نتایج جستجو برای: methyleneblue degradation

تعداد نتایج: 150936  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1392

a novel acrylic acid-functionalized fe3o4 magnetic nanoparticle with a core-shell structure was developed for utilization as a heterogeneous organosuperacid in chemical transformations. the structural, surface, and magnetic characteristics of the nanosized catalyst were investigated by various techniques such as transmission electron microscopy (tem), thermogravimetric analysis (tga), and ft-ir...

Journal: :American Journal of Environmental Sciences 2022

In this report, the silver Nanoparticles (AgNPs)were successfully synthesized in a simple one-pot method by leaf and stemextract of Disporopsis longifolia as reducing, capping agents, andstabilizers for first time. The optimal extract amount, AgNO3concentration, reaction temperature, time AgNPs synthesis wereidentified using Ultraviolet-Visible (UV-Vis) spectroscopy. X-Ray Diffraction (XRD)and ...

Journal: :Nucleic Acids Research 2006
Murray P. Deutscher

Degradation of RNA plays a central role in RNA metabolism. In recent years, our knowledge of the mechanisms of RNA degradation has increased considerably with discovery of the participating RNases and analysis of mutants affected in the various degradative pathways. Among these processes, mRNA decay and stable RNA degradation generally have been considered distinct, and also separate from RNA m...

Journal: :JDFSL 2012
Kevin D. Fairbanks Simson L. Garfinkel

Journal: :polyolefins journal 0
nikoo karami department of polymer engineering, south tehran branch, islamic azad university, tehran, iran reza jahanmardi department of polymer engineering, science and research branch, islamic azad university, tehran, iran

the present work is aimed to find a new and efficient type of antioxidants for polypropylene. hence, effects of 3,3-bis(4-hydroxy-2-methyl-5-propan-2-ylphenyl)-2-benzofuran-1-one, generally known as thymolphthalein, on thermo-oxidative stability of polypropylene in solid and melt states were evaluated and compared with those of songnox 1010, an efficient commercially used antioxidant for the po...

Journal: :journal of physical & theoretical chemistry 2008
a. mohammad dehqan m. reza shishehbore n. nasirizadeh

the present work reports a kinetic spectrophotometric method for the determination of traceamounts of sulphite that is based on inhibitory effect of sulphite on the oxidation of methyleneblue (mb) in acidic media. the reaction is followed spectrophotometrically by monitoring thedecrease in absorbance of mb at 664 nm with a fixed time of 0.5-4.5 minutes. it was found thatsulphite exert a strong ...

A. Mohammad Dehqan M. Reza Shishehbore N. Nasirizadeh

The present work reports a kinetic spectrophotometric method for the determination of traceamounts of sulphite that is based on inhibitory effect of sulphite on the oxidation of Methyleneblue (MB) in acidic media. The reaction is followed spectrophotometrically by monitoring thedecrease in absorbance of MB at 664 nm with a fixed time of 0.5-4.5 minutes. It was found thatsulphite exert a strong ...

Journal: :Cell systems 2016
Junyue Cao Jonathan Packer Robert Waterston

This month: protein-complex dynamics (Tan), how noise promotes cell survival (Goulian), multiplex cell-surface-protein detection (Wells), single-cell sequencing (Klein/Socolovsky, Ye), social networks of honeybees (Robinson), new synthetic devices (Liu, Cai), and controlling segmentation clock dynamics (Aulehla).

Journal: :international journal of environmental research 0

nano-cus powders were synthesized with chemical solution method. xrd and sem and spectrophotometry were used for characterization of the cus powders. xrd analysis indicated that tetragonal cus was the main phase with particle size of 16.2nm and little cu2s phase was present. scanning electron microscopy (sem) analysis revealed that powder was plate like and had very little aspect ratio in morph...

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