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Evaluation of volatiles from two subtropical strawberry cultivars using GC-olfactometry, GC-MS odor activity values, and sensory analysis 2011 Citrus Research and Education Center, University of Florida, 700 Experiment Station Road, Lake Alfred, Florida 33850, United States.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Journal of Agricultural and Food Chemistry
Periodical, Abbrev.
J.Agric.Food Chem.
Pub Date Free Form
14-Dec
Volume
59
Issue
23
Start Page
12569
Other Pages
12577
Notes
JID: 0374755; 0 (Volatile Organic Compounds); 2011/11/09 [aheadofprint]; ppublish
Place of Publication
United States
ISSN/ISBN
1520-5118; 0021-8561
Accession Number
PMID: 22026593
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1021/jf2030924 [doi]
Output Language
Unknown(0)
PMID
22026593
Abstract
Most strawberry flavor studies have examined berries grown in temperate regions with long summer days. Few studies have examined berries harvested in winter months from subtropical regions with shorter photoperiods. Fruits harvested in February and March from two strawberry cultivars, 'Strawberry Festival' and 'Florida Radiance', were examined. Thirty odor active compounds were detected using time-intensity GC-O. Twenty-nine were identified. The major odor active volatiles in both cultivars were 2,5-dimethyl-4-methoxy-3(2H)-furanone (DMMF), 2,5-dimethyl-4-hydroxy-3(2H)-furanone (DMHF), methyl butanoate, gamma-decalactone, unknown (grassy, LRI 1362, wax), (E)-2-hexenal, linalool, (E,Z)-2,6-nonadienal, geraniol, butanoic acid, methyl 2-methylbutanoate, and ethyl hexanoate. Over 90 volatiles were identified and 54 quantified using GC-MS including 33 esters, 6 alcohols, 5 acids, 3 aldehydes, 3 lactones, 2 ketones, and 2 furanones. Odor activity values (OAVs) were determined for 46 volatiles, of which 22 had OAV > 1. The highest OAVs for 'Strawberry Festival' were ethyl butanoate (461), DMHF (424), methyl butanoate (358), and linalool (102). A 14-member trained panel evaluated quartered fruit using quantitative descriptive analysis to quantify seven sensory attributes. Sensory "strawberry flavor" scores were positively correlated with sensory "sweetness" (R(2) = 0.83) as well as GC-MS methyl 3-methylbutanoate (R(2) = 0.90) and ethyl butanoate (R(2) = 0.96). These cultivars lacked methyl anthranilate and possessed an aroma pattern different from summer-grown strawberries.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Du,X., Plotto,A., Baldwin,E., Rouseff,R.
Original/Translated Title
URL
Date of Electronic
20111109
PMCID
Editors
Barrett's esophagus in children and adolescents without neurodevelopmental or tracheoesophageal abnormalities: a prospective study 2011 Baylor College of Medicine, Texas Children's Hospital, Houston, Texas 77030, USA.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Gastrointestinal endoscopy
Periodical, Abbrev.
Gastrointest.Endosc.
Pub Date Free Form
May
Volume
73
Issue
5
Start Page
875
Other Pages
880
Notes
LR: 20151119; CI: Copyright (c) 2011; GR: 1-R03-DK068148-01/DK/NIDDK NIH HHS/United States; GR: K24 DK078154/DK/NIDDK NIH HHS/United States; GR: K24 DK078154-04/DK/NIDDK NIH HHS/United States; GR: P30 DK056338/DK/NIDDK NIH HHS/United States; GR: P30 DK056
Place of Publication
United States
ISSN/ISBN
1097-6779; 0016-5107
Accession Number
PMID: 21354565
Language
eng
SubFile
Comparative Study; Journal Article; Multicenter Study; Research Support, N.I.H., Extramural; Research Support, U.S. Gov't, Non-P.H.S.; IM
DOI
10.1016/j.gie.2011.01.017 [doi]
Output Language
Unknown(0)
PMID
21354565
Abstract
