In this research, a response surface methodology (RSM) was used to investigate the effects of independent parameters (pH, contact time, temperature, adsorbent dosage, and initial concentration of pollutant), their simultaneous interactions, and quadratic effects on crystal violet adsorption onto two starch based materials in the form of batch experiments. The characterizing results indicated th...

The title compound, C(20)H(15)BrO(3)S, was prepared by the oxidation of 7-bromo-2-methyl-1-(4-tolyl-sulfan-yl)naph-tho[2,1-b]furan with 3-chloro-peroxy-benzoic acid. The 4-tolyl ring makes a dihedral angle of 70.96 (6)° with the plane of the naphthofuran fragment. The crystal structure is stabilized by aromatic π-π stacking inter-actions, with centroid-centroid distances of 3.672 (3) and 3.858 ...

Dendrobium genus was reported to contain alkaloid, bibenzyl, fluorenone, phenanthrene, sesquiterpenoid, and phenolic acid, which have biological properties. Our aim was to investigate the protective effect of an aqueous extract of Dendrobium nobile Lindl (DNE) against cisplatin-induced acute kidney injury (AKI). Quantification of four phenolic acids (4-hydroxybenzoic, vanillic, syringic, and fe...

Copper (I) oxide microparticles with the morphology of cubic and hollow sphere were synthesized with the assistance of surfactant as the shape controller. Both particles were then subjected to study the catalytic activity and observed the results of shape effects of catalysts on rate of catalytic reaction. The decolorizing reaction of crystal violet and sodium hydroxide was chosen and measured ...

Two-component relativistic time-dependent density functional theory calculations with spin-orbit coupling predict yellow and orange-red absorption for BiPh5 and BiMe5, respectively, providing an excellent explanation for their respective violet and blue-violet colors. According to the calculations, the visible absorption is clearly attributable to a single transition from a ligand-based HOMO to...

Adsorption techniques are widely used to remove the pollutants from waters, especially those that are not easily biodegradable. The removal of crystal violet dye (CVD) from water was studied by using Amberlyst 15, a cation-exchange resin (CER), along with Ferrous (Fe 2+ ) and H2O2 . In this study the main factors that can influence the degradation of crystal violet dye are molar ratio of [(H2O2...

The development and evaluation of a new selective medium for Streptococcus pneumoniae is described. It is shown that the new medium (crystal violet-nalidixic acid-gentamicin agar:CVNG) is highly selective for Strep. pneumoniae in sputum specimens containing other organisms and is also sensitive, being only marginally inhibitory when compared to Columbia blood agar. The advantages of the medium ...

The present study focuses on the efficiency of high-performance thin layer chromatography and gas chromatography-mass spectrometry analysis in qualitative quantitative triterpenoid from terpene fraction hexane extract Simarouba glauca leaves. total terpenoid content was assessed which shows that 73.69 % is terpenoid. extracted petroleum ether leaves subjected to analysis. Gas results indicated ...

Trichromatic colorimetry was applied for the evaluation of the colour changes of the metallochromic indicators, viz., hematoxylin, gallocyanine, Gallamine Blue, Solochrome Prune AS, Celestine Blue, Eriochrome Black T, Xylenol Orange and Catechol Violet, in the complexometric titration of zirconium( IV) with ethylenediaminetetraacetic acid (EDTA) to measure the quality of colour change at the eq...