WTS database

Title	Pub Year	Author Sort ascending	SearchLink
Isolation and identification of cultivable lactic acid bacteria in traditional yak milk products of Gansu Province in China	2012	Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full The Journal of general and applied microbiology Periodical, Abbrev. J.Gen.Appl.Microbiol. Pub Date Free Form Volume 58 Issue 2 Start Page 95 Other Pages 105 Notes LR: 20131121; GENBANK/HM058717; GENBANK/HM058718; GENBANK/HM058719; GENBANK/HM058720; GENBANK/HM058721; GENBANK/HM058722; GENBANK/HM058723; GENBANK/HM058724; GENBANK/HM058725; GENBANK/HM058726; GENBANK/HM058727; GENBANK/HM058728; GENBANK/HM058729; GENBANK Place of Publication Japan ISSN/ISBN 1349-8037; 0022-1260 Accession Number PMID: 22688240 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; IM DOI DN/JST.JSTAGE/jgam/58.95 [pii] Output Language Unknown(0) PMID 22688240 Abstract Various traditional fermented yak milk and raw milk foods could be considered as an abundant resource for obtaining novel lactic acid bacteria (LAB) with unique properties. Eighty-eight samples of yak milk products were collected from Gansu Province in China. Three hundred and nineteen strains of LAB isolated from these samples were identified by phenotypic methods, 16S rRNA gene sequence analysis and PCR-Denaturing Gradient Gel Electrophoresis (PCR-DGGE) technology. Among the isolates, one hundred and sixty-four isolates (51.41% of the total) were classified under Lactobacilli, and one hundred and fifty-five (48.59%) belonged to cocci. All the isolates were classified to six genera (Lactobacillus, Lactococcus, Leuconostoc, Streptococcus, Enterococcus and Weissella) and twenty-one species. Lactobacillus helveticus (87 strains), Leuconostoc mesenteroides subsp. mesenteroides (49 strains), Streptococcus thermophilus (39 strains), Lactobacillus casei (31 strains) and Lactococcus lactis subsp. lactis (19 strains) were considered as the predominant populations in the yak milk products. The results showed that there were abundant genus and species LAB existing in yak milk products in Gansu Province in China. The obtained LAB pure cultures may be a valuable source for further starter selection. Descriptors Links Book Title Database Publisher Data Source Authors Bao,Q., Liu,W., Yu,J., Wang,W., Qing,M., Chen,X., Wang,F., Zhang,J., Zhang,W., Qiao,J., Sun,T., Zhang,H. Original/Translated Title URL Date of Electronic PMCID Editors
Investigating bacterial population structure and dynamics in traditional koumiss from Inner Mongolia using single molecule real-time sequencing	2016	Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Huhhot, 010018 China; Dairy Processing Laboratory of National Dairy Production Technology and Research Center, Huhhot, Inner Mongolia, Ch	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Journal of dairy science Periodical, Abbrev. J.Dairy Sci. Pub Date Free Form 10-Aug Volume Issue Start Page Other Pages Notes LR: 20160814; CI: Copyright (c) 2016; JID: 2985126R; OTO: NOTNLM; 2016/03/14 [received]; 2016/07/03 [accepted]; aheadofprint Place of Publication ISSN/ISBN 1525-3198; 0022-0302 Accession Number PMID: 27522429 Language ENG SubFile JOURNAL ARTICLE DOI S0022-0302(16)30539-2 [pii] Output Language Unknown(0) PMID 27522429 Abstract Koumiss is considered as a complete dairy product high in nutrients and with medicinal properties. The bacterial communities involved in production of koumiss play a crucial role in the fermentation cycle. To reveal bacterial biodiversity in koumiss and the dynamics of succession in bacterial populations during fermentation, 22 samples were collected from 5 sampling sites and the full length of the 16S ribosomal RNA genes sequenced using single molecule real-time sequencing technology. One hundred forty-eight species were identified from 82 bacterial genera and 8 phyla. These results suggested that the structural difference in the bacterial community could be attributed to geographical location. The most significant difference in bacterial composition occurred in samples from group D compared with other groups. The sampling location