BACKGROUND: Barrett's esophagus (BE) in children has been examined in retrospective studies, consisting of case series and cross-sectional studies. OBJECTIVE: To evaluate the prevalence and determinants of BE in children who are free from neurodevelopmental disorders and tracheoesophageal abnormalities. DESIGN: A prospective, cross-sectional study. SETTING: Three pediatric GI Centers in Houston, Texas; Phoenix, Arizona; and Portland, Maine between February 2006 and December 2007. PATIENTS: This study involved children and adolescents consecutively presenting for elective upper endoscopy. Patients with neurodevelopmental and tracheoesophageal disorders were excluded. INTERVENTION: Endoscopic pictures of all cases with suspected BE were independently reviewed and verified by two experienced investigators. Esophageal biopsy specimens were obtained in all patients, and targeted biopsy specimens also were obtained from suspected BE. MAIN OUTCOME MEASUREMENTS: Endoscopically suspected BE and histologically confirmed BE. RESULTS: A total of 840 patients (mean age 9.5 years) were enrolled and had complete questionnaire and endoscopic data. Twelve patients were suspected of having BE (prevalence of 1.43%; 95% confidence interval [CI], 0.73-2.45), and only 1 patient had intestinal metaplasia, for a prevalence of 0.12% (95% CI, 0-0.65), whereas the rest had gastric oxyntic glands (n=6) or squamous esophageal epithelium (n=5). Patients with suspected BE had a higher mean body mass index (23.0 vs 19.1, P=.05) and more chest pain (50% vs 13%, P<.01 than="" patients="" without="" be="" or="" reflux="" esophagitis.="" there="" was="" a="" trend="" toward="" higher="" frequency="" of="" dysphagia="" heartburn="" and="" regurgitation="" in="" with="" suspected="" be.="" limitations:="" the="" accuracy="" prevalence="" estimates="" is="" limited="" by="" small="" number="" cases.="" conclusion:="" rare="" children="" neurodevelopmental="" delay="" tracheoesophageal="" anomalies="" presenting="" for="" elective="" upper="" endoscopy.="">
Descriptors
Links
Book Title
Database
Publisher
American Society for Gastrointestinal Endoscopy. Published by Mosby, Inc
Data Source
Authors
Nguyen,D.M., El-Serag,H.B., Shub,M., Integlia,M., Henderson,L., Richardson,P., Fairly,K., Gilger,M.A.
Original/Translated Title
URL
Date of Electronic
20110226
PMCID
PMC3083476
Editors
The characterisation of lactic acid bacteria during the fermentation of an artisan Serbian sausage (Petrovska Klobasa) 2011 Faculty of Technology, Bulevar Oslobodjenja 124, 16000 Leskovac, Serbia.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Meat Science
Periodical, Abbrev.
Meat Sci.
Pub Date Free Form
Aug
Volume
88
Issue
4
Start Page
668
Other Pages
674
Notes
CI: Copyright (c) 2011; JID: 101160862; 0 (DNA, Bacterial); 0 (RNA, Ribosomal, 16S); 2010/09/28 [received]; 2011/02/05 [revised]; 2011/02/22 [accepted]; 2011/03/02 [aheadofprint]; ppublish
Place of Publication
England
ISSN/ISBN
1873-4138; 0309-1740
Accession Number
PMID: 21420794
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1016/j.meatsci.2011.02.026 [doi]
Output Language
Unknown(0)
PMID
21420794
Abstract
Petrovska Klobasa is an artisan Serbian sausage made only from meat and spices without any additives or starter cultures. In order to characterise lactic acid bacteria (LAB) microflora, a total number of 404 LAB strains were isolated from 15 samples collected during 90 days of the fermentation and 120 days of storage of one batch of Petrovska Klobasa. The isolates were preliminarily identified by phenotypic tests and subjected to (GTG)(5)-PCR fingerprinting. Representatives of each group were identified by 16S rDNA sequencing. The results showed that among the isolates, Lactobacillus sakei and Leuconostoc mesenteroides predominate with 36.4% and 37.1% of total LAB strains, respectively. Pediococcus pentosaceus was also isolated in high proportion (18.4%) whereas Enterococcus durans and Enterococcus caseliflavus made only 1% and 6% of the total isolates, correspondingly. The analysis of vacuum packed and modified atmosphere packed (MAP) samples showed higher presence of L. mesenteroides and L. sakei in the total microflora.
Descriptors
Links
Book Title
Database
Publisher
Elsevier Ltd
Data Source
Authors
Danilovic,B., Jokovic,N., Petrovic,L., Veljovic,K., Tolinacki,M., Savic,D.
Original/Translated Title
URL
Date of Electronic
20110302
PMCID
Editors
Knowledge of health effects and intentions to quit among smokeless tobacco users in India: findings from the International Tobacco Control Policy Evaluation (ITC) India Pilot Survey 2011 Healis - Sekhsaria Institute for Public Health, Navi Mumbai, India. rautel@healis.org
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Asian Pacific journal of cancer prevention : APJCP
Periodical, Abbrev.
