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![Studies on Properties of Photo / Bio-Degradable Plastics]( "Studies on Properties of Photo / Bio-Degradable Plastics")
Studies on Properties of Photo / Bio-Degradable Plastics46,99 €![Stochastic dynamics mass spectrometry of caffeine metabolites]( "Stochastic dynamics mass spectrometry of caffeine metabolites")
Stochastic dynamics mass spectrometry of caffeine metabolites55,99 €![Studies on homogeneous and heterogeneous photo-catalytic degradation]( "Studies on homogeneous and heterogeneous photo-catalytic degradation")
Studies on homogeneous and heterogeneous photo-catalytic degradation40,99 €![PHOTO CATALYTIC APPLICATIONS OF NANOPARTICLES]( "PHOTO CATALYTIC APPLICATIONS OF NANOPARTICLES")
PHOTO CATALYTIC APPLICATIONS OF NANOPARTICLES36,99 €![Analytical methods for determining Fe(III) and Cu (II) ions]( "Analytical methods for determining Fe(III) and Cu (II) ions")
Analytical methods for determining Fe(III) and Cu (II) ions50,99 €![Photo sensitized Isomeric Bromo anilines and Isomeric Toluidines]( "Photo sensitized Isomeric Bromo anilines and Isomeric Toluidines")
Photo sensitized Isomeric Bromo anilines and Isomeric Toluidines32,99 €![Determination of Caffeine]( "Determination of Caffeine")
Determination of Caffeine33,99 €
In this project UV/Vis absorption spectra of caffeine in water and dichloromethane, copper sulphate, and mixture of caffeine and copper sulphate in water solution is investigated. UV/Vis absorption spectrum of Cu (II)-Caffeine complex is also investigated as a function of time during refluxing to check complex formation. The molar decadic absorption coefficient of caffeine is calculated. Fluorescence emission spectra of Cu (II)- Caffeine complex is also investigated and compared with its absorption band. Area normalization analysis method is used. Finally, a better derivative fluorescence method for determination of caffeine content of substances is recommended.