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Wajeha Abdle Diam
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Medicine & Pharmacology

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Dilution Effect on a Mixture Solution of Organic Dyes (Cumarin and Rohdamain) Wajeha Abdle Diam
Journal of Global Pharma Technology .
Publisher : Journal of Global Pharma Technology

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Abstract

In this study the spectral properties absorption of laser dyes (C480 & R610) mixture have been studied and has been dissolved in ethanol to prepare (1:1,1:21:3,1:4,1:5) ratio from [Rohdamin610(R610): Cumarin 480(C48)]at ( )concentration at room temperature. by added (18,27,36) mel from ethanol per ratio then study the change in the spectral properties of the mixture at each addition. Found that there was a significant increase in the spectral  line width  by increased  the amount of added ethanol and there is red shift increase with Increasing the amount of ethanol added and Decreased in the intensity.Keywords: Dye laser, Dilution. Absorption spectrum.
Absorption Resonance Energy Transfer between Organic Dyes (Cumarin and Rohdamain ) Wajeha Abdle Diam
Journal of Global Pharma Technology Volume 11 Issue 07
Publisher : Journal of Global Pharma Technology

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Abstract

The spectral properties absorption of two laser dyes types, C480 and R610, the mixture was investigated. These types  of laser dyes  belong to Coumarinoids  and  Xanthenes  family were dissolved  using  ethanol  as solvent to prepare samples with range of ratios (1:1,  1:2,  1:3 and 1:4)  from  Cumarin  480 (C48) to Rohdamin 610 (R610) concentered in (10-410-5,10-6) M/L at room temperature. The achieved results pointed out an increase in the absorption intensities with the increasing of the concentration of the day type R610 from 10-6 and 10-5 to 10-4   M/L.the same thing for C480which are absorved in agreement with Beer-Lambert law and the finished results Pointed that  the absorption peak was moved toward the short wavelengths (BLUE SHIFT) when increasing the ratioconcentration.  Keywords: Dye laser, Fluorescence resonance energy transfer, Silica gel matrices. Absorption spectrum.
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