Asian Pac.J.Cancer.Prev.
Pub Date Free Form
Volume
12
Issue
5
Start Page
1233
Other Pages
1238
Notes
GR: 79551/Canadian Institutes of Health Research/Canada; JID: 101130625; ppublish
Place of Publication
Thailand
ISSN/ISBN
1513-7368; 1513-7368
Accession Number
PMID: 21875273
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
Output Language
Unknown(0)
PMID
21875273
Abstract
INTRODUCTION AND BACKGROUND: The prevalence of smokeless tobacco use in India is the highest in the world, with 26% of adults reporting being users of smokeless tobacco only. But to date, there are few studies of beliefs, knowledge, and other psychosocial measures relating to smokeless tobacco use in India. The aim of the present study was to use data from the ITC India Pilot Study conducted in 2006 to examine beliefs about the harms of smokeless tobacco use, knowledge of health effects, and intentions to quit among current smokeless tobacco users in two states, Maharashtra and Bihar. METHODS: Data from the ITC India Pilot Study, a face-to-face crosssectional survey of 248 adults reporting exclusive current use of smokeless tobacco in Maharashtra and Bihar, were analyzed with respect to the knowledge of health effects, beliefs about harmfulness, and intentions to quit smokeless tobacco use. RESULTS: Around three quarters (36%) of smokeless tobacco users from Maharashtra and two thirds (62%) from Bihar had a 'bad' opinion about smokeless tobacco use. About 77% believed that smokeless tobacco use causes mouth cancer, followed by gum disease (66%) and difficulty in opening the mouth (56%). Significant differences were found in health knowledge between urban and rural smokeless tobacco users in both states. Only 38% of smokeless tobacco users reported having intentions to quit, and only 11% had intentions to quit within the next 6 months. Smokeless tobacco users who reported higher knowledge of the specific health effects from smokeless tobacco use were more likely to have intentions to quit. CONCLUSION: Despite the fairly high levels of awareness of health effects from smokeless tobacco use in Maharashtra and Bihar, the majority of smokeless users had no intentions to quit. Increased educational efforts about the detrimental health effects from smokeless tobacco use may result in higher levels of knowledge about the harms of smokeless tobacco and this in turn could increase quit intentions and subsequent quitting among users.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Raute,L.J., Sansone,G., Pednekar,M.S., Fong,G.T., Gupta,P.C., Quah,A.C., Bansal-Travers,M., Sinha,D.N.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Carbon monoxide poisoning associated with water pipe smoking 2011 Karadeniz Technical University, Faculty of Medicine, Department of Emergency Medicine, Trabzon, Turkey. drsuhaturkmen@hotmail.com
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Clinical toxicology (Philadelphia, Pa.)
Periodical, Abbrev.
Clin.Toxicol.(Phila)
Pub Date Free Form
Aug
Volume
49
Issue
7
Start Page
697
Other Pages
698
Notes
LR: 20151119; JID: 101241654; 0 (Biomarkers); 142M471B3J (Carbon Dioxide); 9061-29-4 (Carboxyhemoglobin); S88TT14065 (Oxygen); CIN: Clin Toxicol (Phila). 2011 Aug;49(7):702-3. PMID: 21875388; 2011/08/08 [aheadofprint]; ppublish
Place of Publication
England
ISSN/ISBN
1556-9519; 1556-3650
Accession Number
PMID: 21819288
Language
eng
SubFile
Case Reports; Journal Article; AIM; IM
DOI
10.3109/15563650.2011.598160 [doi]
Output Language
Unknown(0)
PMID
21819288
Abstract
The water pipe is a means of tobacco consumption widespread in Turkey and Arab countries. We present two patients brought to our emergency department due to a syncopal attack secondary to carbon monoxide toxicity following water pipe use. This rare form of poisoning should be borne in mind by emergency physicians as a differential diagnosis in water pipe smokers. Water pipes should be used where there is adequate ventilation.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Turkmen,S., Eryigit,U., Sahin,A., Yeniocak,S., Turedi,S.
Original/Translated Title
URL
Date of Electronic
20110808
PMCID
Editors
Fatal alveolar haemorrhage following a "bang" of cannabis 2011 Service de pneumologie, hopital d'instruction des armees, 29240 Brest Armees, France.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Revue des maladies respiratoires
Periodical, Abbrev.
