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 | 25 may
07:42 | Rapid and sensitive solid phase extraction-large volume injection-gas...
Publication year: 2012 Source:Journal of Chromatography A, Volume 1243 Sabrina Moret, Laura Barp, Giorgia Purcaro, Lanfranco S. Conte A rapid off-line solid phase extraction-large volume injection-gas chromatography-flame ionisation detection (SPE-LVI-GC-FID) method, based on the use of silver silica gel and low solvent consumption, was developed...
sciencedirect.com 3 minutes ago |
| 25 may
07:42 | Low-voltage electrically-enhanced microextraction as a novel technique...
Publication year: 2012 Source:Journal of Chromatography A, Volume 1243 Shahram Seidi, Yadollah Yamini, Maryam Rezazadeh, Ali Esrafili In the present work, for the first time a new set-up was presented for simultaneous extraction of acidic and basic drugs using a recent novel electrically-enhanced microextraction technique, termed electromembrane...
sciencedirect.com 3 minutes ago |
| 25 may
07:42 | Electro membrane extraction followed by low-density solvent based...
Publication year: 2012 Source:Journal of Chromatography A, Volume 1243 Liang Guo, Hian Kee Lee 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...
sciencedirect.com 3 minutes ago |
| 25 may
07:42 | Mass spectrometric identification and characterization of new...
Publication year: 2012 Source:Journal of Chromatography A, Volume 1243 Jianghai Lu, Genye He, Xiaobing Wang, Youxuan Xu, Yun Wu, Ying Dong, Zhenwen He, Xin Liu, Tao Bo, Gangfeng Ouyang Clomiphene, a selective estrogen receptor modulator, is prohibited by World Anti Doping Agency (WADA) out-of-competition and in-competition. As it is extensively...
sciencedirect.com 3 minutes ago |
| 25 may
07:42 | Three-dimensional cell bioreactor coupled with high performance liquid...
Publication year: 2012 Source:Journal of Chromatography A, Volume 1243 Zhao-Li Mou, Xiao-Ni Qi, Rui-Lin Liu, Jing Zhang, Zhi-Qi Zhang An efficient and convenient method, three-dimensional (3-D) cell bioreactor coupled with high performance liquid chromatography–mass spectrometry was developed for affinity screening and analysis of multiple...
sciencedirect.com 3 minutes ago |
| 25 may
07:42 | Rapid baseline-separation of all eight tocopherols and tocotrienols by...
Publication year: 2012 Source:Journal of Chromatography A, Volume 1243 Nadine Grebenstein, Jan Frank Of the eight natural vitamin E congeners (α-, β-, γ-, and δ-tocopherol and α-, β-, γ-, and δ-tocotrienol), the non-α-tocopherol congeners have unique biological properties that may contribute to human health. Their study in vivo has been...
sciencedirect.com 3 minutes ago |
| 25 may
07:42 | Determination of CMPO using HPLC–UV
Publication year: 2012 Source:Journal of Chromatography A, Volume 1243 Gracy Elias, Gary S. Groenewold, Bruce J. Mincher, Stephen P. Mezyk Octyl(phenyl)- N , N -diisobutylcarbamoylmethylphosphine oxide (CMPO) is an extractant proposed for selective separation of radionuclide metals from used nuclear fuel solutions using solvent extraction....
sciencedirect.com 3 minutes ago |
| 25 may
07:42 | Liquid chromatography coupled to tandem mass spectrometry for the...
Publication year: 2012 Source:Journal of Chromatography A, Volume 1243 Cristina Ripollés, Juan V. Sancho, Francisco J. López, Félix Hernández Ethylenethiourea (ETU) and propylenethiourea (PTU) are the main degradation products of dithiocarbamates fungicides, which are widely used in agriculture from several years ago. Their determination in...
sciencedirect.com 3 minutes ago |
| 25 may
07:42 | Analysis of electrophoretic soil humic acids fractions by...
Publication year: 2012 Source:Journal of Chromatography A, Volume 1243 Oleg A. Trubetskoj, Claire Richard, Ghislain Guyot, Guillaume Voyard, Olga E. Trubetskaya A combination of reversed-phase high performance liquid chromatography (RP HPLC) with on-line absorbance and fluorescence detection was used for analysis of chernozem soil humic acids (HAs)...
sciencedirect.com 3 minutes ago |
| 25 may
07:42 | High temperature gas chromatography–time-of-flight-mass spectrometry...
