WTS database

Title	Pub Year Sort ascending	Author	SearchLink
Second-hand smoke in mental healthcare settings: time to implement total smoke-free bans?	2013	Tobacco Control Unit, Cancer Prevention and Control Program, Institut Catala d'Oncologia, L'Hospitalet de Llobregat, Barcelona, Spain.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full International journal of epidemiology Periodical, Abbrev. Int.J.Epidemiol. Pub Date Free Form Jun Volume 42 Issue 3 Start Page 886 Other Pages 893 Notes JID: 7802871; 0 (Particulate Matter); 0 (Tobacco Smoke Pollution); CIN: Int J Epidemiol. 2013 Jun;42(3):894-5. PMID: 23918856; OTO: NOTNLM; 2013/03/29 [aheadofprint]; ppublish Place of Publication England ISSN/ISBN 1464-3685; 0300-5771 Accession Number PMID: 23543600 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; IM DOI 10.1093/ije/dyt014 [doi] Output Language Unknown(0) PMID 23543600 Abstract BACKGROUND: Second-hand smoke is associated with adverse health effects. Many countries have extended smoke-free policies to public buildings and workplaces such as hospitals, but mental health units have usually been exempted from complete smoke-free bans. The objective of this study was to evaluate second-hand smoke levels in mental health units with different types of smoking bans. Method We conducted a cross-sectional study to evaluate second-hand smoke in 64 mental health inpatient units (95.5% of the all such units) in Catalonia, Spain. We measured air concentrations of particulate matter Descriptors Links Book Title Database Publisher Data Source Authors Ballbe,M., Sureda,X., Martinez-Sanchez,J.M., Salto,E., Gual,A., Fernandez,E. Original/Translated Title URL Date of Electronic 20130329 PMCID Editors
CO exposure and puff topography are associated with Lebanese waterpipe dependence scale score	2013	Department of Clinical Pharmacy, Jordan University of Science and Technology, Irbid, Jordan;	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco Periodical, Abbrev. Nicotine Tob.Res. Pub Date Free Form Oct Volume 15 Issue 10 Start Page 1782 Other Pages 1786 Notes LR: 20150427; GR: R01 DA025659/DA/NIDA NIH HHS/United States; GR: R01CA120142/CA/NCI NIH HHS/United States; GR: R01DA025659/DA/NIDA NIH HHS/United States; GR: R03TW008371./TW/FIC NIH HHS/United States; JID: 9815751; 0 (Tobacco Smoke Pollution); 7U1EE4V452 Place of Publication England ISSN/ISBN 1469-994X; 1462-2203 Accession Number PMID: 23616231 Language eng SubFile Clinical Trial; Journal Article; Research Support, N.I.H., Extramural; IM DOI 10.1093/ntr/ntt049 [doi] Output Language Unknown(0) PMID 23616231 Abstract INTRODUCTION: Waterpipe tobacco smoking involves self-administration of the dependence-producing drug nicotine. Few studies have examined if dependence in waterpipe smokers influences toxicant exposure and smoking behavior. METHOD: Current waterpipe tobacco smokers were categorized based on Lebanese Waterpipe Dependence Scale-11 (LWDS-11) score (LWDS-11: LOW 13; N = 59). Participants abstained from smoking for 12 hr and then completed a single 30-min waterpipe tobacco smoking episode. Expired-air carbon monoxide (CO) was measured before and 5 min after smoking and puff topography was measured during smoking. RESULTS: Total mean smoking time was 30.9 min (SD = 3.5) and did not differ significantly by LWDS-11 score. CO boost was greater for participants in the HIGH versus LOW groups (62.3 vs. 43.6 ppm, p Descriptors Links Book Title Database Publisher Data Source Authors Alzoubi,K.H., Khabour,O.F., Azab,M., Shqair,D.M., Shihadeh,A., Primack,B., Eissenberg,T. Original/Translated Title URL Date of Electronic 20130424 PMCID PMC3842104 Editors
Environmental monitoring of complex hydrocarbon mixtures in water and soil samples after solid phase microextraction using PVC/MWCNTs nanocomposite fiber	2013	Department of Chemistry, Faculty of Sciences, Azarbijan Shahid Madani University, 53714-161 Tabriz, Iran. Electronic address: matinchem@gmail.com.