1. Complex of zinc with 4-(2-pyridylazo)resorcinol and cetylpyridinium;Tananaiko;Ukr. Khim. Zh. (Russ. Ed),1982
2. Study of the formation of 2,2-dihydroxyazobenzene complexes of nickel(II) cadmium(II) and zinc(II) in the presence of zephiramine and of their extraction with MIBK [methyl isobutyl ketone] by atomic absorption spectrometry and absorption spectrophotometry;Kikuchi;Niihama Kogyo Koto Senmon Gakko Kiyo, Rikogaku-hen,1984
3. Mixed-ligand complex of zinc trihydroxyfluoronate with cetylpyridinium;Rubel;Ukr. Khim. Zh. (Russ. Ed.),1981
4. Spectrophotometric studies on the chelates of zinc, cadmium and mercury with bromopyrogallol red in presence of cetyltrimethylammonium bromide;Prakash;Indian J. Chem., Sect. A,1979
5. Comparative study on color reaction of bivalent transition metal ions with bromopyrogallol red in the presence of surfactants;Xu;Fenxi Huaxue,1985