Showing papers on "Brilliant green published in 1996"
TL;DR: Various disinfecting drugs (ethacridine lactate, methylene blue, gentian violet, brilliant green, fuchsin acid, cetylpyridinium chloride) were incorporated into CD bead polymers substituted with carboxymethyl groups and a retarded release rate was measured as mentioned in this paper.
Abstract: Various disinfecting drugs (ethacridine lactate, methylene blue, gentian violet, brilliant green, fuchsin acid, cetylpyridinium chloride) were incorporated into CD bead polymers substituted with carboxymethyl groups and a retarded release rate was measured. These polymers were successfully used as sustained release wound powders as well as in chewing gum formulations.
24 citations
TL;DR: A new extraction-spectrophotometric method for the determination of indium at ppb level in zinc effluent is described, based on quantitative extraction of tetrabromoindate complex with toluene solution of N,N′-diphenylbenzamidine and its nine analogous from sulphuric acid solutions, which allowed the extract to react with basic dye in sequence.
Abstract: A new extraction-spectrophotometric method for the determination of indium at ppb level in zinc effluent is described. It is based on quantitative extraction (51.2–99.2%) of the tetrabromoindate complex with toluene solution of N,N′-diphenylbenzamidine and its nine analogous from sulphuric acid solutions, which allowed the extract to react with basic dye (i.e. brilliant green, malachite green, crystal violet) solution in sequence. Among the basic dyes tested, brilliant green gave the most sensitive colour reaction. The value of molar absorptivity of the amidine bromoindate extracts with brilliant green lie in the range of (0.53–1.03)×105 l mole-1 cm-1 at absorption maximum, 630–640. With the most sensitive compound, N-(2-methyl-phenyl)-N-phenylbenzamidine(APPBA), the detection limit of the method is 13 ppb. The method is free from interferences of almost all ions associated with indium. The method has been applied for the determination of indium to zinc-effluent.
3 citations