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Chemosphere Periodical, Abbrev. Chemosphere Pub Date Free Form Nov Volume 93 Issue 9 Start Page 1920 Other Pages 1926 Notes CI: Copyright (c) 2013; JID: 0320657; 0 (Nanotubes, Carbon); 0 (Polycyclic Hydrocarbons, Aromatic); 0 (Soil); 0 (Soil Pollutants); 0 (Water Pollutants, Chemical); 9002-86-2 (Polyvinyl Chloride); OTO: NOTNLM; 2012/12/04 [received]; 2013/06/22 [revised]; 20 Place of Publication England ISSN/ISBN 1879-1298; 0045-6535 Accession Number PMID: 23906812 Language eng SubFile Journal Article; IM DOI 10.1016/j.chemosphere.2013.06.072 [doi] Output Language Unknown(0) PMID 23906812 Abstract A novel nanocomposite based on incorporation of multiwalled carbon nanotubes (MWCNTs) in polyvinyl chloride (PVC) was prepared. Proposed nanocomposite was coated on stainless steel wire by deep coating. Composition of nanocomposite was optimized based on results of morphological studies using scanning electron microscopy. The best composition (83% MWCNTs:17% PVC) was applied as a solid phase microextraction fiber. Complex mixture of aromatic (BTEX) and aliphatic hydrocarbons (C5-C34) were selected as model analytes, and performance of proposed fiber in extraction of the studied compounds from water and soil samples was evaluated. Analytical merits of the method for water samples (LODs=0.10-1.10 ng L(-1), r(2)=0.9940-0.9994) and for soil samples (LODs=0.10-0.77 ng kg(-1), r(2)=0.9946-0.9994) showed excellent characteristics of it in ultra trace determination of petroleum type environmental pollutants. Finally, the method was used for determination of target analytes in river water, industrial effluent and soil samples. Descriptors Links Book Title Database Publisher Elsevier Ltd Data Source Authors Matin,A.A., Biparva,P., Gheshlaghi,M., Farhadi,K., Gheshlaghi,A. Original/Translated Title URL Date of Electronic 20130729 PMCID Editors
Gastroesophageal reflux disease, proton-pump inhibitor use and Barrett's esophagus in esophageal adenocarcinoma: Trends revisited	2013	Division of Thoracic and Foregut Surgery, Department of Surgery, University of Rochester Medical Center, Rochester, NY.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Surgery Periodical, Abbrev. Surgery Pub Date Free Form Oct Volume 154 Issue 4 Start Page 856 Other Pages 64; discussion 864-6 Notes CI: Copyright (c) 2013; JID: 0417347; 0 (Proton Pump Inhibitors); 2013/03/07 [received]; 2013/07/19 [accepted]; ppublish Place of Publication United States ISSN/ISBN 1532-7361; 0039-6060 Accession Number PMID: 24074425 Language eng SubFile Journal Article; AIM; IM DOI 10.1016/j.surg.2013.07.020 [doi] Output Language Unknown(0) PMID 24074425 Abstract PURPOSE: Screening for esophageal adenocarcinoma (EAC) has not become policy in part over concerns in identifying the high-risk group. It is often claimed that a significant proportion of patients developing EAC do not report preexisting reflux symptoms or prior treatment for gastroesophageal reflux disease (GERD). As such, our aim was to assess the prevalence of GERD symptoms, proton pump inhibitor (PPI) use and Barrett's esophagus (BE) and their impact on survival in patients undergoing esophagectomy for EAC. METHODS: The study population consisted of 345 consecutive patients who underwent esophagectomy for EAC between 2000 and 2011 at a university-based medical center. Patients with a diagnosis of esophageal squamous cell carcinoma and those who underwent esophagectomy for benign disease were excluded. The prevalence of preoperative GERD symptoms, defined as presence of heartburn, regurgitation or epigastric pain, PPI use (>6 months) and BE, defined by the phrases "Barrett's esophagus," "intestinal epithelium," "specialized epithelium," or "goblet cell metaplasia" in the patients' preoperative clinical notes were retrospectively collected. Overall long-term and stage-specific survival was compared in patients with and without the presence of preoperative GERD symptoms, PPI use, or BE. RESULTS: The majority of patients (64%; 221/345) had preoperative GERD symptoms and a history of PPI use (52%; 179/345). A preoperative diagnosis of BE was present in 34% (118/345) of patients. Kaplan-Meier survival analysis revealed a marked survival advantage in patients undergoing esophagectomy who had preoperative GERD symptoms, PPI use or BE diagnosis (P = .001). The survival advantage remained when stratified for American Joint Committee on Cancer stage in patients with preoperative PPI use (P = .015) but was less pronounced in patients with GERD symptoms or BE (P = .136 and P = .225, respectively). CONCLUSION: These data show that the oft-quoted statistic that the majority of patients with EAC do not report preexisting GERD or PPI use is false. Furthermore, a diagnosis of BE is present in a surprisingly high proportion of patients (34%). There is a distinct survival advantage in patients with preoperative GERD symptoms, PPI use, and BE diagnosis, which may not be simply owing to earlier stage at diagnosis. Screening may affect survival outcomes in more patients with EAC than previously anticipated. Descriptors Links Book Title Database Publisher Mosby, Inc Data Source Authors Lada,M.J., Nieman,D.R., Han,M., Timratana,P., Alsalahi,O., Peyre,C.G., Jones,C.E., Watson,T.J., Peters,J.H. Original/Translated Title URL Date of Electronic PMCID Editors
