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- [22] PHOTOMETRIC-DETERMINATION OF MAGNESIUM IN STEELS BY THE 2-(4'-PHENYLAZO)CHROMOTROPIC ACID REAGENT JOURNAL OF ANALYTICAL CHEMISTRY OF THE USSR, 1984, 39 (08): : 1122 - 1126
- [23] DIFFERENTIAL PHOTOMETRIC METHOD FOR DETERMINATION OF TANTALUM IN CONCENTRATES INDUSTRIAL LABORATORY, 1970, 36 (03): : 364 - &
- [24] PHOTOMETRIC-DETERMINATION OF TANTALUM IN THE PRESENCE OF NIOBIUM JOURNAL OF ANALYTICAL CHEMISTRY OF THE USSR, 1983, 38 (08): : 1100 - 1104
- [25] OPTIMUM CONDITIONS OF PHOTOMETRIC DETERMINATION OF SULFUR-DIOXIDE WITH FUCHSIN-FORMALDEHYDE REAGENT ZHURNAL ANALITICHESKOI KHIMII, 1974, 29 (02): : 389 - 391
- [26] EXTRACTIONAL PHOTOMETRIC DETERMINATION OF TUNGSTEN IN STEELS CHEMICKE LISTY, 1977, 71 (01): : 81 - 88
- [27] ON PHOTOMETRIC DETERMINATION OF CERIUM IN ALLOY STEELS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE FRESENIUS, 1970, 251 (01): : 11 - +
- [28] PHOTOMETRIC METHOD FOR THE DETERMINATION OF VANADIUM IN STEELS INDUSTRIAL LABORATORY, 1959, 25 (04): : 424 - 425
- [29] QUINALIZARINCOMPLEXON - NEW REAGENT FOR PHOTOMETRIC DETERMINATION OF FLUORINE JOURNAL OF ANALYTICAL CHEMISTRY OF THE USSR, 1975, 30 (11): : 1845 - 1848
- [30] NEW SPECIFIC REAGENT FOR PHOTOMETRIC DETERMINATION OF COPPER JOURNAL OF ANALYTICAL CHEMISTRY OF THE USSR, 1976, 31 (10): : 1495 - 1496