YAMASHITA, KazukoOKAMOTO, MasahikoNAKAI, KiyoshiAnal SciAnalytical Sciences the International Journal of the Japan Society for Analytical ChemistryNovel calibrants for accurate mass measurement in ESI-MS . Yamashita K, Okamoto M, Nakai K . Anal Sci ( 2003 ) 19 1191 ....
The utility of ESI-MS for studying the enantioselectivity of catalytic asymmetric reactions by measurement of the ee value of product or the different intensity of reactive intermediates/complexes involved in the asymmetric reactions,and the further evaluating and screening chiral catalysts would be discus...
在赫兹。 ESI-MS和HR-ESI-MS : 相关内容 aAfter to evaluate the five countries criteria 以后评估五个国家标准[translate] aFor the biochemical reaction process, 为生物化学的反应过程,[translate] abuy and use steam power in a game 买并且使用蒸汽生产额在赛[translate] ...
Silicate and metal species with both positive and negative ions in solutions were examined by electrospray ionization mass spectrometry (ESI-MS). Comparing with detected species in chloride solutions of group-2 elements and transition metals (MCl2), and silicate solutions with MCl2, the reaction mec...
ESI, electrospray ionization; MS, mass spectrometry; MS/MS, tandem mass spectrometry; RRT, relative retention time; S/N, signal-to-noise ratio; SRM, selected reaction monitoring. a Each sterol was derivatized to picolinyl ester. Roman numerals correspond to those in Fig. 1. b [M+Na+CH3CN...
LC/ESI-MS-MSplasma concentrationObjective:To develop a sensitive and specific LC/electrospray ionization(ESI)-MS-MS method for determination of mefformin in human plasma.Methods:The analyte was treated by methanol precipitation to remove protein component from human plasma,then separated on a cyano-...
of mass spectra showed that, for the presently investigated amines, electrostatic external adducts of CDs with protonated amines are detected by ESI−MS.Pa... P Franchi,M Lucarini,E Mezzina,... - 《Journal of the American Chemical Society》 被引量: 85发表: 2004年 Production of 1,3-propan...
Most of these are able to detect and determine a few BPs, up to 8 compounds, in a single LC-ESI(−)-MS/MS method. However, since the number of possible (bis)phenolic compounds of interest is substantially larger, in the present study an LC-ESI-MS/MS method was developed that is ...
Chromatographic separation of the analytes was achieved on a RP C-18 column using water: 1% formic acid in water (v/v):acetonitrile gradient mobile phase. Strophanthin-K glycosides studied in ESI-MS in negative ion mode formed abundant adduct ions [ M + HCOO] while the pseudomolecular ...
Structural elucidation of process-related impurities in escitalopram by LC/ESI-MS and NMR[J] . Bhanu Raman,Brajesh A. Sharma,Pradeep D. Ghugare,Sanjay Nandavadekar,Dharmendra Singh,Pravin K. Karmuse,Ashok Kumar.Journal of Pharmaceutical and Biomedical Analysis . 2010 (4)...