Image
WTS Database
The subject of interest is:
waterpipe, water-pipe, nargile, narghile, arguileh, arguile, shisha, sheesha, chichi, hubble bubble, hubbly bubbly, goza, hookah, bong
| Title | Pub Year Sort ascending | Author | SearchLink |
|---|---|---|---|
| Smokeless and flavored tobacco products in the U.S.: 2009 Styles survey results | 2012 | Office on Smoking and Health, National Center for Chronic Disease Prevention and Health Promotion, CDC, Atlanta, Georgia 30341, USA. | Read more... |
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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
Jan
Volume
42
Issue
1
Start Page
29
Other Pages
36
Notes
CI: Published by Elsevier Inc.; JID: 8704773; 0 (Flavoring Agents); 2011/04/04 [received]; 2011/07/01 [revised]; 2011/08/31 [accepted]; ppublish
Place of Publication
Netherlands
ISSN/ISBN
1873-2607; 0749-3797
Accession Number
PMID: 22176843
Language
eng
SubFile
Journal Article; IM
DOI
10.1016/j.amepre.2011.08.019 [doi]
Output Language
Unknown(0)
PMID
22176843
Abstract
BACKGROUND: A number of noncigarette tobacco products, including some novel products, recently have been marketed by the tobacco industry, which raises concerns from tobacco control authorities. PURPOSE: This study aimed to assess current popularity of several noncigarette tobacco products in the U.S. METHODS: In 2009, a total of 10,587 adults completed a consumer mail-in survey (ConsumerStyles). Based on survey results, the weighted percentages of adults who heard and tried snus, dissolvable tobacco products, flavored little cigars, and flavored cigarettes were computed in 2010. A subset of this sample (n=4556) completed the HealthStyles survey, which included items about health perceptions of these products and use in the past 30 days. RESULTS: The percentage of U.S. adults in the sample who were aware of these products ranged from 10.4% (dissolvable tobacco) to 44.6% (flavored little cigars). One third of adults who had heard of flavored little cigars tried them and 10.1% had used them in the past 30 days; among those who had heard of them, 27.4% tried flavored cigarettes and 12.6% tried snus. In general, young adults, men, and smokers were most likely to have heard of each product. At least one third of adults were uncertain if these products were as harmful as cigarettes (range=37.3% [snus] to 50.3% [dissolvable tobacco]). CONCLUSIONS: The awareness of these tobacco products in this sample varied. Groups with a higher prevalence of smoking and tobacco use (e.g., men, people with low levels of education) may be a target audience for marketing and promotions. As availability of products change, continued surveillance is warranted in the U.S.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Regan,A.K., Dube,S.R., Arrazola,R.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
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| Comparison of Shear Bond Strength of Orthodontic Brackets Bonded to Enamel Prepared By Er:YAG Laser and Conventional Acid-Etching | 2012 | Assisstant Professor, Department of Orthodontic, School of Dentistry, Tehran University of Medical Science, Tehran, Iran. | Read more... |
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Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Journal of dentistry (Tehran, Iran)
Periodical, Abbrev.
J.Dent.(Tehran)
Pub Date Free Form
Winter
Volume
9
Issue
1
Start Page
20
Other Pages
26
Notes
LR: 20130530; JID: 101233680; OID: NLM: PMC3422059; OTO: NOTNLM; 2011/12/03 [received]; 2012/01/21 [accepted]; 2012/03/31 [epublish]; ppublish
Place of Publication
Iran
ISSN/ISBN
2008-2185; 1735-2150
Accession Number
PMID: 22924098
Language
eng
SubFile
Journal Article
DOI
Output Language
Unknown(0)
PMID
22924098
Abstract
INTRODUCTION: The purpose of this study was to compare shear bond strength (SBS) of orthodontic brackets bonded to enamel prepared by Er:YAG laser with two different powers and conventional acid-etching. MATERIALS AND METHODS: Forty-five human premolars extracted for orthodontic purposes were randomly assigned to three groups based on conditioning method: Group 1- conventional etching with 37% phosphoric acid; Group 2- irradiation with Er:YAG laser at 1 W; and Group 3- irradiation with Er:YAG laser at 1.5 W. Metal brackets were bonded on prepared enamel using a light-cured composite. All groups were subjected to thermocycling process. Then, the specimens mounted in auto-cure acryle and shear bond strength were measured using a universal testing machine with a crosshead speed of 0.5 mm per second. After debonding, the amount of resin remaining on the teeth was determined using the adhesive remnant index (ARI) scored 1 to 5. One-way analysis of variance was used to compare shear bond strengths and the Kruskal-Wallis test was performed to evaluate differences in the ARI for different etching types. RESULTS: The mean and standard deviation of conventional acid-etch group, 1W laser group and 1.5W laser group was 3.82 +/- 1.16, 6.97 +/- 3.64 and 6.93 +/- 4.87, respectively. CONCLUSION: The mean SBS obtained with an Er:YAG laser operated at 1W or 1.5W is approximately similar to that of conventional etching. However, the high variability of values in bond strength of irradiated enamel should be considered to find the appropriate parameters for applying Er:YAG laser as a favorable alternative for surface conditioning.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Hosseini,M.H., Namvar,F., Chalipa,J., Saber,K., Chiniforush,N., Sarmadi,S., Mirhashemi,A.H.