Publication year: 2012 Source:Journal of Chromatography A, Volume 1243 P.A. Sutton, S.J. Rowland High temperature gas chromatography (HTGC) is a routine technique for the analysis of high boiling compounds which are eluted from the column with oven cycling up to >400 °C. In contrast, the coupling of HTGC with mass spectrometry (HTGC–MS) has...
sciencedirect.com 3 minutes ago |
| 25 may
07:42 | Performance evaluation of non-targeted peak-based cross-sample...
Publication year: 2012 Source:Journal of Chromatography A, Volume 1243 Johannes Kiefl, Chiara Cordero, Luca Nicolotti, Peter Schieberle, Stephen E. Reichenbach, Carlo Bicchi The continuous interest in non-targeted profiling induced the development of tools for automated cross-sample analysis. Such tools were found to be selective or not...
sciencedirect.com 3 minutes ago |
| 25 may
07:42 | Combined quantification of faecal sterols, stanols, stanones and bile...
Publication year: 2012 Source:Journal of Chromatography A, Volume 1242 Jago Jonathan Birk, Michaela Dippold, Guido L.B. Wiesenberg, Bruno Glaser Faeces incorporation can alter the concentration patterns of stanols, stanones, Δ5-sterols and bile acids in soils and terrestrial sediments. A joint quantification of these substances would give robust...
sciencedirect.com 3 minutes ago |
| 25 may
07:42 | Hydrophobic interaction chromatography for purification of...
Publication year: 2012 Source:Journal of Chromatography A, Volume 1242 Karla Mayolo-Deloisa, Ma. Elena Lienqueo, Barbara Andrews, Marco Rito-Palomares, Juan A. Asenjo The chromatographic methods used for the purification of PEGylated proteins are mainly Size Exclusion (SEC) and Ion Exchange Chromatography (IEX). Although the PEGylation affects the...
sciencedirect.com 3 minutes ago |
| 25 may
07:42 | Comprehensive analysis of dipeptides in alcoholic beverages by...
Publication year: 2012 Source:Journal of Chromatography A, Volume 1242 Kei Takahashi, Masafumi Tokuoka, Hiromi Kohno, Nobuko Sawamura, Yuka Myoken, Akihiro Mizuno Fermented foods and beverages contain several different types of dipeptides, which are believed to be important components for taste. To date, however, a method for the comprehensive...
sciencedirect.com 3 minutes ago |
| 25 may
07:42 | Design of countercurrent separation of Ginkgo biloba terpene lactones...
Publication year: 2012 Source:Journal of Chromatography A, Volume 1242 Feng Qiu, J. Brent Friesen, James B. McAlpine, Guido F. Pauli Terpene lactones such as bilobalide, ginkgolides A, B, C, and J are major bioactive compounds of Ginkgo biloba L. Purification of these compounds is tedious due to their similar chemical properties. For the purpose of...
sciencedirect.com 3 minutes ago |
| 25 may
07:42 | Preparation and characterization of agarose–nickel nanoporous...
Publication year: 2012 Source:Journal of Chromatography A, Volume 1242 F. Asghari, M. Jahanshahi, A.A. Ghoreyshi Agarose–nickel nanoporous composite matrices with a series of densities, named Ag–Ni, were prepared herein for expanded bed adsorption of nanobioproduct/bioproduct by a water-in-oil emulsification method. The optical microscope (OM),...
sciencedirect.com 3 minutes ago |
| 25 may
07:42 | Simultaneous metabolite fingerprinting of hydrophilic and lipophilic...
Publication year: 2012 Source:Journal of Chromatography A, Volume 1242 Federica Pellati, Giulia Orlandini, Stefania Benvenuti In this study, a detailed phytochemical characterization of Echinacea pallida (Nutt.) Nutt. root extracts and dietary supplements was carried out for the first time by developing advanced chromatographic techniques, based on...
sciencedirect.com 3 minutes ago |
| 25 may
07:42 | Chemical anchoring of lauryl methacrylate-based reversed phase...
Publication year: 2012 Source:Journal of Chromatography A, Volume 1242 Shin Shu, Hiroharu Kobayashi, Masaki Okubo, Akhmad Sabarudin, Michio Butsugan, Tomonari Umemura In this paper, we describe a method for the preparation of easy-to-use reversed-phase monolithic microbore columns. Polyetheretherketone (PEEK) tubing with an outer diameter of...
sciencedirect.com 3 minutes ago |
| 25 may
07:42 | Comprehensive two-dimensional HepG2/cell membrane...
