پاورپوینت کروماتوگرافی

دانلود پاورپوینت با موضوع پاورپوینت کروماتوگرافی دارای 181 اسلاید و با فرمت .ppt و قابل ویرایش و آماده برای ارائه ، چاپ ، تحقیق و کنفرانس می باشد.

 

تعداد اسلاید : 181 اسلاید
فرمت فایل: پاورپوینت .ppt و قابل ویرایش
آماده برای : ارائه ، چاپ ، تحقیق و کنفرانس

قسمتی از متن نمونه:

کروماتوگرافی مرا جع: 1-Principles of Instrumental Analysis D.A.Skoog2- Instrumental Analysis C.D.Chiristian and J.G.Oeilly 3- Physical and chemical methods of separation Berg  2 واحد درسی( کارشناسی ارشد) مدرس : دکتر نژاد علی  Introduction Plant Pigments Chlorophylls Xanthophylls Martin & synge(1952 Nobel Prize) A general description chromatography Stationary phase Mobile phase Classification of chromatography Column chromatography Planer chromatography Linear chromatography Partition coefficient K = Cs/Cm Cs , is molar analytical Cm , solute concentration in the mobile phase Elution chromatography on columns Elution is defined as a process whereby a solute is washed through a column by additions of fresh solvent. Retention time (tR) Qualitative & Quantitative Chromatography Chromatograms If a detector that responds to solute concentration is placed at the end of the column & its signal is plotted as function of time (or of volume of the added mobile phase), a series of peaks is obtained, such a plot , called a chromatogram. Theories of elution chromatography The effects of migration rates & zone broadening on resolution Plate theory Kinetic theory L=NH N=L/H Retention time V=L/tR U=L/tM Where , V , u & tM are average Linear rate of solute migration , average Linear rate of movement of the molecules of the mobile phase & dead time The definition of plate height H=2/L N=L2/2 Where H, is the Plate height , L , is the column length & 2 is the variance of measurements Experimental Evaluation of N & H ....