In the present book some simple and sensitive spectrophotometric methods for determination of drugs in pharmaceutical formulations and in biological samples have been described. The methods are based on the use of chromogenic reagents, redox reactions, solvent extraction and solid phase extraction techniques. The methods for validation of developed methods have also been described. The drugs for which methods have been described are α-methyldopa, sulphonamide derivatives, lamivudine, nimesulide, nicorandil, olanzapine, and phenothiazine derivatives.

Present work shows Thermoluminescence and Mechanoluminescence characteristics of II-VI semiconductors. Evaluation of kinetic parameters and different models for thermoluminescence as well as mechanoluminescence studies. Modeling of the rise and decay of elastico mechanoluminescence of II-VI semiconductors has been done. The plots obtained from the modeling are similar to that obtained from EML measurements.