Ammonium bromide, cetyltrimethyl complexes

Yan and associates developed a method for the analysis of iron based on its formation of a fluorescent metal-ligand complex with the ligand 5-(4-methylphenylazo)-8-aminoquinoline. In the presence of the surfactant cetyltrimethyl ammonium bromide the analysis is carried out... 

An enantioselective oxidation of 3,4-dihydroxy-L-phenylalanine catalyzed by an W-lauxoyl-L- or -D-histidine-Cu(II) complex in the presence of cetyltrimethyl-ammonium bromide as cosurfactant was described by Yamada et al. [54]. 

Benzidine, cetylpyridinium chloride (C.P.C.), cetyltrimethyl ammonium bromide (cetavlon) and other long chain amines form insoluble complexes with heparinoids and are universally used as precipitating agents for heparinoids. The solubility characteristics in salt solutions have been established by Scott . Brucine and choline also give crystalline complexes with heparin in the presence of aqueous alcohol and acetone. The choline complex shows no loss of cholinergic activity, indicating complete dissociation in solution. 

Another group of complexing agents, especially useful for charged polysaccharides, are such quarternary ammonium salts as cetyltrimethyl-ammonium bromide or cetylpyridinium bromide. Scott has summarized the work in this field. Acidic polysaccharides form insoluble complexes... 

Chen W, Chen HR, Hu JH, Yang WL, Wang CC (2006) Synthesis and characterizatirai of polyion complex micelles between polyfethyloie glycol)-grafled poly(aspartic acid) and cetyltrimethyl ammonium bromide. Colloids Surf A Physicochtan Eng Asp 278 60-66... 

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