Secondhand tobacco smoke exposure in open and semi-open settings: a systematic review	2013	Tobacco Control Unit, Cancer Control and Prevention Programme, Institut Catala d'Oncologia-ICO, L'Hospitalet de Llobregat, Barcelona, Spain.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Environmental health perspectives Periodical, Abbrev. Environ.Health Perspect. Pub Date Free Form Jul Volume 121 Issue 7 Start Page 766 Other Pages 773 Notes LR: 20151119; JID: 0330411; 0 (Air Pollutants); 0 (Biomarkers); 0 (Particulate Matter); 0 (Tobacco Smoke Pollution); CIN: Environ Health Perspect. 2013 Jul;121(7):A229. PMID: 23816971; OID: NLM: PMC3701994; 2012/07/23 [received]; 2013/05/01 [accepted]; 20 Place of Publication United States ISSN/ISBN 1552-9924; 0091-6765 Accession Number PMID: 23651671 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; Review; IM DOI 10.1289/ehp.1205806 [doi] Output Language Unknown(0) PMID 23651671 Abstract BACKGROUND: Some countries have recently extended smoke-free policies to particular outdoor settings; however, there is controversy regarding whether this is scientifically and ethically justifiable. OBJECTIVES: The objective of the present study was to review research on secondhand smoke (SHS) exposure in outdoor settings. DATA SOURCES: We conducted different searches in PubMed for the period prior to September 2012. We checked the references of the identified papers, and conducted a similar search in Google Scholar. STUDY SELECTION: Our search terms included combinations of "secondhand smoke," "environmental tobacco smoke," "passive smoking" OR "tobacco smoke pollution" AND "outdoors" AND "PM" (particulate matter), "PM(2.5)" (PM with diameter = 2.5 microm), "respirable suspended particles," "particulate matter," "nicotine," "CO" (carbon monoxide), "cotinine," "marker," "biomarker" OR "airborne marker." In total, 18 articles and reports met the inclusion criteria. RESULTS: Almost all studies used PM(2.5) concentration as an SHS marker. Mean PM(2.5) concentrations reported for outdoor smoking areas when smokers were present ranged from 8.32 to 124 microg/m(3) at hospitality venues, and 4.60 to 17.80 microg/m(3) at other locations. Mean PM(2.5) concentrations in smoke-free indoor settings near outdoor smoking areas ranged from 4 to 120.51 microg/m(3). SHS levels increased when smokers were present, and outdoor and indoor SHS levels were related. Most studies reported a positive association between SHS measures and smoker density, enclosure of outdoor locations, wind conditions, and proximity to smokers. CONCLUSIONS: The available evidence indicates high SHS levels at some outdoor smoking areas and at adjacent smoke-free indoor areas. Further research and standardization of methodology is needed to determine whether smoke-free legislation should be extended to outdoor settings. Descriptors Links Book Title Database Publisher Data Source Authors Sureda,X., Fernandez,E., Lopez,M.J., Nebot,M. Original/Translated Title URL Date of Electronic 20130507 PMCID PMC3701994 Editors
Effect of Er,Cr:YSGG laser, air abrasion, and silane application on repaired shear bond strength of composites	2013	Restorative Dentistry, Indiana University School of Dentistry, Indianapolis, IN 46202, USA. sdhanvar@iupui.edu	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Operative dentistry Periodical, Abbrev. Oper.Dent. Pub Date Free Form May-Jun Volume 38 Issue 3 Start Page E1 Other Pages 9 Notes JID: 7605679; 0 (Acrylic Resins); 0 (Composite Resins); 0 (OptiBond Solo Plus); 0 (Phosphoric Acids); 0 (Resin Cements); 0 (Silanes); 0 (point 4 composite resin); E4GA8884NN (phosphoric acid); LMI26O6933 (Aluminum Oxide); 2012/11/06 [aheadofprint]; ppubli Place of Publication United States ISSN/ISBN 1559-2863; 0361-7734 Accession Number PMID: 23131133 Language