Column chromatographic preconcentration of cobalt in aluminum alloys and steels with 2-nitroso-1-naphthol-4-sulfonic acid-tetradecyldimethylbenzylammonium ion pair supported on naphthalene

Simultaneous Determination of Cadmium an

Simultaneous Determination of Cadmium and Lead in Real and Environmental Samples by Differential Pulse Polarography after Adsorption of Their 2-Nitroso-1-naphthol-4-sulfonic acid–Tetradecyldimethylbenzylammonium Ion-Associated Complex on Microcrystalline Naphthalene

✍ Mohammad Ali Taher; Bal Krishan Puri; R.K. Bansal 📂 Article 📅 1998 🏛 Elsevier Science 🌐 English ⚖ 101 KB

Cadmium and lead form 2-nitroso-1-naphthol-4-sulfonic acid-tetradecyldimethylbenzylammonium ion-associated complexes which are quantitatively adsorbed on microcrystalline naphthalene in the pH ranges 5.7-11.0 and 8.0-10.5, respectively. After filtration, the solid mass is shaken with 10 ml of 1 M hy