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- [3] COLORIMETRIC DETERMINATION OF IRON(II) WITH 2-NITROSO-1-NAPHTHOL-4-SULFONIC ACID NIPPON KAGAKU ZASSHI, 1961, 82 (07): : 869 - &
- [4] COLORIMETRIC DETERMINATION OF COBALT WITH 2-NITROSO-1-NAPHTHOL-4-SULFONIC ACID BY EXTRACTION METHOD NIPPON KAGAKU ZASSHI, 1961, 82 (08): : 1064 - &
- [7] REACTIONS OF 2-NITROSO-1-NAPHTHOL-4-SULFONIC ACID WITH NITRATE IN AQUEOUS PERCHLORIC ACID - ANAL ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1970, (SEP): : 69 - &