Original/Translated Title
URL
Date of Electronic
20120331
PMCID
PMC3422059
Editors
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| Waterpipe tobacco products: nicotine labelling versus nicotine delivery | 2012 | Department of Pharmacology and Toxicology, Institute for Drug and Alcohol Studies, Virginia Commonwealth University, Box 980205, Richmond, VA 23298, USA. arvansickel@vcu.edu | Read more... |
|
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Tobacco control
Periodical, Abbrev.
Tob.Control
Pub Date Free Form
May
Volume
21
Issue
3
Start Page
377
Other Pages
379
Notes
LR: 20151119; GR: R01 CA103827/CA/NCI NIH HHS/United States; GR: R01 CA120142/CA/NCI NIH HHS/United States; GR: R01CA103827/CA/NCI NIH HHS/United States; GR: R01CA120142/CA/NCI NIH HHS/United States; GR: T32DA007027-34/DA/NIDA NIH HHS/United States; JID:
Place of Publication
England
ISSN/ISBN
1468-3318; 0964-4563
Accession Number
PMID: 21636612
Language
eng
SubFile
Journal Article; Research Support, N.I.H., Extramural; IM
DOI
10.1136/tc.2010.042416 [doi]
Output Language
Unknown(0)
PMID
21636612
Abstract
BACKGROUND: Waterpipe tobacco package labelling typically indicates "0.0% tar" and "0.05% or 0.5% nicotine". OBJECTIVE: To determine the extent to which nicotine labeling is related to nicotine delivery. METHODS: 110 waterpipe smokers engaged in a 45-minute waterpipe smoking session. Puff topography and plasma nicotine were measured. Three waterpipe tobacco brands were used: Nakhla (0.5% nicotine), Starbuzz (0.05% nicotine), and Al Fakher (0.05% nicotine). Data were analyzed by one-way ANOVA. RESULTS: Topography did not differ across brands. Peak plasma nicotine varied significantly across brands. Al Fakher had the highest nicotine delivery (11.4 ng/ml) followed by Nakhla (9.8 ng/ml) and Starbuzz (5.8 ng/ml). CONCLUSIONS: Nicotine labelling on waterpipe tobacco products does not reflect delivery; smoking a brand with a "0.05% nicotine" label led to greater plasma nicotine levels than smoking a brand with a "0.5% nicotine" label. Waterpipe tobacco products should be labelled in a manner that does not mislead consumers.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Vansickel,A.R., Shihadeh,A., Eissenberg,T.
Original/Translated Title
URL
Date of Electronic
20110602
PMCID
PMC3739484
Editors
|
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| Evaluation of the pulmonary effects of short-term nose-only cigarette smoke exposure in mice | 2012 | Department of Physiology, United Arab Emirates University, PO Box 17666, Al Ain, UAE. anemmar@uaeu.ac.ae | Read more... |
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Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Experimental biology and medicine (Maywood, N.J.)
Periodical, Abbrev.