of group D was distant from the city and maintained the primitive local nomadic life. The dynamics of succession in bacterial communities showed that Lactobacillus helveticus increased in abundance from 0 to 9 h and reached its peak at 9 h and then decreased. In contrast, Enterococcus faecalis, Enterococcus durans, and Enterococcus casseliflavus increased gradually throughout the fermentation process, and reached a maximum after 24 h. Descriptors Links Book Title Database Publisher American Dairy Science Association. Published by Elsevier Inc Data Source Authors Gesudu,Q., Zheng,Y., Xi,X., Hou,Q.C., Xu,H., Huang,W., Zhang,H., Menghe,B., Liu,W. Original/Translated Title URL Date of Electronic 20160810 PMCID Editors
Molecular identification and quantification of lactic acid bacteria in traditional fermented dairy foods of Russia	2015	Key Laboratory of Dairy Biotechnology and Engineering, Education Ministry of P. R. China, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010018, P. R. China.; Key Laboratory of Dairy Biotechnology and Engineering, Education Ministry of P.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Journal of dairy science Periodical, Abbrev. J.Dairy Sci. Pub Date Free Form Aug Volume 98 Issue 8 Start Page 5143 Other Pages 5154 Notes CI: Copyright (c) 2015; GENBANK/KC836519; GENBANK/KC836520; GENBANK/KC836521; GENBANK/KC836522; GENBANK/KC836523; GENBANK/KC836524; GENBANK/KC836525; GENBANK/KC836526; GENBANK/KC836527; GENBANK/KC836528; GENBANK/KC836529; GENBANK/KC836530; GENBANK/KC83653 Place of Publication United States ISSN/ISBN 1525-3198; 0022-0302 Accession Number PMID: 26004836 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; IM DOI 10.3168/jds.2015-9460 [doi] Output Language Unknown(0) PMID 26004836 Abstract Russian traditional fermented dairy foods have been consumed for thousands of years. However, little research has focused on exploiting lactic acid bacteria (LAB) resources and analyzing the LAB composition of Russian traditional fermented dairy foods. In the present study, we cultured LAB isolated from fermented mare and cow milks, sour cream, and cheese collected from Kalmykiya, Buryats, and Tuva regions of Russia. Seven lactobacillus species and the Bifidobacterium genus were quantified by quantitative PCR. The LAB counts in these samples ranged from 3.18 to 9.77 log cfu/mL (or per gram). In total, 599 LAB strains were obtained from these samples using de Man, Rogosa, and Sharpe agar and M17 agar. The identified LAB belonged to 7 genera and 30 species by 16S rRNA and murE gene sequencing and multiplex PCR assay. The predominant LAB isolates were Lactobacillus helveticus (176 strains) and Lactobacillus plantarum (63 strains), which represented 39.9% of all isolates. The quantitative PCR results revealed that counts of 7 lactobacilli species and Bifidobacterium spp. of 30 fermented cow milk samples ranged from 1.19+/-0.34 (Lactobacillus helveticus in Tuva) to 8.09+/-0.71 (Lactobacillus acidophilus in Kalmykiya) log cfu/mL of fermented cow milk (mean +/- standard error). The numbers of Bifidobacterium spp., Lb. plantarum, Lb. helveticus, and Lb. acidophilus revealed no significant difference between the 3 regions; nevertheless, Lactobacillus paracasei, Lactobacillus fermentum, Lactobacillus sakei, and Lactobacillus delbrueckii ssp. bulgaricus exhibited different degrees of variation across 3 regions. The results demonstrate that traditional fermented dairy products from different regions of Russia have complex compositions of LAB species. The diversity of LAB might be related to the type of fermented dairy product, geographical origin, and manufacturing process. Descriptors Links Book Title Database Publisher American Dairy Science Association. Published by Elsevier Inc Data Source Authors Yu,J., Wang,H.M., Zha,M.S., Qing,Y.T., Bai,N., Ren,Y., Xi,X.X., Liu,W.J., Menghe,B.L., Zhang,H.P. Original/Translated Title URL Date of Electronic 20150523 PMCID Editors
