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MALDI Mass Spectrometry Using 2,4,6-Trihydroxyacetophenone and 2,4-Dihydroxyacetophenone with Cyclodextrins: Suppression of Matrix-related Ions in Low-molecular-weight Region
2,4,6-Trihydroxyacetophenone 2,4-Dihydroxyacetophenone Cyclodextrins
2010/9/14
Matrix-assisted laser desorption/ionization (MALDI) mass spectrometry of a model peptide, Substance P (SubP), was carried out using 2,4,6-trihydroxyacetophenone (THAP) and 2,4-dihydroxyacetophenone (D...
Effect of Cyclodextrins on the Thermal Epimerization of Tea Catechins
tea catechins thermal epimerization cyclodextrin
2009/5/8
The epimerization reaction of tea catechins was investigated at pH 5.5 and 120 °C in the absence/presence of cyclodextrins (CDs). In the absence of CDs, a considerable quantity (∼20%) of product...
Isoperibolic Titration Calorimetry as a Tool for the Prediction of Thermodynamic Properties of Cyclodextrins
Isoperibolic titration calorimetry Cyclodextrins Thermodynamic properties
2008/10/27
The interaction of guest molecules ranging from pentan-1-ol to octan-1-ol with α-cyclodextrin (α-CD) in water of has been studied calorimetrically at 283.15, 288.15, 293.15, 298.15 and 308.15 K with a...
Effect of Cyclodextrins on the Thermal Epimerization of Tea Catechins
tea catechins thermal epimerization cyclodextrin
2010/2/3
The epimerization reaction of tea catechins was investigated at pH 5.5 and 120 °C in the absence/presence of cyclodextrins (CDs). In the absence of CDs, a considerable quantity (∼20%) of product...
The Effects of Cyclodextrins on the Color Change of Acid-base Indicators
detection of cyclodextrin acid-base indicator color change
2008/4/19
To detect various kinds of cyclodextrins by visual observation, the authors selected 7 kinds of acid-base indicators from commercially available ones whose color were changed by the addition of variou...
Separation of tramadol enantiomers by capillary electrophoresis using highly sulfated cyclodextrins
tramadol enantiomers separation capillary electrophoresis
2010/2/4
In the pharmaceutical industry a continuing need for chiral resolution of drugs for various purposes and in diverse matrices exist. For these reasons, analysts may require a number of different separa...