Rev.Mal.Respir.
Pub Date Free Form
Sep
Volume
28
Issue
7
Start Page
919
Other Pages
923
Notes
CI: Copyright (c) 2011; JID: 8408032; 0 (Acids); 0 (Anti-Bacterial Agents); 0 (Plastics); CIN: Rev Mal Respir. 2011 Sep;28(7):854-5. PMID: 21943529; 2009/08/26 [received]; 2011/01/04 [accepted]; 2011/07/07 [aheadofprint]; ppublish
Place of Publication
France
ISSN/ISBN
1776-2588; 0761-8425
Accession Number
PMID: 21943539
Language
fre
SubFile
Case Reports; English Abstract; Journal Article; IM
DOI
10.1016/j.rmr.2011.05.005 [doi]
Output Language
Unknown(0)
PMID
21943539
Abstract
The new methods of cannabis consumption (home made water pipe or "bang") may be responsible for fatal respiratory complications. We present a case, with fatal outcome, of a man of 19 years with no previous history other than an addiction to cannabis using "bang". He was admitted to intensive care with acute dyspnoea. A CT scan showed bilateral, diffuse alveolar shadowing. He was anaemic with an Hb of 9.3g/l. Bronchoalveolar lavage revealed massive alveolar haemorrhage. Investigations for infection and immunological disorder were negative and toxicology was negative except for cannabis. Antibiotic treatment was given and favourable progress allowed early discharge. Death occurred 15 days later due to alveolar haemorrhage following a further "bang" of cannabis. Autopsy showed toxic alveolar haemorrhage. The probable mechanism is pulmonary damage due to acid anhydrides released by the incomplete combustion of cannabis in contact with plastic. These acids have a double effect on the lungs: a direct toxicity with severe inflammation of the mucosa leading to alveolar haemorrhage and subsequently the acid anhydrides may lead to the syndrome of intra-alveolar haemorrhage and anaemia described in occupational lung diseases by Herbert in Oxford in 1979. It manifests itself by haemoptysis and intravascular haemolysis. We draw attention to the extremely serious potential consequences of new methods of using cannabis, particularly the use of "bang" in homemade plastic materials.
Descriptors
Links
Book Title
Database
Publisher
SPLF. Published by Elsevier Masson SAS
Data Source
Authors
Grassin,F., Andre,M., Rallec,B., Combes,E., Vinsonneau,U., Paleiron,N.
Original/Translated Title
Hemorragie alveolaire fatale apres bang de cannabis
URL
Date of Electronic
20110707
PMCID
Editors
Development of a novel ultrasound-assisted surfactant-enhanced emulsification microextraction method and its application to the analysis of eleven polycyclic aromatic hydrocarbons at trace levels in water 2011 Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, China. chengjingok@mail.ccnu.edu.cn
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Journal of chromatography.A
Periodical, Abbrev.
J.Chromatogr.A
Pub Date Free Form
6-May
Volume
1218
Issue
18
Start Page
2476
Other Pages
2482
Notes
LR: 20121115; CI: Copyright (c) 2011; JID: 9318488; 0 (Cyclohexanes); 0 (Polycyclic Hydrocarbons, Aromatic); 0 (Polysorbates); 0 (Surface-Active Agents); 0 (Water Pollutants, Chemical); 48K5MKG32S (Cyclohexane); 2011/01/13 [received]; 2011/02/21 [revised]
Place of Publication
Netherlands
ISSN/ISBN
1873-3778; 0021-9673
Accession Number
PMID: 21420097
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1016/j.chroma.2011.02.049 [doi]
Output Language
Unknown(0)
PMID
21420097
Abstract
A novel ultrasound-assisted surfactant-enhanced emulsification microextraction (UASEME) technique has been proposed by using low-density extraction solvents. In the proposed technique, Tween 80 and cyclohexane were injected into 5-mL glass test tubes with conical bottoms, containing 5.00 mL of a water sample that was located inside the ultrasonic bath. When the extraction process was finished, the glass test tube was sealed with a rubber plug and then placed upside down in a centrifuge. The finely dispersed droplets of cyclohexane collected at the conical bottom of test tube because the density of cyclohexane is less than of water, and the PAHs were concentrated in the cyclohexane. Next, 5 muL of the cyclohexane that collected at the conical bottom was removed using a 10-muL microsyringe and injected into high performance liquid chromatography coupled with fluorescence detection (HPLC-FLD) for analysis. The proposed method avoided the use of chlorinated solvents, which have been widely used as extraction solvents in a normal UASEME assay. Parameters that affected the extraction efficiency, such as the type and volume of the extraction solvent, the type and concentration of the surfactant, and the ultrasound emulsification time and salt addition, were investigated and optimised for the method. Under the optimum conditions, the enrichment factors ranged between 90 and 247. The limits of detection of the method were 0.6-62.5 ng L(-1). Good recoveries and repeatability of the method for the eleven PAHs were also obtained. The proposed UASEME technique has been demonstrated to be simple, practical and environmentally friendly for the determination of PAH residues in real water samples.