Diversity of lactic acid bacteria associated with traditional fermented dairy products in Mongolia	2011	Key Laboratory of Dairy Biotechnology and Engineering, Education Ministry of P. R. China, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010018, P. R. China.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Journal of dairy science Periodical, Abbrev. J.Dairy Sci. Pub Date Free Form Jul Volume 94 Issue 7 Start Page 3229 Other Pages 3241 Notes CI: Copyright (c) 2011; JID: 2985126R; 0 (RNA, Bacterial); 0 (RNA, Ribosomal, 16S); 2010/08/16 [received]; 2011/03/18 [accepted]; ppublish Place of Publication United States ISSN/ISBN 1525-3198; 0022-0302 Accession Number PMID: 21700007 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; IM DOI 10.3168/jds.2010-3727 [doi] Output Language Unknown(0) PMID 21700007 Abstract Spontaneous milk fermentation has a long history in Mongolia, and beneficial microorganisms have been handed down from one generation to the next for use in fermented dairy products. The objective of this study was to investigate the diversity of lactic acid bacteria (LAB) communities in fermented yak, mare, goat, and cow milk products by analyzing 189 samples collected from 13 different regions in Mongolia. The LAB counts in these samples varied from 3.41 to 9.03 log cfu/mL. Fermented yak and mare milks had almost identical mean numbers of LAB, which were significantly higher than those in fermented goat milk but slightly lower than those in fermented cow milk. In total, 668 isolates were obtained from these samples using de Man, Rogosa, and Sharpe agar and M17 agar. Each isolate was considered to be presumptive LAB based on gram-positive and catalase-negative properties, and was identified at the species level by 16S rRNA gene sequencing, multiplex PCR assay, and restriction fragment length polymorphism analysis. All isolates from Mongolian dairy products were accurately identified as Enterococcus faecalis (1 strain), Enterococcus durans (3 strains), Lactobacillus brevis (3 strains), Lactobacillus buchneri (2 strains), Lactobacillus casei (16 strains), Lactobacillus delbrueckii ssp. bulgaricus (142 strains), Lactobacillus diolivorans (17 strains), Lactobacillus fermentum (42 strains), Lactobacillus helveticus (183 strains), Lactobacillus kefiri (6 strains), Lactobacillus plantarum ssp. plantarum (7 strains), Lactococcus lactis ssp. lactis (7 strains), Leuconostoc lactis (22 strains), Leuconostoc mesenteroides (21 strains), Streptococcus thermophilus (195 strains), and Weissella cibaria (1 strain). The predominant LAB were Strep. thermophilus and Lb. helveticus, which were isolated from all sampling sites. The results demonstrate that traditional fermented dairy products from different regions of Mongolia have complex compositions of LAB species. Such diversity of LAB provides useful information for further studies of probiotic strain selection and starter culture design, with regard to the industrial production of traditional fermented milk. Descriptors Links Book Title Database Publisher American Dairy Science Association. Published by Elsevier Inc Data Source Authors Yu,J., Wang,W.H., Menghe,B.L., Jiri,M.T., Wang,H.M., Liu,W.J., Bao,Q.H., Lu,Q., Zhang,J.C., Wang,F., Xu,H.Y., Sun,T.S., Zhang,H.P. Original/Translated Title URL Date of Electronic PMCID Editors
Identification of Coccoidal Bacteria in Traditional Fermented Milk Products from Mongolia, and the Fermentation Properties of the Predominant Species, Streptococcus thermophilus	2015	Key Laboratory of Dairy Biotechnology and Engineering, Education Ministry of P. R. China, Department of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China.; Key Laboratory of Dairy Biotechnology and Engineering, Edu	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Korean journal for food science of animal resources Periodical, Abbrev. Korean J.Food Sci.Anim.Resour. Pub Date Free Form Volume 35 Issue 5 Start Page 683 Other Pages 691 Notes LR: 20160115; JID: 101660566; OID: NLM: PMC4670899; OTO: NOTNLM; 2015/05/19 [received]; 2015/09/25 [revised]; 2015/09/26 [accepted]; 2015/10/31 [epublish]; ppublish Place of Publication Korea (South) ISSN/ISBN 1225-8563; 1225-8563 Accession Number PMID: 26761898 Language eng SubFile Journal Article DOI 10.5851/kosfa.2015.35.5.683 [doi] Output Language Unknown(0) PMID 26761898 Abstract The objective of this study was to identify the coccoidal bacteria present in 188 samples of fermented yaks', mares' and cows' milk products collected from 12 different regions in Mongolia. Furthermore, we evaluated the fermentation properties of ten selected isolates of the predominant species, Streptococcus (S.) thermophiles, during the process of milk fermentation and subsequent storage of the resulting yoghurt at 4. Overall, 159 isolates were obtained from 188 samples using M17 agar. These isolates were presumed to be lactic acid bacteria based on their gram-positive and catalase-negative properties, and were identified to species level using 16S rRNA gene sequence analysis. These coccoid isolates were distributed in four genera and six species: Enterococcus (E.) durans, Enterococcus (E.) faecalis, Lactococcus (Lac.) subsp. lactis, Leuconostoc (Leuc.) lactis, Leuconostoc (Leuc.) mesenteroides. subsp. mesenteroides and S. thermophilus. Among these S. thermophilus was the most common species in most samples. From evaluation of the fermentation characteristics (viable counts, pH, titratable acidity [TA]) of ten selected S. thermophilus isolates we could identify four isolates (IMAU 20246, IMAU20764, IMAU20729 and IMAU20738) that were fast acid producers. IMAU20246 produced the highest concentrations of lactic acid and formic acid. These isolates have potential as starter cultures for yoghurt production. Descriptors Links Book Title Database Publisher Data Source Authors Ren,Y., Liu,W., Zhang,H. Original/Translated Title URL Date of Electronic 20151031 PMCID PMC4670899 Editors
Determination of polycyclic aromatic hydrocarbons in water samples using online microextraction by packed sorbent coupled with gas chromatography-mass spectrometry	2012	Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, China.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Talanta Periodical, Abbrev. Talanta Pub Date Free Form 30-May Volume 94 Issue Start Page 152 Other Pages 157 Notes CI: Copyright (c) 2012; JID: 2984816R; 0 (Polycyclic Hydrocarbons, Aromatic); 0 (Water Pollutants, Chemical); 2012/01/13 [received]; 2012/02/27 [revised]; 2012/03/04 [accepted]; 2012/03/10 [aheadofprint]; ppublish Place of Publication Netherlands ISSN/ISBN 1873-3573; 0039-9140 Accession Number PMID: 22608428 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; IM DOI 10.1016/j.talanta.2012.03.010 [doi] Output Language Unknown(0) PMID 22608428 Abstract A fully automated microextraction by packed sorbents (MEPS) coupled with large volume injection gas chromatography-mass spectrometry (GC-MS) has been developed for the determination of eight polycyclic aromatic hydrocarbons (PAHs) in environmental water samples. Naphthalene (Nap), pyrene (Pyr), anthracene, acenaphthylene, phenanthrene, fluoranthene (Flr), fluorene and acenaphthene were the PAHs studied. The performance of the microextraction-GC-MS protocol was compared with solid phase extraction (SPE) and GC-MS analysis. Under optimized experimental conditions, the methods were linear for all analytes in the following ranges: 0.05-2.0 mug L(-1) (MEPS) and 0.25-10.0 mug L(-1) (SPE). The correlation coefficients (R(2)) were in the range 0.9965-0.9997 (MEPS) and 0.9978-0.9998 (SPE) for all the analytes. Limits of detection (LODs) for 2 mL samples (MEPS) ranged from 0.8 ng L(-1) to 8.2 ng L(-1). LODs for 50 mL samples (SPE) were between 4.8 ng L(-1) and 35.9 ng L(-1). The two methods were successfully applied to the determination of the 8 PAHs in environmental waters, with recoveries in the range of 70-117% (MEPS) and 72-134% (SPE) for a real spiked sample. The two sample preparation processes showed good repeatabilities with intra-day relative standard deviations below 14.0% (MEPS) and 14.6% (SPE). Nap, Flr and Pyr were found in a river water sample. Descriptors Links Book Title Database Publisher Elsevier B.V Data Source Authors Fu,S., Fan,J., Hashi,Y., Chen,Z. Original/Translated Title URL Date of Electronic 20120310 PMCID Editors
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...
