the root and flowers of butea monosperma (lam.) were extracted with methanol. extensive chromatographic separation and purification with the organic solvents was done. four phytochemicals were separated and their structures were established based on various spectroscopic techniques. isolated crude extract was subjected for antibacterial activity against gram-negative and gram-positive bacteria ...

4-chloromethyl styrene (cms) was copolymerized with different monomers such as methyl methacrylate (mma), methyl acrylate (ma), 2-ethylhexyl acrylate (eha) by free radical polymerization method at 70 ±1°c using a,a'-azobis(isobutyronitrile) (aibn) as an initiator. the copolymer compositions were obtained using related 1hnmr spectra and the polydispersity of the copolymers were determined using ...

Cheese and milk are stapled dairy products consumed globally. However, adulterants in these pose significant health risks compromise their quality. Analytical techniques crucial detecting quantifying to combat adulteration. This opinion explores the problem of cheese adulteration, highlights role spectroscopic (fluorescence spectroscopy, nuclear magnetic resonance (NMR) infrared (IR) spectrosco...

he electrochemical control of oxidation and reduction processes in organic and inorganic systems is an area of extensive research in both academia and industry. Electrochemical techniques are extremely useful in generating interesting species in unusual oxidation states, or for producing reactive intermediates (as, for example in the reductive dimerization of vinyl cyanide in the Monsanto manuf...

the dimerization constants of safranine t have been determined by studying the dependence of its absorption spectra on the temperature in the range 30–70 ◦c at different total concentrations of safranine t (1.03×10−5, 1.44×10−5 and 1.73×10−5 m). the monomer–dimer equilibrium of safranine t has been determined by applying mcr-als method on the absorption spectra. the quantitative analysis of the...

Spectroscopic and microscopic techniques are complementary to electrochemical studies because data consists of current, voltage time, has no direct information concerning the chemical structure active species. Hence in situ/operando spectroscopy microscopy become powerful tools for identification electrochemically species during reactions. The present comprehensive paper provides fundamental th...