A thin layer chromatographic method is developed for the detection of nitrobenzene in biological material. Nitrobenzene on reduction gives aniline, a primary amine which on diazotization and coupling with β- naphthol, gives orange coloure µ spot (i.e. aniline dye). The detection limit for nitrobenzene on TLC plate in biological material is 5µg. The biological impurities such as amino acids, fats etc. present in visceral material do not interferes in the test. The methods has been successfully employed for the detection in forensic samples.

A series of 1,1-bis [2-hydroxy-3-(5’-aryl-isoxazoline-3-yl)-5-methyl phenyl] methane and 1,1-bis [2-hydroxy-3-(5’-aryl-isoxazol-3-yl)-5-methyl phenyl] methane derivatives were evaluated for their antimicrobial activity against some selected pathogenic micro-organisms such as Gram-positive bacteria, Staphylococcus aureus, Citrobacter frundii, Bacillus megatherium and Gram-negative bacteria Staphyloccus aureus, Escherichia coli, Proteus mirabilis, Pseudomonas aeruginosa, Enterobacter aerogenes, Salmonella typhi, Proteus vulgaris.

Ultrasonic velocity and density measurements had been carried out for solution of 1-(4-hydroxy-6-methyl pyrimidino)-3-methyl thiocarbamides (HMPMT) in 70% dioxane-water at 3020 K and frequency 1 MHz This data have been used to determine various acoustic/thermodynamic parameters viz. adiabatic compressibility, apparent molar compressibility, apparent molar volume, intermolecular free length, relative association and specific acoustic impedance. These properties are used to interpret weak molecular solute-solvent, solute-solute interactions in the system.