Suchergebnisse - "Chromatographic methods and physical methods associated with chromatography"

Quantitative measurement of JWH-018 and JWH-073 metabolites excreted in human urine von Moran, Cindy L, Le, Vi-Huyen, Chimalakonda, Krishna C, Smedley, Amy L, Lackey, Felisia D, Owen, Suzanne N, Kennedy, Paul D, Endres, Gregory W, Ciske, Fred L, Kramer, James B, Kornilov, Andrei M, Bratton, L D, Dobrowolski, Paul J, Wessinger, William D, Fantegrossi, William E, Prather, Paul L, James, Laura P, Radominska-Pandya, Anna, Moran, Jeffery H

“… Evaluation of human urine specimens collected after the subjects reportedly administered JWH-018 or a mixture of JWH-018 and JWH-073 provides preliminary evidence of clinical utility …”
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Toward a predictive model of Alzheimer's disease progression using capillary electrophoresis-mass spectrometry metabolomics von Ibáñez, Clara, Simó, Carolina, Martín-Álvarez, Pedro J, Kivipelto, Miia, Winblad, Bengt, Cedazo-Mínguez, Angel, Cifuentes, Alejandro

“… ) is developed to examine metabolic differences in CSF samples from subjects with different cognitive status related to AD progression …”
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Large-scale human metabolomics studies: a strategy for data (pre-) processing and validation von Bijlsma, Sabina, Bobeldijk, Ivana, Verheij, Elwin R, Ramaker, Raymond, Kochhar, Sunil, Macdonald, Ian A, van Ommen, Ben, Smilde, Age K

“… A large metabolomics study was performed on 600 plasma samples taken at four time points before and after a single intake of a high fat test meal by obese and lean subjects …”
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Particle packed columns and monolithic columns in high-performance liquid chromatography-comparison and critical appraisal von Unger, Klaus K., Skudas, Romas, Schulte, Michael M.

“… The next section is devoted to three subjects, which reflect the recent development and the main future directions of packed columns …”
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Combining chromatography and chemometrics for the characterization and authentication of fats and oils from triacylglycerol compositional data—A review von Bosque-Sendra, Juan M., Cuadros-Rodríguez, Luis, Ruiz-Samblás, Cristina, de la Mata, A. Paulina

“… ► Chemometric tools applied to authenticate fat and oils. The characterization and authentication of fats and oils is a subject of great importance for market and health aspects …”
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Molecular simulation studies of reversed-phase liquid chromatography von Lindsey, Rebecca K., Rafferty, Jake L., Eggimann, Becky L., Siepmann, J. Ilja, Schure, Mark R.

“… ► A review with a focus on molecular insights obtained from recent molecular simulations. ► Background on molecular simulation techniques and system set-up. ► …”
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Developments on chemometric approaches to optimize and evaluate microextraction von Stalikas, Constantine, Fiamegos, Yiannis, Sakkas, Vasilios, Albanis, Triantafyllos

“… Chemometric experimental design in microextraction plays a crucial role in sustaining the highest quality of analytical data. Making use of the main …”
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Use of urine volatile organic compounds to discriminate tuberculosis patients from healthy subjects von Banday, Khalid Muzaffar, Pasikanti, Kishore Kumar, Chan, Eric Chun Yong, Singla, Rupak, Rao, Kanury Venkata Subba, Chauhan, Virander Singh, Nanda, Ranjan Kumar

“… A wide array of molecules are present in urine and reflect the pathophysiological condition of a subject …”
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PBDEs in environmental samples: Sampling and analysis von KROL, Sylwia, ZABIEGALA, Bozena, NAMIESNIK, Jacek

“… ). The paper reviews the subject literature concerning analytical procedures routinely sed for monitoring polybrominated diphenyl ethers (PBDE …”
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Preparation and characterization of fluorophenylboronic acid-functionalized monolithic columns for high affinity capture of cis-diol containing compounds von Li, Qianjin, Lü, Chenchen, Liu, Zhen