Exp.Biol.Med.(Maywood)
Pub Date Free Form
Dec
Volume
237
Issue
12
Start Page
1449
Other Pages
1456
Notes
LR: 20131121; JID: 100973463; EC 1.15.1.1 (Superoxide Dismutase); EC 2.5.1.18 (Glutathione Transferase); GAN16C9B8O (Glutathione); ppublish
Place of Publication
England
ISSN/ISBN
1535-3699; 1535-3699
Accession Number
PMID: 23354403
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1258/ebm.2012.012103 [doi]
Output Language
Unknown(0)
PMID
23354403
Abstract
Much is known about the chronic effects of cigarette smoke (CS) on lung function and inflammation and development of chronic obstructive pulmonary disease. However, the underlying pathophysiological mechanisms related to the short-term exposure to CS are not fully understood. Here, we assessed the effect of CS generated by nine consecutive cigarettes per day for four days in a nose-only exposure system on airway resistance measured using forced oscillation technique, lung inflammation and oxidative stress in BALB/c mice. Control mice were exposed to air. Mice exposed to CS showed a significant increase of neutrophils and lymphocytes numbers in bronchoalveolar lavage (BAL). The total protein and endothelin levels in BAL fluid were significantly augmented suggesting an increase of alveolar-capillary barrier permeability. Similarly, airway resistance was significantly increased in the CS group compared with controls. Furthermore, reactive oxygen species and lipid peroxidation levels in lung tissue were significantly increased. The antioxidant activities of reduced glutathione, glutathione S transferase and superoxide dismutase were all significantly increased following CS exposure, indicating that CS could trigger adaptive responses that counterbalance the potentially damaging activity of oxygen radicals induced by CS exposure. In conclusion, our data indicate that short-term nose-only exposure to CS causes lung inflammation and increase of airway resistance mediated at least partly through the oxidative stress.
Descriptors
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Book Title
Database
Publisher
Data Source
Authors
Nemmar,A., Raza,H., Subramaniyan,D., John,A., Elwasila,M., Ali,B.H., Adeghate,E.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
|
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| Occupational exposure to environmental tobacco smoke: a study in Lisbon restaurants | 2012 | Departamento de Genetica, Instituto Nacional de Saude Dr. Ricardo Jorge, INSA, IP, Lisboa, Portugal. | Read more... |
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Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Journal of toxicology and environmental health.Part A
Periodical, Abbrev.
J.Toxicol.Environ.Health A
Pub Date Free Form
Volume
75
Issue
13-15
Start Page
857
Other Pages
866
Notes
LR: 20151119; JID: 100960995; 0 (Biomarkers); 0 (Particulate Matter); 0 (Tobacco Smoke Pollution); K5161X06LL (Cotinine); ppublish
Place of Publication
England
ISSN/ISBN
1528-7394; 0098-4108
Accession Number
PMID: 22788372
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1080/15287394.2012.690690 [doi]
Output Language
Unknown(0)
PMID
22788372
Abstract
Environmental tobacco smoke (ETS), also referred to as secondhand smoke (SHS), is a major threat to public health and is increasingly recognized as an occupational hazard to workers in the hospitality industry. Therefore, several countries have implemented smoke-free regulations at hospitality industry sites. In Portugal, since 2008, legislation partially banned smoking in restaurants and bars but until now no data have been made available on levels of indoor ETS pollution/exposure at these locations. The aim of this study was to examine the occupational exposure to ETS/SHS in several restaurants in Lisbon, measured by indoor fine particles (PM(2.5)) and urinary cotinine concentration in workers, after the partial smoking ban in Portugal. Results showed that the PM(2.5) median level in smoking designated areas was 253 mug/m(3), eightfold higher than levels recorded in canteens or outdoor. The nonsmoking rooms of mixed restaurants exhibited PM(2.5) median level of 88 mug/m(3), which is higher than all smoke-free locations studied, approximately threefold greater than those found in canteens. Importantly, urinary cotinine concentrations were significantly higher in nonsmoker employees working in those smoking designated areas, confirming exposure to ETS. The proportion of smokers in those rooms was found to be significantly positively correlated with nonsmoker urinary cotinine and indoor PM(2.5) levels, establishing that both markers were occupational-ETS derived. The use of reinforced ventilation systems seemed not to be sufficient to decrease the observed ETS pollution/exposure in those smoking locations. Taken together, these findings demonstrate that the partial restrictions on smoking in Portuguese venues failed to provide adequate protection to their employees, irrespective of protective measures used. Therefore, a smoke-free legislation protecting individuals from exposure to ETS/SHS in all public places and workplaces is urgently needed in Portugal.