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
Polydopamine supported preparation method for solid-phase microextraction coatings on stainless steel wire	2011	Key Laboratory of Chemistry of Northwestern Plant Resources, CAS/Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, No. 18 Tianshui Road, Lanzhou, Gansu 730000, China.	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 10-Jun Volume 1218 Issue 23 Start Page 3601 Other Pages 3607 Notes LR: 20131121; CI: Copyright (c) 2011; JID: 9318488; 0 (Polycyclic Hydrocarbons, Aromatic); 0 (Soil); 0 (Water Pollutants, Chemical); 059QF0KO0R (Water); 12597-68-1 (Stainless Steel); 660YQ98I10 (Potassium Chloride); 91D9GV0Z28 (Durapatite); VTD58H1Z2X (Do Place of Publication Netherlands ISSN/ISBN 1873-3778; 0021-9673 Accession Number PMID: 21531422 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; IM DOI 10.1016/j.chroma.2011.04.018 [doi] Output Language Unknown(0) PMID 21531422 Abstract In this paper, we introduced a novel and versatile route to prepare solid-phase microextraction coatings on the chemically inert stainless steel wire. Polydopamine films can be created on metallic substrates by an oxidant-induced polymerization and subsequently support various secondary reactions to prepare functional surfaces. In the present work, polydopamine-bioactivated stainless steel wire was successfully modified by nanostructured hydroxyapatite. Extraction performance of the fiber was assessed on several polycyclic aromatic hydrocarbons in water solutions. Extraction mechanism was suggested based on the correlation of partition coefficients and LogPs. Both aqueous and solid real life samples were used to test the reliability of the solid-phase microextraction-gas chromatography method; some analytes were detected and quantified. Descriptors Links Book Title Database Publisher Elsevier B.V Data Source Authors Feng,J., Sun,M., Li,J., Xu,L., Liu,X., Jiang,S. Original/Translated Title URL Date of Electronic 20110414 PMCID Editors
Graphene oxide decorated with silver nanoparticles as a coating on a stainless-steel fiber for solid-phase microextraction	2015	Key Laboratory of Chemistry of Northwestern Plant Resources, CAS and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China.; Key Laboratory of Chemistry of Northwestern Pl	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Journal of separation science Periodical, Abbrev. J.Sep.Sci. Pub Date Free Form Jul Volume 38 Issue 14 Start Page 2439 Other Pages 2446 Notes CI: (c) 2015; JID: 101088554; 0 (Oxides); 0 (Polycyclic Hydrocarbons, Aromatic); 12597-68-1 (Stainless Steel); 3M4G523W1G (Silver); 7782-42-5 (Graphite); OTO: NOTNLM; 2015/02/15 [received]; 2015/04/21 [revised]; 2015/04/21 [accepted]; 2015/06/03 [aheadofp Place of Publication Germany ISSN/ISBN 1615-9314; 1615-9306 Accession Number PMID: 25931422 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; IM DOI 10.1002/jssc.201500308 [doi] Output Language Unknown(0) PMID 25931422 Abstract A novel graphene oxide decorated with silver nanoparticles coating on a stainless-steel fiber for solid-phase microextraction was prepared. Scanning electron microscopy and X-ray photoelectron spectroscopy were used to characterize the coating surface and showed that silver nanoparticles were dispersed on the wrinkled graphene oxide surface. Coupled to gas chromatography with flame ionization detection, the extraction abilities of the fiber for polycyclic aromatic hydrocarbons were examined in the headspace solid-phase microextraction mode. The extraction parameters including adsorption time, adsorption temperature, salt concentration, desorption time and desorption temperature