The macroscopic characters of the whole plant, physical constant values, extractive values, behavior on treatment with different chemical reagents, fluorescence characters under ultra violet light after treatment with different reagents of the powered entire plant of Cleome viscose Linn.(Capparidaceae) were studied to fix some pharmacognostical parameters. Preliminary phytochemical screening on...

Chemical modification is an important approach to the study of enzyme active sites. This article presents an overview of the methods used. The basic concepts, applications and limitations of chemical modification are outlined. The use of reagents specific for different amino acid side chains is also discussed.

The article presents one of the new approaches to theoretical assessment collecting ability reagents. efficiency reagents-collectors with different chemical composition used for flotation coking coals was studied. A comparative activity kerosene, mineral oil, thermal gas KETGOL and FLOTEK is given. criteria above coal sludge were specified. correlation established between indicators by reagents...

It is now generally agreed that papain possesses a single reactive sulfhydryl group which is essential for activity and which probably participates in the catalytic mechanism by forming acyl intermediates with the different substrates (2, 3). Smith (4) has claimed that the essential sulfhydryl group of papain is kinetically more active than most protein sulfhydryl groups and that it possesses d...

A method is described for the elucidation of protein-protein interactions using novel cross-linking reagents and mass spectrometry. The method incorporates (1) a modular solid-phase synthetic strategy for generating the cross-linking reagents, (2) enrichment and digestion of cross-linked proteins using microconcentrators, (3) mass spectrometric analysis of cross-linked peptides, and (4) compreh...

This study investigates the effect of mixing intensity and reagents addition strategy on Fenton's reagent degrading a common reactive diazo type dyestuff, Reactive Black 5. Within the experimental conditions used in the study, the effect of mixing intensity on TOC removal was observed to be both significant and complex. Using factorial analysis, it was found that if the reagents are added near ...

the purpose of this investigation was to develop a simple colorimetric method for creatine kinase (ck). the new method is based on the reaction of creatine, formed enzymatically from creatine phosphate and adp, with different glyoxal compounds. hydrated glyoxals, such as para-nitrophenyl, 2-thiophene, 4- biphenyl, 4, 4' -biphenyl,α-naphthyl, β-naphthyl, para-chlorophenyl, and styryl were s...