Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Bud-Gen Chen"'
Autor:
Bud-Gen Chen, 陳蓓君
98
Analytes are often chemically derivatized prior to their GC-MS methods of analysis for the following reasons: (a) to bring the analytes to the chemical forms that are more comparable to the chromatographic environment; (b) to create a separat
Analytes are often chemically derivatized prior to their GC-MS methods of analysis for the following reasons: (a) to bring the analytes to the chemical forms that are more comparable to the chromatographic environment; (b) to create a separat
Externí odkaz:
http://ndltd.ncl.edu.tw/handle/52370229632118000213
Publikováno v:
Journal of Food and Drug Analysis. 16
Drugs are often chemically derivatized prior to their GC-MS analysis for the following reasons: (a) to bring the analytes to the chemical forms that are more compatible to the chromatographic environment; (b) to create a separation mechanism or to ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c84e6a889eae3aeb2edb8b11e27bba6
https://doi.org/10.38212/2224-6614.2373
https://doi.org/10.38212/2224-6614.2373
Publikováno v:
Chromatographia. 76:571-576
Methylglyoxal (MG) is present in the human system. In the cell, MG is degraded by glyoxalase 1 (Glo 1), an enzyme differentially expressed in several mouse models of anxiety-related behavior. It has also been associated with the formation of advanced
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aed4adee2da6d38a4288156132f54f91
https://doi.org/10.1007/s10337-013-2397-7
https://doi.org/10.1007/s10337-013-2397-7
Autor:
Shiao-Ping Huang, Yu-Shan Wang, Dong-Liang Lin, A. Wayne Jones, Ya-Ching Hsu, Mei-Han Huang, Hsu-Chun Liu, Shu-Ching Yang, Tai-Jui Chen, Bud-Gen Chen, Ray H. Liu
Publikováno v:
Analytical and Bioanalytical Chemistry. 405:3921-3928
Methadone (MTD) is widely used for detoxification of heroin addicts and also in pain management programs. Information about the distribution of methadone between blood, plasma, and alternative specimens, such as oral fluid (OF), is needed in clinical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::443392e2315d02d483dd629f4f4adfba
https://doi.org/10.1007/s00216-012-6460-2
https://doi.org/10.1007/s00216-012-6460-2
Publikováno v:
The Analyst. 136:393-400
It is a common knowledge that detector fatigue causes a calibration curve to deviate from the preferred linear relationship at the higher concentration end. With the adaptation of an isotopically labeled analog of the analyte as the internal standard
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2057e13d9a6019f043699fe942bb1f0f
https://doi.org/10.1039/c0an00315h
https://doi.org/10.1039/c0an00315h
Autor:
Chiung Dan Chang, Ray H. Liu, Yi-Jun Chen, Wei-Tun Chang, Chia-Ting Wang, Sheng-Meng Wang, Bud-Gen Chen
Publikováno v:
Journal of the American Society for Mass Spectrometry. 19:598-608
In gas chromatography-mass spectrometry methods of analysis adopting the analyte's isotopic analog as the internal standard (IS), the cross-contribution (CC) phenomenon -- contribution of IS to the intensities of the ions designating the analyte, and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f3c8fd6ae665827f460f04faa6a3a92
https://doi.org/10.1016/j.jasms.2008.01.004
https://doi.org/10.1016/j.jasms.2008.01.004
Publikováno v:
Journal of Mass Spectrometry. 42:1012-1023
Opiates such as hydrocodone, hydromorphone, oxycodone, noroxycodone, and oxymorphone reportedly may interfere with the analysis of morphine and codeine. The analysis of these compounds themselves also is an important issue. Thus, double derivatizatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f6a0a57bda7227460edd9b7b8cff6b8
https://doi.org/10.1002/jms.1227
https://doi.org/10.1002/jms.1227
Autor:
Matthias Eder, Melanie Meyer, Giuseppina Maccarrone, Christoph W. Turck, Ray H. Liu, Boris Hambsch, Julia Brenndörfer, Charilaos Avrabos, Bud-Gen Chen, Rainer Landgraf
Publikováno v:
Journal of neurochemistry. 113(5)
Methylglyoxal (MG) is a highly reactive metabolite that forms adducts with basic amino acid side chains in proteins. MG is degraded by glyoxalase1 (GLO1), an enzyme shown to be differentially expressed in several mouse models of anxiety-related behav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e977100d6373e13c0cc080be3668f7fe
https://pubmed.ncbi.nlm.nih.gov/20345757
https://pubmed.ncbi.nlm.nih.gov/20345757
Autor:
Chi-Liang Chern, Chiung Dan Chang, Daw-Ming Chang, Mei-Han Huang, Meng-Yan Wu, Yau-Jiunn Lee, Hsiang Ching Wang, Bud-Gen Chen, Ray H. Liu, Chu-I Lee, Tai-Guang Wu
Publikováno v:
Journal of chromatography. A. 1204(1)
A two-step derivatization approach has been developed to enable the simultaneous analysis of glyoxal, methylglyoxal, and 3-deoxyglucosone by the most efficient and widely applied GC-MS methodology. These three analytes are reactive carbonyl compounds
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc18a7379f2bfa078e4d9d7006cef8e6
https://pubmed.ncbi.nlm.nih.gov/18692194
https://pubmed.ncbi.nlm.nih.gov/18692194
Publikováno v:
Journal of chromatography. A. 1182(1)
Various chemical derivatization approaches have been adapted for the analysis of buprenorphine and its major metabolite (norbuprenorphine) by GC-MS based methodologies. These approaches included alkylation, acylation, and silylation resulting in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7d77ecd86373c5293581ed0de09aea2
https://pubmed.ncbi.nlm.nih.gov/18215395
https://pubmed.ncbi.nlm.nih.gov/18215395