Descriptors
Links
Book Title
Database
Publisher
Elsevier B.V
Data Source
Authors
Cheng,J., Matsadiq,G., Liu,L., Zhou,Y.W., Chen,G.
Original/Translated Title
URL
Date of Electronic
20110317
PMCID
Editors
Mainstream smoke of the waterpipe: does this environmental matrix reveal as significant source of toxic compounds? 2011 German Federal Institute for Risk Assessment (BfR), Department of Product Safety, Thielallee 88-92, 14195 Berlin, Germany. Jens.Schubert@bfr.bund.de
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Toxicology letters
Periodical, Abbrev.
Toxicol.Lett.
Pub Date Free Form
10-Sep
Volume
205
Issue
3
Start Page
279
Other Pages
284
Notes
LR: 20151119; CI: Copyright (c) 2011; JID: 7709027; 0 (4-(methylnitrosamino)-1-(3-pyridyl)-1-butan-1-ol); 0 (Carcinogens); 0 (Hygroscopic Agents); 0 (Nitrosamines); 0 (Polycyclic Hydrocarbons, Aromatic); 0 (Pyridines); 0 (Smoke); 059QF0KO0R (Water); 3417W
Place of Publication
Netherlands
ISSN/ISBN
1879-3169; 0378-4274
Accession Number
PMID: 21712083
Language
eng
SubFile
Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1016/j.toxlet.2011.06.017 [doi]
Output Language
Unknown(0)
PMID
21712083
Abstract
In recent years the number of waterpipe smokers has increased substantially worldwide. Here we report on the concentrations of tobacco-specific nitrosamines (TSNAs) and polycyclic aromatic hydrocarbons (PAHs) in waterpipe smoke and the analysis of selected biomarkers indicative for the body burden in waterpipe users. We further identify high amounts of unburned humectants (glycerol and propylene glycol) in the waterpipe smoke as main part of the so-called "tar" fraction. These results give cause for serious concern. For standardization we applied a machine smoking protocol. Smoke was collected on glass fiber filters and analyzed for nicotine, water, humectants, TSNAs, and PAHs. In addition, we determined carbon monoxide and found high amounts in the smoke being causative for high levels of carboxyhemoglobin (COHb) in the blood of smokers. In comparison to the reference cigarette 3R4F, the nicotine contents were 10-times higher, but TSNA levels were found lower in waterpipe smoke. This finding explained the low levels of 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol detected in the urine of waterpipe smokers. Finally, the levels of benzo[a]pyrene were three times higher in waterpipe smoke compared to the reference cigarette. Altogether, the data presented in this study point to the health hazards associated with the consumption of waterpipes.
Descriptors
Links
Book Title
Database
Publisher
Elsevier Ireland Ltd
Data Source
Authors
Schubert,J., Hahn,J., Dettbarn,G., Seidel,A., Luch,A., Schulz,T.G.
Original/Translated Title
URL
Date of Electronic
20110625
PMCID
Editors
Spatial variability and application of ratios between BTEX in two Canadian cities 2011 Department of Civil and Environmental Engineering, University of Windsor, Windsor, ON, Canada N9B 3P4.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
TheScientificWorldJournal
Periodical, Abbrev.
