Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Melda Tunçay"'
Publikováno v:
Spectroscopy Letters. 39:357-372
The interaction of the cationic drug rivanol (RIV) with three types of surfactants; [cationic (cetyltrimethylammonium bromide; CTAB), anionic (sodium dodecylsulfate; SDS), and nonionic (t‐octylphenoxypolyethoxyethanol, TX‐100)] has been studied s
Autor:
Melda Tunçay, Betül Arikan
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. 273:202-207
The effect of an anionic surfactant, sodium dodecyl sulfate (SDS) from sub-micellar to post-micellar concentrations on the kinetics of reduction reaction of a cationic dye, toluidine blue by ascorbic acid was studied in the absence and presence of 0.
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. :72-77
The alkaline fading reaction of crystal violet (CV) in anionic micelles of sodium dodecyl sulfate (SDS) in the presence of various amounts of cosolvents, ethanol, propanol, ethylene glycol and propylene glycol, was studied under pseudo-first-order co
Autor:
Betül Arikan, Melda Tunçay
Publikováno v:
Dyes and Pigments. 64:1-8
The kinetics of the reduction of toluidine blue by ascorbic acid was studied both in the absence and presence of hydrochloric acid as a function of cetyltrimethylammonium bromide concentration. The pseudo-first order rate constant was calculated from
Publikováno v:
Canadian Journal of Chemistry. 77:1208-1213
β-Cyclodextrin (β-CD) is a cyclic oligosaccaride with an apolar cavity that shows a certain degree of selectivity in binding organic and inorganic compounds. Lauryl sulfobetaine (LSB) and dodecyltrimethylammonium bromide (DTAB), having the same hyd
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. 149:279-284
The kinetics of the reaction between colloidal manganese dioxide (obtained by reduction of potassium permanganate with sodium thiosulfate) and formic acid at 25°C and constant ionic strength in aqueous perchloric acid solution were studied in the pr
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. 143:27-33
The adsorption behaviour of safranine-O on specially prepared hydrophilic and hydrophobic surfaces of glass powder was studied at various temperatures (25–55°C). It was seen that the hydrophobic surfaces adsorbed more safranine-O than hydrophilic
Publikováno v:
Analytica Chimica Acta. 335:155-167
The literature catalytic-spectrophotometric method of selenium (Se) determination based on the catalytic action of Se(IV) on the sulfide reduction of methylene blue has been critically analyzed by means of “fixed absorbance, fixed time and decolori
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. 113:61-66
The surface activity of a homologous series of non-ionic surfactants having 12–16 carbon atoms in the alkyl chain and different lengths of the polyoxyethylene (POE) group was studied by a direct current polarographic method. Polarographic micelle p
Publikováno v:
Journal of Solution Chemistry. 24:1059-1073
The decomposition of ammonium nitrite in water creates a supersaturated solution of nitrogen. The same process occurs in water-organic solvent mixtures. Acetone, dioxane, dimethylsulfoxide (DMSO) and dimethylformamide (DMF) are the cosolvents used in