نتایج جستجو برای: indophenol method
تعداد نتایج: 1630285 فیلتر نتایج به سال:
in the present work, a simple and sensitive method was developed for determination of morphine and heroin using gold nanoparticles as resonance rayleigh scattering (rrs) and colorimetric technique’s probe. synthesized gold nanoparticles by sodium citrate reduction method have a negative charge layer on their surfaces because of self-assembled citrate anions on their surface. binding of morphin...
abstract objectives gradual increase length and complexity of utterance (gilcu) therapy method is a form of operant conditioning. this type of treatment is very precise and controlled that is done in 54 steps in 3 speech situations consisted of monologue, reading and conversation. this study aimed to examine the effects of gilcu treatment method on reduction of speech dysfluency of school-age...
Flavin-dependent oxidoreductases are increasingly recognized as important biocatalysts for various industrial applications. In order to identify novel activities and to improve these enzymes in engineering approaches, suitable screening methods are necessary. We developed novel microtiter-plate-based assays for flavin-dependent oxidases and dehydrogenases using redox dyes as electron acceptors ...
Air segmented amplitude modulated multiplexed flow analysis (air segmented AMMFA) has been applied to the simultaneous determination of ammonium ions in water samples by an Indophenol Blue spectrophotometry. The flow rates of sample solutions to be merged are periodically varied at different frequencies. The merged solution, comprised of the sample solutions, coloring reagent solutions and wate...
! WALLNAUSSER~ has pointed out that TTC (2,3,5-triphenyl-2H-tetrazolium chloride) as well as other redox indicators such as z,6-dichlorophenol-indophenol can be, successfully employed either as visualizing sprays or as additions to the assay media. Although the use of tetrazolium salts in bioautography is not novel, our experience leads us to believe that their use as visualizing systems in bio...
tion dye, namely, 2-6-dibromo phenol indophenol.1 This penetrates the sap in a reduced or colorless form and is oxidized to a blue form when the sap is exposed to the air. This is a preliminary report. Details will be published subsequently. Grateful acknowledgment is hereby made to the Bac FUND of the NATIONAL ACADIMY oF SCIUNCUS for a grant which enabled the writer to carry on this work, and ...
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