobacillus sanfranciscensis was observed as the most frequently found species. In sourdough GO, L. sanfranciscensis, Lactobacillus panis and two new species, Lactobacillus nantensis and Lactobacillus hammesii, were detected. Sourdough BF contain L. sanfranciscensis, Lactobacillus spicheri and Lactobacillus pontis. In sourdough VB, which differed in the process temperature, we identified exclusively L. sanfranciscensis and Leuconostoc mesenteroides subsp. mesenteroides. Lactobacillus frumenti, L. hammesii and Lacobacillus paralimentarius became the predominant species in sourdough RF. Compared with conventional bacteriological methods, the use of this new molecular approach to analyze the sourdough ecosystem should therefore allow a more complete and rapid assessment of its specific microbiota. Descriptors Bread/microbiology, Colony Count, Microbial, DNA, Bacterial/chemistry/genetics, DNA, Ribosomal/chemistry/genetics, Electrophoresis, Agar Gel/methods, Fermentation, Food Microbiology, Lactobacillus/classification/isolation & purification, Leuconostoc/classification/isolation & purification, Phylogeny, Polymerase Chain Reaction/methods, RNA, Ribosomal, 16S/chemistry/genetics, Species Specificity, Temperature Links Book Title Database Publisher Data Source Authors Ferchichi,M., Valcheva,R., Prevost,H., Onno,B., Dousset,X. Original/Translated Title URL Date of Electronic 20070503 PMCID Editors
Solid-phase microextraction-gas chromatographic-tandem mass spectrometric analysis of polycyclic aromatic hydrocarbons. Towards the European Union water directive 2006/0129 EC	2007	Department of Analytical Chemistry, University of A Coruna, Campus da Zapateira, E-15071 A Coruna, Spain.	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 28-Dec Volume 1176 Issue 2-Jan Start Page 48 Other Pages 56 Notes LR: 20090115; JID: 9318488; 0 (Polycyclic Compounds); 0 (Water Pollutants, Chemical); 2007/08/16 [received]; 2007/10/31 [revised]; 2007/11/02 [accepted]; 2007/11/09 [aheadofprint]; ppublish Place of Publication Netherlands ISSN/ISBN 0021-9673; 0021-9673 Accession Number PMID: 18037429 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; IM DOI S0021-9673(07)01924-3 [pii] Output Language Unknown(0) PMID 18037429 Abstract This article presents a solid-phase microextraction (SPME) procedure to determine 27 parent and alkylated polycyclic aromatic hydrocarbons (PAHs) with diverging polarities and molecular masses in various types of water samples (tap, well, superficial, and seawater). A 65-microm polydimethylsiloxane-divinylbenzene (PDMS/DVB) fiber was used, and parameters affecting the extraction procedures such as extraction temperature and time, desorption temperature and time, splitless time, effect of an organic modifier or ionic adjustment were studied. The linearity and precision of the proposed method were satisfactory. The use of GC-MS determination in the full scan mode, in the selected ion monitoring (SIM) mode, and in the GC-MS-MS mode provided the unequivocal identification and quantification of the target analytes. Moreover, the proposed SPME-GC-MS-MS method, extracting only 18 ml of sample, reached the very restrictive limits fixed by the 2006/0129 EC proposal for a new water directive to be achieved by 2015. The matrix effects were evaluated through the analysis of tap, well, superficial, and seawater. A discussion on different behaviors, a result of the matrix effects, was included. Analytical recoveries were satisfactory in all cases. The novelty of this work consisted in the wide range of analyzed PAHs, the very low detection limits that were reached, the coupling of SPME-GC-MS-MS, and the study of the matrix effect on water samples. With this developed procedure, detection limits between 0.07 and 0.76 ng l(-1) and quantification limits between 0.10 and 0.98 ng l(-1) were obtained with MS-MS detection. Moreover, the analytical recoveries for different aqueous matrices were near 100% in all cases. Descriptors European Union, Gas Chromatography-Mass Spectrometry/methods, Hydrogen-Ion Concentration, Osmolar Concentration, Polycyclic Compounds/analysis, Tandem Mass Spectrometry/methods, Water Pollutants, Chemical/analysis Links Book Title Database Publisher Data Source Authors Fernandez-Gonzalez,V., Concha-Grana,E., Muniategui-Lorenzo,S., Lopez-Mahia,P., Prada-Rodriguez,D. Original/Translated Title URL Date of Electronic 20071109 PMCID Editors

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