Descriptors
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Book Title
Database
Publisher
Data Source
Authors
Pacheco,S.A., Aguiar,F., Ruivo,P., Proenca,M.C., Sekera,M., Penque,D., Simoes,T.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
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| Patterns of tobacco use and dual use in US young adults: the missing link between youth prevention and adult cessation | 2012 | Department of Research and Evaluation, Legacy, Washington, DC 20036, USA. jrath@legacyforhealth.org | Read more... |
|
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Journal of environmental and public health
Periodical, Abbrev.
J.Environ.Public.Health.
Pub Date Free Form
Volume
2012
Issue
Start Page
679134
Other Pages
Notes
LR: 20150225; JID: 101516361; OID: NLM: PMC3361253; 2011/11/04 [received]; 2012/01/20 [accepted]; 2012/05/14 [epublish]; ppublish
Place of Publication
United States
ISSN/ISBN
1687-9813; 1687-9805
Accession Number
PMID: 22666279
Language
eng
SubFile
Journal Article; IM
DOI
10.1155/2012/679134 [doi]
Output Language
Unknown(0)
PMID
22666279
Abstract
Few studies address the developmental transition from youth tobacco use uptake to regular adulthood use, especially for noncigarette tobacco products. The current study uses online panel data from the Legacy Young Adult Cohort Study to describe the prevalence of cigarette, other tobacco product, and dual use in a nationally representative sample of young adults aged 18-34 (N = 4,201). Of the 23% of young adults who were current tobacco users, 30% reported dual use. Ever use, first product used, and current use were highest for cigarettes, cigars, little cigars, and hookah. Thirty-two percent of ever tobacco users reported tobacco product initiation after the age of 18 and 39% of regular users reported progressing to regular use during young adulthood. This study highlights the need for improved monitoring of polytobacco use across the life course and developing tailored efforts for young adults to prevent progression and further reduce overall population prevalence.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Rath,J.M., Villanti,A.C., Abrams,D.B., Vallone,D.M.
Original/Translated Title
URL
Date of Electronic
20120514
PMCID
PMC3361253
Editors
|
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| Sensitization of Candida albicans biofilms to various antifungal drugs by cyclosporine A | 2012 | DST-FIST Sponsored School of Life Sciences, SRTM University, Nanded, India. | Read more... |
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Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Annals of clinical microbiology and antimicrobials
Periodical, Abbrev.
Ann.Clin.Microbiol.Antimicrob.
Pub Date Free Form
4-Oct
Volume
11
Issue
Start Page
27
Other Pages
0711-11-27
Notes
LR: 20150222; JID: 101152152; 0 (Antifungal Agents); 0 (Echinocandins); 0 (Pyrimidines); 0 (Triazoles); 1400-61-9 (Nystatin); 7XU7A7DROE (Amphotericin B); 83HN0GTJ6D (Cyclosporine); 8VZV102JFY (Fluconazole); F0XDI6ZL63 (caspofungin); JFU09I87TR (Voriconaz
Place of Publication
England
ISSN/ISBN
1476-0711; 1476-0711
Accession Number
PMID: 23035934
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1186/1476-0711-11-27 [doi]
Output Language
Unknown(0)
PMID
23035934
Abstract
BACKGROUND: Biofilms formed by Candida albicans are resistant towards most of the available antifungal drugs. Therefore, infections associated with Candida biofilms are considered as a threat to immunocompromised patients. Combinatorial drug therapy may be a good strategy to combat C. albicans biofilms. METHODS: Combinations of five antifungal drugs- fluconazole (FLC), voriconazole (VOR), caspofungin (CSP), amphotericin B (AmB) and nystatin (NYT) with cyclosporine A (CSA) were tested in vitro against planktonic and biofilm growth of C. albicans. Standard broth micro dilution method was used to study planktonic growth, while biofilms were studied in an in vitro biofilm model. A chequerboard format was used to determine fractional inhibitory concentration indices (FICI) of combination effects. Biofilm growth was analyzed using XTT-metabolic assay. RESULTS: MICs of various antifungal drugs for planktonic growth of C. albicans were lowered in combination with CSA by 2 to 16 fold. Activity against biofilm development with FIC indices of 0.26, 0.28, 0.31 and 0.25 indicated synergistic interactions between FLC-CSA, VOR-CSA, CSP-CSA and AmB-CSA, respectively. Increase in efficacy of the drugs FLC, VOR and CSP against mature biofilms after addition of 62.5 mug/ml of CSA was evident with FIC indices 0.06, 0.14 and 0.37, respectively. CONCLUSIONS: The combinations with CSA resulted in increased susceptibility of biofilms to antifungal drugs. Combination of antifungal drugs with CSA would be an effective prophylactic and therapeutic strategy against biofilm associated C. albicans infections.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Shinde,R.B., Chauhan,N.M., Raut,J.S., Karuppayil,S.M.