eng SubFile Comparative Study; Journal Article; Randomized Controlled Trial; D DOI 10.2341/11-054-L [doi] Output Language Unknown(0) PMID 23131133 Abstract Aged resin composites have a limited number of carbon-carbon double bonds to adhere to a new layer of resin. Study objectives were to 1) evaluate various surface treatments on repaired shear bond strength between aged and new resin composites and 2) to assess the influence of a silane coupling agent after surface treatments. METHODS: Eighty disk-shape resin composite specimens were fabricated and thermocycled 5000 times prior to surface treatment. Specimens were randomly assigned to one of the three surface treatment groups (n=20): 1) air abrasion with 50-mum aluminum oxide, 2) tribochemical silica coating (CoJet), or 3) Er,Cr:YSGG (erbium, chromium: yttrium-scandium-gallium-garnet) laser or to a no-treatment control group (n=20). Specimens were etched with 35% phosphoric acid, rinsed, and dried. Each group was divided into two subgroups (n=10): A) no silanization and B) with silanization. The adhesive agent was applied and new resin composite was bonded to each conditioned surface. Shear bond strength was evaluated and data analyzed using two-way analysis of variance (ANOVA). RESULTS: Air abrasion with 50-mum aluminum oxide showed significantly higher repair bond strength than the Er,Cr:YSGG laser and control groups. Air abrasion with 50-mum aluminum oxide was not significantly different from tribochemical silica coating. Tribochemical silica coating had significantly higher repair bond strength than Er,Cr:YSGG laser and the control. Er,Cr:YSGG laser and the control did not have significantly different repair bond strengths. Silanization had no influence on repair bond strength for any of the surface treatment methods. CONCLUSION: Air abrasion with 50-mum aluminum oxide and tribochemical silica followed by the application of bonding agent provided the highest repair shear bond strength values, suggesting that they might be adequate methods to improve the quality of repairs of resin composites. Descriptors Links Book Title Database Publisher Data Source Authors Cho,S.D., Rajitrangson,P., Matis,B.A., Platt,J.A. Original/Translated Title URL Date of Electronic 20121106 PMCID Editors
Flavored tobacco product use among U.S. young adults	2013	Schroeder Institute for Tobacco Research and Policy Studies, Legacy, Washington, DC 20036, USA. avillanti@legacyforhealth.org	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full American Journal of Preventive Medicine Periodical, Abbrev. Am.J.Prev.Med. Pub Date Free Form Apr Volume 44 Issue 4 Start Page 388 Other Pages 391 Notes CI: Copyright (c) 2013; JID: 8704773; 0 (Flavoring Agents); 1490-04-6 (Menthol); 2012/07/06 [received]; 2012/10/02 [revised]; 2012/11/21 [accepted]; ppublish Place of Publication Netherlands ISSN/ISBN 1873-2607; 0749-3797 Accession Number PMID: 23498105 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; IM DOI 10.1016/j.amepre.2012.11.031 [doi] Output Language Unknown(0) PMID 23498105 Abstract BACKGROUND: Passage of the U.S. Family Smoking Prevention and Tobacco Control Act in 2009 led to a ban on the sale of flavored cigarettes, largely because of studies showing targeting of these products to youth and young adults. There are no current restrictions on the marketing or sale of noncigarette or new nontraditional smokeless tobacco products (such as snus and dissolvable products), which are available in more than 45 flavors. PURPOSE: To determine the prevalence of flavored tobacco use, dual use of flavored and menthol tobacco products, and sociodemographic predictors of flavored tobacco product use in young adults aged 18-34 years (N=4196). METHODS: The current study utilizes data from Legacy's Young Adult Cohort Study, a nationally representative sample collected in January 2012. Data were analyzed using Stata IC 11.0 in June 2012. RESULTS: Overall, 18.5% of tobacco users report using flavored products, and dual use of menthol and flavored product use ranged from 1% (nicotine products) to 72% (chewing tobacco). In a multivariable model controlling for menthol use, younger adults were more likely to use flavored tobacco products (OR=1.89, 95% CI=1.14, 3.11), and those with a high school education had decreased use of flavored products (OR=0.56; 95% CI=0.32, 0.97). CONCLUSIONS: Differences in use may be due to the continued targeted advertising of flavored products to young adults and minorities. Those most likely to use flavored products are also those most at risk of developing established tobacco-use patterns that persist through their lifetime. Descriptors Links Book Title Database Publisher American Journal of Preventive Medicine. Published by Elsevier Inc Data Source Authors Villanti,A.C., Richardson,A., Vallone,D.M., Rath,J.M. Original/Translated Title URL Date of Electronic PMCID Editors