ScientificWorldJournal
Pub Date Free Form
Volume
11
Issue
Start Page
2536
Other Pages
2549
Notes
LR: 20150128; JID: 101131163; 0 (Air Pollutants); 0 (Benzene Derivatives); 0 (Vehicle Emissions); 0 (Volatile Organic Compounds); 0 (Xylenes); 3FPU23BG52 (Toluene); J64922108F (Benzene); L5I45M5G0O (ethylbenzene); OID: NLM: PMC3253549; OTO: NOTNLM; 2011/1
Place of Publication
England
ISSN/ISBN
1537-744X; 1537-744X
Accession Number
PMID: 22235184
Language
eng
SubFile
Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1100/2011/167973 [doi]
Output Language
Unknown(0)
PMID
22235184
Abstract
Spatial monitoring campaigns of volatile organic compounds were carried out in two similarly sized urban industrial cities, Windsor and Sarnia, ON, Canada. For Windsor, data were obtained for all four seasons at approximately 50 sites in each season (winter, spring, summer, and fall) over a three-year period (2004, 2005, and 2006) for a total of 12 sampling sessions. Sampling in Sarnia took place at 37 monitoring sites in fall 2005. In both cities, passive sampling was done using 3M 3500 organic vapor samplers. This paper characterizes benzene, toluene, ethylbenzene, o, and (m + p)-xylene (BTEX) concentrations and relationships among BTEX species in the two cities during the fall sampling periods. BTEX concentration levels and rank order among the species were similar between the two cities. In Sarnia, the relationships between the BTEX species varied depending on location. Correlation analysis between land use and concentration ratios showed a strong influence from local industries. Use one of the ratios between the BTEX species to diagnose photochemical age may be biased due to point source emissions, for example, 53 tonnes of benzene and 86 tonnes of toluene in Sarnia. However, considering multiple ratios leads to better conclusions regarding photochemical aging. Ratios obtained in the sampling campaigns showed significant deviation from those obtained at central monitoring stations, with less difference in the (m + p)/E ratio but better overall agreement in Windsor than in Sarnia.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Miller,L., Xu,X., Wheeler,A., Atari,D.O., Grgicak-Mannion,A., Luginaah,I.
Original/Translated Title
URL
Date of Electronic
20111229
PMCID
PMC3253549
Editors
Sensitive determination of polycyclic aromatic hydrocarbons in water samples using monolithic capillary solid-phase extraction and on-line thermal desorption prior to gas chromatography-mass spectrometry 2011 Department of Analytical Chemistry, Campus Rabanales, University of Cordoba, 14071 Cordoba, Spain.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Journal of chromatography.A
Periodical, Abbrev.
J.Chromatogr.A
Pub Date Free Form
8-Apr
Volume
1218
Issue
14
Start Page
1802
Other Pages
1807
Notes
CI: Copyright (c) 2011; JID: 9318488; 0 (Polycyclic Hydrocarbons, Aromatic); 0 (Sewage); 0 (Water Pollutants, Chemical); 2010/10/21 [received]; 2011/02/05 [revised]; 2011/02/07 [accepted]; 2011/02/13 [aheadofprint]; ppublish
Place of Publication
Netherlands
ISSN/ISBN
1873-3778; 0021-9673
Accession Number
PMID: 21377161
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1016/j.chroma.2011.02.008 [doi]
Output Language
Unknown(0)
PMID
21377161
Abstract
A methacrylate-based monolithic capillary column has been evaluated for the preconcentration of polycyclic aromatic hydrocarbons (PAHs) from environmental water samples. For this purpose, the monolyte was in situ synthesized in a 6cmx0.32mm id fused-silica capillary. The microextraction unit was fitted to a micro-HPLC pump to pass 10mL of sample. The isolated pollutants were eluted by means of 10muL of methanol, the organic phase being directly collected in a specific interface that can be fitted to the injection port of the gas chromatograph without modification. The interface allows the on-line thermal desorption of the PAHs, avoiding the dilution and providing enough sensitivity to reach the legal limits established for these pollutants in the matrices selected. The limits of detection achieved for 10mL of water ranged between 2.8ng/L (indeno(1,2,3-cd)pyrene) and 11.5ng/L (acenaphthene) with acceptable precision (between 4.5 and 18.2% RSD). The method was applied to the determination of the selected PAHs in tap, river waters and sewage, being fluoranthene and pyrene detected in all of them at concentrations lower than the legal limits established for these compounds in the matrices assayed.
Descriptors
Links
Book Title
Database
Publisher
Elsevier B.V
Data Source
Authors
Galan-Cano,F., Bernabe-Zafon,V., Lucena,R., Cardenas,S., Herrero-Martinez,J.M., Ramis-Ramos,G., Valcarcel,M.
Original/Translated Title
URL
Date of Electronic
20110213
PMCID
Editors