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Thiosemicarbazones are established as selective and sensitive
analytical reagents for transition metals. This book describes
literature survey and synthesis of some important
thiosemicarbazones.As 2-hydroxy-4-n-butoxy-5-bromopropiophenone
thiosemicarbazone (HBBrPT) is selective and strong chelating agent,
it was developed as new reagent for spectrophotometric
determination of micro quantities of cadmium. This extractive
technique is found to be very simple, rapid and accurate for the
determination of cadmium. The detailes of selection of pH,
wavelength and solvent for the present system is reported. Validity
of Beer's law, molar extinction coefficient, Sandell's sensitivity,
Effect of foreign ion, etc. were investigated.Job's method of
continuous variation, the mole ratio and the slope ratio methods
were studied. The stability constant and the free energy of the
cadmium-HBBrPT complex were evaluated. The book is designed in the
form of thesis work for Ph.D.degree so that reader can easily
understand the work done by the authors. This book is very much
useful for post graduate and research scholars to determine cadmium
spectophotometrically.
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