were investigated. Under the optimized condition, wide linearity with low limits of detection from 2 to 10 ng/L was obtained. The relative standard deviations for single-fiber repeatability and fiber-to-fiber reproducibility were less than 10.6 and 17.5%, respectively. The enrichment factors were from 1712.5 to 4503.7, showing the fiber has good extraction abilities. Moreover, the fiber exhibited a good stability and could be reused for more than 120 times. The established method was also applied for determination of polycyclic aromatic hydrocarbons in two real water samples and the recoveries of analytes ranged from 84.4-116.3% with relative standard deviations less than 16.2%. Descriptors Links Book Title Database Publisher WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Data Source Authors Wang,L., Hou,X., Li,J., Liu,S., Guo,Y. Original/Translated Title URL Date of Electronic 20150603 PMCID Editors
Application of beta-cyclodextrin-modified, carbon nanotube-reinforced hollow fiber to solid-phase microextraction of plant hormones	2014	Key Laboratory of Chemistry of Northwestern Plant Resources of the CAS 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 o	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 29-Dec Volume 1374 Issue Start Page 23 Other Pages 30 Notes LR: 20151119; CI: Copyright (c) 2014; JID: 9318488; 0 (Glycolates); 0 (Nanotubes, Carbon); 0 (Naphthaleneacetic Acids); 0 (Plant Growth Regulators); 0 (beta-Cyclodextrins); 33T7G7757C (1-naphthaleneacetic acid); 717GVR334R (2-naphthoxyacetic acid); JV039J Place of Publication Netherlands ISSN/ISBN 1873-3778; 0021-9673 Accession Number PMID: 25435464 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; IM DOI 10.1016/j.chroma.2014.11.029 [doi] Output Language Unknown(0) PMID 25435464 Abstract A new, efficient, and environmental friendly solid-phase microextraction (SPME) medium based on beta-cyclodextrin (beta-CD)-modified carbon nanotubes (CNTs) and a hollow fiber (HF) was prepared. Functionalized beta-CD was covalently linked to the surface of the carboxylic CNTs and then the obtained nanocomposite was immobilized into the wall pores of HFs under ultrasonic-assisted effect. The scanning electron microscope was used to inspect surface characteristics of fibers, demonstrating the presence of nanocomposites in their wall pores. The reinforced HF was employed in SPME, and its extraction performance was evaluated by analyzing 1-naphthaleneacetic acid (NAA) and 2-naphthoxyacetic acid (2-NOA) in vegetables. Without any tedious clean-up procedure, analytes were extracted from the sample to the adsorbent and organic solvent immobilized in HFs and then desorbed in acetonitrile prior to chromatographic analysis. Under the optimized extraction conditions, the method provided 275- and 283-fold enrichment factors of NAA and 2-NOA, low limits of detection and quantification (at an ngg(-1) level), satisfactory spiked recoveries, good inter-fiber repeatability, and batch-to-batch reproducibility. The selectivity of the developed fiber was investigated to three structurally similar compounds and two reference compounds with recognition coefficients up to 3.18. The obtained results indicate that the newly developed fiber is a feasible, selective, green, and cost-effective microextraction medium and could be successfully applied for extraction and determination of naphthalene-derived plant hormones in complex matrices. Descriptors Links Book Title Database Publisher Elsevier B.V Data Source Authors Song,X.Y., Ha,W., Chen,J., Shi,Y.P. Original/Translated Title URL Date of Electronic 20141118 PMCID Editors

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