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- [2] SPECTROPHOTOMETRIC DETERMINATION OF THORIUM(IV) AND FLUORIDE WITH 2-CARBOXY-2'-HYDROXY-3',5'-DIMETHYLAZOBENZENE-4-SULPHONIC ACID CHEMIA ANALITYCZNA, 1981, 26 (02): : 313 - 317
- [4] PROTON-LIGAND CONSTANTS OF 2-CARBOXY-2'-HYDROXY-3',5'-DIMETHYLAZOBENZENE-4-SULPHONIC AND 2-CARBOXY-2'-HYDROXY-3',5'-DICHLOROAZOBENZENE-4-SULPHONIC ACIDS AND STABILITY-CONSTANTS OF THEIR CHELATES WITH FE(III) INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY, 1976, 14 (07): : 541 - 542
- [7] Spectrophotometric Determination of Mn (II) with 1 - (Phenyl) - 3 - Methyl - 4 - Azo -(2'-Carboxy - 4' - Sulphonic acid) - 5 - Pyrazolone Journal of the Institution of Chemists (India), 69 (04):
- [8] CHELATES OF NI(II) AND CU(II) WITH 6-CARBOXY-6'-HYDROXY-3',5'-DIMETHYLAZO-BENZENE-4-SULPHONIC ACID INDIAN JOURNAL OF CHEMISTRY, 1975, 13 (08): : 848 - 849