“… •Three fluorophenylboronic acid-functionalized monoliths were prepared.•The monoliths exhibited untrahigh boronate affinity toward cis-diol compounds.•The …”
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Pyridinylboronic acid-functionalized organic–silica hybrid monolithic capillary for the selective enrichment and separation of cis-diol-containing biomolecules at acidic pH von Li, Daojin, Li, Qianjin, Wang, Shuangshou, Ye, Jin, Nie, Hongyuan, Liu, Zhen

“… •A 3-pyridinylboronic acid-functionalized hybrid monolithic column was prepared.•The monolith exhibited the lowest binding pH (4.5) to date.•The monolith …”
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Chemically modified cellulose paper as a thin film microextraction phase von Saraji, Mohammad, Farajmand, Bahman

“… •Cellulose papers were modified with different chemical reagents.•The modified cellulose papers were used as extracting phase for thin film microextraction …”
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Metabolomic profiling of human urine in hepatocellular carcinoma patients using gas chromatography/mass spectrometry von Wu, Hao, Xue, Ruyi, Dong, Ling, Liu, Taotao, Deng, Chunhui, Zeng, Huazong, Shen, Xizhong

“… ) male patients and normal male subjects ( n = 20). The urinary endogenous metabolome was assayed using chemical derivatization followed by GC/MS …”
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A reproducible and high-throughput HPLC/MS method to separate sarcosine from α- and β-alanine and to quantify sarcosine in human serum and urine von Meyer, Tamra E, Fox, Stephen D, Issaq, Haleem J, Xu, Xia, Chu, Lisa W, Veenstra, Timothy D, Hsing, Ann W

“… While sarcosine was recently identified as a potential urine biomarker for prostate cancer, further studies have cast doubt on its utility to diagnose this …”
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Online micro-solid-phase extraction based on boronate affinity monolithic column coupled with high-performance liquid chromatography for the determination of monoamine neurotransmitters in human urine von Yang, Xiaoting, Hu, Yufei, Li, Gongke

“… •A boronate affinity monolithic column was prepared by in situ polymerization.•The monolithic column showed high extraction capacity to four monoamines.•An …”
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Identification and characterization of deamidation sites in the conserved regions of human immunoglobulin gamma antibodies von Chelius, Dirk, Rehder, Douglas S, Bondarenko, Pavel V

“… Deamidation of asparagine residues of biological pharmaceuticals is a major cause of chemical degradation if the compounds are not formulated and stored …”
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Variability analysis of human plasma and cerebral spinal fluid reveals statistical significance of changes in mass spectrometry-based metabolomics data von Crews, Bridgit, Wikoff, William R, Patti, Gary J, Woo, Hin-Koon, Kalisiak, Ewa, Heideker, Johanna, Siuzdak, Gary

“… Analytical and biological variability are issues of central importance to human metabolomics studies. Here both types of variation are examined in human plasma …”
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Ionic liquids modified dummy molecularly imprinted microspheres as solid phase extraction materials for the determination of clenbuterol and clorprenaline in urine von Yan, Hongyuan, Liu, Suting, Gao, Mengmeng, Sun, Ning

“… •Ionic liquid modified dummy imprinted microspheres (DMIMs) were synthesized.•DMIMs-SPE for rapid isolation of clenbuterol and clorprenaline in urine.•Matrix …”
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Practical approach for the identification and isomer elucidation of biomarkers detected in a metabonomic study for the discovery of individuals at risk for diabetes by integrating the chromatographic and mass spectrometric information von Chen, Jing, Zhao, Xinjie, Fritsche, Jens, Yin, Peiyuan, Schmitt-Kopplin, Philippe, Wang, Wenzhao, Lu, Xin, Häring, Hans Ulrich, Schleicher, Erwin D, Lehmann, Rainer, Xu, Guowang

“… of a cohort of healthy, insulin sensitive subjects and clinically …”
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Ultrasensitive quantification of serum vitamin D metabolites using selective solid-phase extraction coupled to microflow liquid chromatography and isotope-dilution mass spectrometry von Duan, Xiaotao, Weinstock-Guttman, Bianca, Wang, Hao, Bang, Eunjin, Li, Jun, Ramanathan, Murali, Qu, Jun

“… The capacity for quantification of active metabolites of vitamin D (VitD) is highly valuable to evaluate the risks and therapies for numerous diseases such as …”
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