هرمون الانتي مولرين كدالة لمتلازمة تكيس المبايض في امصال النساء العراقيات == Serum Anti - Mullerian Hormone As A Marker of Polycystic Ovary Syndrome In Iraqi Women
Author name:
شهد فوزي عبيد عبد الواحد الخفاجي
Supervisor name:
بشرى فارس حسن | غريد خليل محمد علي
General topic:
Chemistry
Specific topic:
Chemistry
Degree:
Master
University:
University of Baghdad - College Of Science For Girls
Language:
Arabic
University location:
Baghdad
First pages:
25T1442 - p.pdf
Abstract:
يتضمن البحث تنقية المحاليل المائية المخففة من الملوثات العضوية صبغة الرودامين وصبغة الكونغو الاحمر بطريقتين الطريقة الاولى كانت امتزاز هذه الصبغات على سطح البتونايت ضمن Al2O3، ZnO،TiO 005 ( جزء بالمليون استعلمت المركبات الثانوية 2 - مدى من التراكيز ) 05 ) | The present work deals with the purification of diluted aqueous solutions from organic pollutants Rhodamine B (RhB) and Congo red (CR) dyes with two methods. The first one was adsorption these dyes on bentonite in range (50 - 250)mgl - 1, Nanocompounds,TiO2, ZnO, Al2O3 and quaternary ammonium salts Hexadecyl tri methyl ammonium bromide (HDMAB), long chain hydrocarbon compounds Sodium dodecyl sulfate(SDS) in different amounts (0.01 - 0.1)g/10g of bentonite were used to modify the adsorption capacity to remove the RhB and CR dyes from aqueous solutions. Both bentonite and modified bentonite are firstly characterized using SEM, AFM and FTIR techniques.The effect of dyes concentration, contact time, effect of initial dye concentration and contact time, adsorbent dosage, and amount of modifiers on the percentage removal have been studied. The modified bentonite with SDS. TiO2 , ZnO increased the percentage removal(R%) of RhB dye from 80% by natural bentonite to 99.3%,98.9% and98.7% respectively, the other dye CR modified bentonite with HDMAB,TiO2 ,ZnO, increased the R% from 81.3% to 99.6%, 99.0% and 98.8%,while adding Al2O3 did not success to increase the R% of RhB and CR on bentonite surface The study exhibits that Langmuir and Freundlich models gave geed fitted to the experimental adsorption at 25°C.The second method deals with advanced oxidation process by using photo - Fenton catalyst(Fe2+,H2O2 and UV light) to degradates of two dyes RhB and CR, the effect of Fe2+ concentration,H2O2 concentration , initial dye concentration and effect of pH at different interval time have been studied.results indicated that simultaneous utilization of UV irradiation with Fentons reagent increase the degradation degree of RhB and CR dyes quickly lose their color, indicating that the dissolves organics have been oxidized, the maximum color removal were obtained at pH 2.0,250 mgl - 1of Fe2+,300 mgl - 1of H2O2for RhB at 240 minute while for CR maximum removal were at pH 3.0,200 mgl - 1of Fe+2,350 mgl - 1of H2O2 at 270 minute.The photo - Fenton degradation process was monitored by HPLC chromatogram of RhB and CR dye solutions. The intensity of the peaks are gradually decreased with irradiation time.The irradiation time after three hours show no HPLC peaks detected, the results are in a good agreement with the results obtained from the UV visible spectrum.In this study semi - empirical methods are used to calculate the molecular orbital energies. This calculation let to suggest the best surface active material which can be used to modify the adsorption efficiency for RhB and CR on Iraqi bentonite surface. The theoretical study results are compared to experimental results achieved in experimental studies on some organic pollutants and modified bentonite by SDS and HDMAB. Using SDS led to the best adsorption efficiency for RhB while HDMAB lead to best efficiency for CR dye. The enthalpy of formation, dipole moment and energy of molecular orbital HOMO and LUMO energies levels were calculated for the two dyes and the two modifiers.
