Spectrofluorometric determination of caffeine using acridine orange-β-cyclodextrin inclusion complex
نویسندگان
چکیده
منابع مشابه
Β-cyclodextrin Inclusion Complex of Curcumin
Formation of inclusion complex of curcumin with β-cyclodextrin ( β-CD) has been characterized by absorption and fluorescence spectroscopy. From temperature-dependent fluorescence measurements, the thermodynamic parameters ∆H and ∆S, for the complexation were estimated. Kinetics of binding was studied by stopped flow technique, from which the binding constants for inclusion complex was estimated...
متن کاملSpectrophotometric determination of anionic surfactants in wastewater using acridine orange
A simple and rapid spectrophotometric method for the determination of sodium dodecyl sulphate (SDS), an anionic surfactant (AS) is developed. SDS forms a yellow coloured complex with acridine orange (ACO), a cationic dye. The complex is extracted in toluene. The absorbance of the complex in toluene layer is measured at maximum wavelength (λmax) of 467 nm. The calibration curve is linear in the ...
متن کاملInvestigation of Inclusion Complex of Patchouli Alcohol with β-Cyclodextrin
The objective of this study was to improve the stability and water-solubility of patchouli alcohol by complexing with β-cyclodextrin (β-CD). The interactions between patchouli alcohol and β-CD were characterized by differential scanning calorimetry (DSC), Fourier transformation-infrared (FT-IR) spectroscopy, powder X-ray diffraction (PXRD), and Scanning electron microscope (SEM), respectively. ...
متن کاملDetermination of the Absolute Configuration of Aegelinol by Crystallization of Its Inclusion Complex with β-Cyclodextrin
The absolute configuration and structure of aegelinol, a pyranocoumarin isolated from Ferulago asparagifolia Boiss (Apiaceae), has been determined by crystallography. Crystal structure of the inclusion complex of aegelinol in β-cyclodextrin was determined (a = 15.404(1) Å, b = 15.281(1) Å, c = 17.890(1) Å, α = 99.662(1), β = 113.4230(1), γ = 102.481(1)°, P1; R1 = 6.71%) and allowed unambiguous ...
متن کاملInclusion Complex of β - Cyclodextrin and Quercetin . Thermodynamic Approach
CSABA PAL RACZ1, ROXANA-DIANA PASCA1, SANTA SZABOLCS1, IRINA KACSO2, GHEORGHE TOMOAIA3, AURORA MOCANU1, OSSI HOROVITZ1, MARIA TOMOAIA-COTISEL1* 1Babes-Bolyai University of Cluj-Napoca, Faculty of Chemistry and Chemical Engineering, Department of Physical Chemistry, 11 Arany J. Str., 400028 Cluj-Napoca, Romania 2National Institute of Research and Development for Molecular and Isotopic Technologi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Analytical Science and Technology
سال: 2013
ISSN: 1225-0163
DOI: 10.5806/ast.2013.26.6.353