Original/Translated Title
URL
Date of Electronic
20121004
PMCID
PMC3508915
Editors
|
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| Electro membrane extraction followed by low-density solvent based ultrasound-assisted emulsification microextraction combined with derivatization for determining chlorophenols and analysis by gas chromatography-mass spectrometry | 2012 | Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore. | Read more... |
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Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Journal of chromatography.A
Periodical, Abbrev.
J.Chromatogr.A
Pub Date Free Form
22-Jun
Volume
1243
Issue
Start Page
14
Other Pages
22
Notes
LR: 20131121; CI: Copyright (c) 2012; JID: 9318488; 0 (Chlorophenols); 0 (Emulsions); 0 (Membranes, Artificial); 0 (Water Pollutants, Chemical); 059QF0KO0R (Water); NV1779205D (1-Octanol); 2012/03/01 [received]; 2012/04/23 [revised]; 2012/04/23 [accepted]
Place of Publication
Netherlands
ISSN/ISBN
1873-3778; 0021-9673
Accession Number
PMID: 22579488
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1016/j.chroma.2012.04.054 [doi]
Output Language
Unknown(0)
PMID
22579488
Abstract
A highly efficient and simple two-step method, electro membrane extraction (EME) followed by low-density solvent based ultrasound-assisted emulsification microextraction (EME-LDS-USAEME) combined with derivatization and analysis by gas chromatography-mass spectrometry (GC-MS), was developed for the determination of trace level chlorophenols in environmental water samples. In the first step, the analytes were extracted, under electrical potential, from the sample solution into the acceptor solution, which was held in a polypropylene membrane sheet with 1-octanol as the supported liquid membrane. The acceptor solution from the first step was then employed as the sample solution for the second step of LDS-USAEME. In this step, the target analytes were extracted into a solvent with lower density than water that was dispersed in the sample solution with the assistance of ultrasound. The extract was separated from the sample solution by centrifugation and collected as the upper layer. Finally, the extract with a derivatization reagent were injected into a GC-MS system for analysis. Six chlorophenols, 2-chlorophenol, 4-chlorophenol, 2,3-dichlorophenol, 2,4-dichlorophenol, 2,4,6-trichlorophenol and pentachlorophenol were selected here as model compounds for developing and evaluating the method. Several factors influencing the extraction and derivatization were investigated. With the EME-LDS-USAEME procedure, high enrichment factors of up to 2198 were achieved. Under the most favorable conditions, good limits of detection (down to 0.005 mug/L), linearity (from 0.05-10 to 0.2-10 mug/L, depending on the analytes), and repeatability of extraction (RSDs below 9.7%, n=5) were obtained. The proposed method was applied to determine chlorophenols in drainwater samples.
Descriptors
Links
Book Title
Database
Publisher
Elsevier B.V
Data Source
Authors
Guo,L., Lee,H.K.
Original/Translated Title
URL
Date of Electronic
20120501
PMCID
Editors
|
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| Presence of erythromycin and tetracycline resistance genes in lactic acid bacteria from fermented foods of Indian origin | 2012 | Department of Food Microbiology, CSIR-Central Food Technological Research Institute, Mysore, 570 020, India. | Read more... |
|
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Antonie van Leeuwenhoek
Periodical, Abbrev.