Publication year: 2012 Source:Journal of Chromatography A, Volume 1242 Xiaofei Chen, Yan Cao, Diya Lv, Zhenyu Zhu, Junping Zhang, Yifeng Chai Cell membrane chromatography (CMC) is a biological affinity chromatographic method using specific cell membrane as stationary phase. It has been proved to be a practical tool for investigating binding...
sciencedirect.com 3 minutes ago |
| 25 may
07:42 | Comparison of electrospray ionization, atmospheric pressure chemical...
Publication year: 2012 Source:Journal of Chromatography A, Volume 1242 Laurent Imbert, Mathieu Gaudin, Danielle Libong, David Touboul, Sonia Abreu, Philippe M. Loiseau, Olivier Laprévote, Pierre Chaminade A comparison of electrospray ionization (ESI), atmospheric pressure chemical ionization (APCI) and atmospheric pressure photoionization (APPI)...
sciencedirect.com 3 minutes ago |
| 25 may
07:42 | A novel on-line gold nanoparticle-catalyzed luminol chemiluminescence...
Publication year: 2012 Source:Journal of Chromatography A, Volume 1242 Qun Lin Zhang, Liang Wu, Chen Lv, Xiao Yue Zhang A novel on-line gold nanoparticle-catalyzed luminol–H 2 O 2 chemiluminescence (CL) detector for high-performance liquid chromatography (HPLC) was established, in which gold nanoparticles were produced by the on-line reaction of...
sciencedirect.com 3 minutes ago |
| 25 may
07:42 | Bis-pentafluorobenzyl derivatives of N-acetyl-l-methionine and...
Publication year: 2012 Source:Journal of Chromatography A, Volume 1242 Hans J. Leis, Fabrizio Donnarumma, Reinhold Wintersteiger, Regina Lazarus, Barbara Braml, Astrid Ortner, Werner Windischhofer Targeted anti-cancer combination therapy with infusion of N-acetyl- l -methionine (NALM) and N-acetyl- l -selenomethionine (NASeLM) shows promising...
sciencedirect.com 3 minutes ago |
| 25 may
07:42 | Gas chromatography/mass spectrometry comprehensive analysis of...
Publication year: 2012 Source:Journal of Chromatography A, Volume 1241 Joyce Cristale, Jordi Quintana, Roser Chaler, Francesc Ventura, Silvia Lacorte A multiresidue method based on gas chromatography coupled to quadrupole mass spectrometry was developed to determine organophosphorus flame retardants, polybromodiphenyl ethers (BDEs 28, 47, 99, 100,...
sciencedirect.com 3 minutes ago |
| 25 may
07:42 | Dynamic liquid–liquid–solid microextraction based on molecularly...
Publication year: 2012 Source:Journal of Chromatography A, Volume 1241 Qisheng Zhong, Yufei Hu, Yuling Hu, Gongke Li A novel sample preparation technique termed dynamic liquid–liquid–solid microextraction (DLLSME) was developed and on-line coupled to high performance liquid chromatography (HPLC) for direct extraction, desorption, and analysis...
sciencedirect.com 3 minutes ago |
| 25 may
07:42 | Determination of alkylphenols and phthalate esters in vegetables and...
Publication year: 2012 Source:Journal of Chromatography A, Volume 1241 J.I. Cacho, N. Campillo, P. Viñas, M. Hernández-Córdoba This paper describes a method for the determination of three alkylphenols (APs), 4- tert -octylphenol (tOP), 4- n -octylphenol (OP) and 4-nonylphenol (NP), and six phthalate esters (PEs), dimethylphthalate (DMP),...
sciencedirect.com 3 minutes ago |
| 25 may
07:42 | Analysis of common and emerging brominated flame retardants in house...
Publication year: 2012 Source:Journal of Chromatography A, Volume 1241 E.K. Kopp, H. Fromme, W. Völkel Brominated flame retardants (BFRs) are persistent and widespread chemicals. Therefore human beings are exposed to BFRs. House dust may be one source of exposure and contains a lot of xenobiotics in relatively high concentrations. In contrast to...
sciencedirect.com 3 minutes ago |
 | 25 may
07:42 | Behind “Fakegate”
What could be more American than encouraging a robust debate on one of the most controversial issues of the day? The answer -- for some on the...
townhall.com 3 minutes ago |
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