A solid-phase microextraction fiber with carbon nanoparticles as sorbent material prepared by a simple flame-based preparation process	2013	Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, (University of Jinan), School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China. sunmin-123456@163.com	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 26-Jul Volume 1300 Issue Start Page 173 Other Pages 179 Notes CI: Copyright (c) 2013; JID: 9318488; 0 (Environmental Pollutants); 0 (Phthalic Acids); 0 (Polycyclic Hydrocarbons, Aromatic); 12597-68-1 (Stainless Steel); 660YQ98I10 (Potassium Chloride); 7440-44-0 (Carbon); OTO: NOTNLM; 2013/02/22 [received]; 2013/04/1 Place of Publication Netherlands ISSN/ISBN 1873-3778; 0021-9673 Accession Number PMID: 23684146 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; IM DOI 10.1016/j.chroma.2013.04.061 [doi] Output Language Unknown(0) PMID 23684146 Abstract A novel carbon nanoparticles-coated solid-phase microextraction (SPME) fiber was prepared via a simple and low-cost flame-based preparation process, with stainless steel wire as support. Surface characteristic of the fiber was studied with scanning electron microscope. A nano-scaled brushy structure was observed. Coupled to gas chromatography (GC), the fiber was used to extract phthalate esters (PAEs) and polycyclic aromatic hydrocarbons (PAHs) in aqueous samples. Analytical performances of the proposed method were investigated under the optimum extraction conditions (extraction temperature, 40 degrees C; content of KCl, 30% (w/v); extraction time, 50min for PAEs and 40min for PAHs) and compared with other reports for the same analytes. Calibration ranges were 0.06-500mugL(-1) for di-n-butyl phthalate (DBP), and 0.1-300mugL(-1) for di-cyclohexyl phthalate (DCHP) and di-(2-ethyl-hexyl) phthalate (DEHP). For the eight PAHs, good linearity was obtained ranging from 0.01 to 150mugL(-1). Limits of detection were 0.005mugL(-1) for three PAEs and 0.001-0.003mugL(-1) for eight PAHs. The fiber exhibited excellent stability. It can be used for 100 times with RSDs of extraction efficiency less than 22.4%. The as-established SPME-GC method was applied to determine PAEs in food-wrap and PAHs in cigarette ash and snow water, and satisfactory results were obtained. The carbon nanoparticles-coated SPME fiber was efficient for sampling of organic compounds from aqueous samples. Descriptors Links Book Title Database Publisher Elsevier B.V Data Source Authors Sun,M., Feng,J., Qiu,H., Fan,L., Li,L., Luo,C. Original/Translated Title URL Date of Electronic 20130428 PMCID Editors
The variable roads to sacrifice: Isotopic investigations of human remains from Chotuna-Huaca de los Sacrificios, Lambayeque, Peru	2013	Department of Anthropology, Georgia State University, Atlanta, GA, 30302-3998, USA. bturnerlivermore@gsu.edu	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full American Journal of Physical Anthropology Periodical, Abbrev. Am.J.Phys.Anthropol. Pub Date Free Form May Volume 151 Issue 1 Start Page 22 Other Pages 37 Notes CI: Copyright (c) 2013; JID: 0400654; 0 (Carbon Isotopes); 0 (Nitrogen Isotopes); 68238-35-7 (Keratins); 9007-34-5 (Collagen); 2012/10/11 [received]; 2013/01/14 [accepted]; 2013/02/26 [aheadofprint]; ppublish Place of Publication United States ISSN/ISBN 1096-8644; 0002-9483 Accession Number PMID: 23440681 Language eng SubFile Historical Article; Journal Article; Research Support, Non-U.S. Gov't; IM DOI 10.1002/ajpa.22238 [doi] Output Language Unknown(0) PMID 23440681 Abstract This study investigates two key variables-residential context and subsistence-among sacrificial victims dating to the Late Horizon (A.D. 1450-1532) in the Huaca de los Sacrificios at the Chotuna-Chornancap Archaeological Complex in north coastal Peru. We investigate whether aspects of sacrifice in this distant coastal province