Antonie Van Leeuwenhoek
Pub Date Free Form
Nov
Volume
102
Issue
4
Start Page
541
Other Pages
551
Notes
LR: 20131121; GENBANK/HQ615663; GENBANK/HQ615664; GENBANK/HQ615665; GENBANK/HQ615666; GENBANK/HQ615667; GENBANK/HQ615668; GENBANK/HQ615669; GENBANK/HQ615670; GENBANK/HQ615671; GENBANK/HQ615672; GENBANK/HQ615673; GENBANK/HQ615674; GENBANK/HQ615675; GENBANK
Place of Publication
Netherlands
ISSN/ISBN
1572-9699; 0003-6072
Accession Number
PMID: 22644346
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1007/s10482-012-9749-4 [doi]
Output Language
Unknown(0)
PMID
22644346
Abstract
Lactic acid bacteria (LAB) resistant to erythromycin were isolated from different food samples on selective media. The isolates were identified as Enterococcus durans, Enterococcus faecium, Enterococcus lactis, Enterococcus casseliflavus, Lactobacillus salivarius, Lactobacillus reuteri, Lactobacillus plantarum, Lactobacillus fermentum, Pediococcus pentosaceus and Leuconostoc mesenteroides. Of the total 60 isolates, 88 % harbored the ermB gene. The efflux gene msrA was identified in E. faecium, E. durans, E. lactis, E. casseliflavus, P. pentosaceus and L. fermentum. Further analysis of the msrA gene by sequencing suggested its homology to msrC. Resistance to tetracycline due to the genes tetM, tetW, tetO, tetK and tetL, alone or in combination, were identified in Lactobacillus species. The tetracycline efflux genes tetK and tetL occurred in P. pentosaceus and Enterococcus species. Since it appeared that LAB had acquired these genes, fermented foods may be a source of antibiotic resistance.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Thumu,S.C., Halami,P.M.
Original/Translated Title
URL
Date of Electronic
20120529
PMCID
Editors
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| A novel extraction technique based on carbon nanotubes reinforced hollow fiber solid/liquid microextraction for the measurement of piroxicam and diclofenac combined with high performance liquid chromatography | 2012 | Key Laboratory of Chemistry of Northwestern Plant Resources, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China. | Read more... |
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Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Talanta
Periodical, Abbrev.
Talanta
Pub Date Free Form
15-Oct
Volume
100
Issue
Start Page
153
Other Pages
161
Notes
LR: 20131121; CI: Copyright (c) 2012; JID: 2984816R; 0 (Nanotubes, Carbon); 0 (Salts); 0 (Solvents); 059QF0KO0R (Water); 13T4O6VMAM (Piroxicam); 144O8QL0L1 (Diclofenac); 2012/05/31 [received]; 2012/08/16 [revised]; 2012/08/27 [accepted]; 2012/09/03 [ahead
Place of Publication
Netherlands
ISSN/ISBN
1873-3573; 0039-9140
Accession Number
PMID: 23141323
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1016/j.talanta.2012.08.042 [doi]
Output Language
Unknown(0)
PMID
23141323
Abstract
A novel design of carbon nanotubes reinforced hollow fiber solid/liquid phase microextraction (CNTs-HF-SLPME) was developed to determine piroxicam and diclofenac in different real water samples. Functionalized multi-walled carbon nanotubes (MWCNTs) were held in the pores of hollow fiber with sol-gel technology. The pores and lumen of carbon nanotubes reinforced hollow fiber were subsequently filled with a muL volume of organic solvent (1-octanol), and then the whole assembly was used for the extraction of the target analytes in direct immersion sampling mode. The target analytes were extracted from the sample by two extractants, one of which is organic solvent placed inside the pores and lumen of hollow fiber and the other one is CNTs held in the pores of hollow fiber. After extraction, the analytes were desorbed in acetonitrile and analyzed using high performance liquid chromatography. This novel extraction mode showed more excellent extraction performance in comparison with conventional hollow fiber liquid microextraction (without adding CNTs) and carbon nanotubes reinforced hollow fiber solid microextraction (CNTs held in the pores of hollow fiber, but no organic solvents placed inside the lumen of hollow fiber) under the respective optimum conditions. This method provided 47- and 184-fold enrichment factors for piroxicam and diclofenac, respectively, good inter-fiber repeatability and batch-to-batch reproducibility. Linearity was observed in the range of 20-960 mug L(-1) for piroxicam, and 10-2560 mug L(-1) for diclofenac, with correlation coefficients of 0.9985 and 0.9989, respectively. The limits of detection were 4.58 mug L(-1) for piroxicam and 0.40 mug L(-1) for diclofenac.
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
20120903
PMCID
Editors
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