SPECTROPHOTOMETRIC DETERMINATION OF COBALT WITH 2-NITROSO-1-NAPHTHOL-4-SULFONIC ACID

[1] The extraction of ferric chloride from hydrochloric acid solutions by isopropyl ether [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1936, 58 : 2573 - 2577

[2] Hoffmann O., 1885, BER DTSCH CHEM GES, V18, P46, DOI [10.1002/cber.18850180109, DOI 10.1002/CBER.18850180109]

[3] McNAUGHT K. J., 1939, ANALYST, V64, P23, DOI 10.1039/an9396400023

[4] MCPHERSON HT, 1938, BIOCHEM J, V32, P763

[5] Detection of cobalt, copper, and ferrous iron with 2-nitroso-i-naphthol-4-sulfonic acid [J]. INDUSTRIAL AND ENGINEERING CHEMISTRY-ANALYTICAL EDITION, 1938, 10 : 0378 - 0378

[6] WELCHER FJ, 1947, ORGANIC ANALYTICAL R, V3, P332

[7] WELCHER FJ, 1947, ORGANIC ANALYTICAL R, V3, P182

[8] WITT, 1891, BER, V24, P3160

[1] The extraction of ferric chloride from hydrochloric acid solutions by isopropyl ether [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1936, 58 : 2573 - 2577

[2] Hoffmann O., 1885, BER DTSCH CHEM GES, V18, P46, DOI [10.1002/cber.18850180109, DOI 10.1002/CBER.18850180109]

[3] McNAUGHT K. J., 1939, ANALYST, V64, P23, DOI 10.1039/an9396400023

[4] MCPHERSON HT, 1938, BIOCHEM J, V32, P763

[5] Detection of cobalt, copper, and ferrous iron with 2-nitroso-i-naphthol-4-sulfonic acid [J]. INDUSTRIAL AND ENGINEERING CHEMISTRY-ANALYTICAL EDITION, 1938, 10 : 0378 - 0378

[6] WELCHER FJ, 1947, ORGANIC ANALYTICAL R, V3, P332

[7] WELCHER FJ, 1947, ORGANIC ANALYTICAL R, V3, P182

[8] WITT, 1891, BER, V24, P3160