mirrored that found in Inca heartland contexts such as the capacocha, or remained more typical of coastal sacrificial traditions. Stable carbon, nitrogen, and oxygen isotope values were characterized in bone carbonate, bone collagen, and hair keratin to estimate geographic residence during the decade before death and diet in the decade, versus months, before death. Bone delta18 Ocarbonate values have a mean (+/-SD) of 26.8 +/- 1.1%, bone delta13 Ccarbonate values -6.7 +/- 1.7%, and bone delta(13) Ccollagen values 11.8 +/- 1.3%; bone delta15 Ncollagen values have a mean of 11.5 +/- 1.3%. Combined hair delta13 Ckeratin values have a mean of -12.8 +/- 1.6%, and hair delta15 Nkeratin values 10.8 +/- 1.3%. In contrast to contemporaneous coastal and highland contexts, we are unable to identify immigrants among the sacrificed individuals or changes in diet that indicate provisioning with a standardized diet leading up to death. Instead, results suggest that victims were local to the area, but consumed moderately variable diets consistent with local subsistence patterns. These findings suggest a distinct pattern of human sacrifice in the Late Horizon and underscore the regional and temporal variation in sacrificial practices in the central Andes. Descriptors Links Book Title Database Publisher Wiley Periodicals, Inc Data Source Authors Turner,B.L., Klaus,H.D., Livengood,S.V., Brown,L.E., Saldana,F., Wester,C. Original/Translated Title URL Date of Electronic 20130226 PMCID Editors
Carbon nanotubes reinforced hollow fiber solid phase microextraction for the determination of strychnine and brucine in urine	2013	Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China; University of Chinese Academy of Sciences,	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Talanta Periodical, Abbrev. Talanta Pub Date Free Form 15-Nov Volume 116 Issue Start Page 188 Other Pages 194 Notes CI: (c) 2013; JID: 2984816R; 0 (Membranes, Artificial); 0 (Nanotubes, Carbon); 6NG17YCK6H (brucine); H9Y79VD43J (Strychnine); NV1779205D (1-Octanol); OTO: NOTNLM; 2013/03/01 [received]; 2013/05/09 [revised]; 2013/05/11 [accepted]; 2013/05/16 [aheadofprint Place of Publication Netherlands ISSN/ISBN 1873-3573; 0039-9140 Accession Number PMID: 24148391 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; IM DOI 10.1016/j.talanta.2013.05.025 [doi] Output Language Unknown(0) PMID 24148391 Abstract A mixed matrix membrane (MMM), based on carbon nanotubes (CNTs) and hollow fiber (HF), was prepared and combined with solid phase microextraction (SPME) mode to determine strychnine and brucine in urine. This MMM was prepared by dispersing CNTs in water via surfactant assistance, and then immobilizing CNTs into the pores of HF by capillary forces and sonification. The prepared carbon nanotubes reinforced hollow fiber (CNTs-HF) was subsequently wetted by a few microliters of organic solvent (1-octanol), and then applied to extract the target analytes in direct immersion sampling mode. After extraction, analytes were desorbed via ultrasonic-assisted effect, and then detected via high-performance liquid chromatography (HPLC). To achieve the highest extraction efficiency, main extraction parameters such as the type and amount of surfactant, the diameter and doping level of CNTs, extraction time, desorption condition, pH value, stirring rate and volume of the donor phase were optimized. Under the optimum extraction conditions, the method showed good linearity ranges with correlation coefficients higher than 0.9990, good repeatability and batch-to-batch reproducibility with relative standard deviations (RSDs) less than 6% and 5% for strychnine and brucine, respectively, and low limits of detection (0.7 and 0.9 microg L(-1) for strychnine and brucine, respectively). The recoveries were in the range of 83.81-116.14% at three spiked levels. The developed method was successfully applied to real urine sample with mean relative recoveries of 94.28% and 91.30% for strychnine and brucine, respectively. The developed method shows comparable results against reference methods and is a simple, green, and cost-effective microextraction technique. Descriptors Links Book Title Database Publisher Elsevier B.V Data Source Authors Song,X.Y., Shi,Y.P., Chen,J. Original/Translated Title URL Date of Electronic 20130516 PMCID Editors

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