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- [23] PHOTOMETRIC DETERMINATION OF PHOSPHORUS BY FORMATION OF MOLYBDOPHOSPHATE IN MIXED SOLUTIONS ZHURNAL ANALITICHESKOI KHIMII, 1970, 25 (04): : 765 - +
- [24] PHOTOMETRIC DETERMINATION OF TRACE AMOUNTS OF PHOSPHORUS IN METALLIC IRON INDUSTRIAL LABORATORY, 1971, 37 (12): : 1835 - &
- [25] RAPID PHOTOMETRIC DETERMINATION OF IRON AND COPPER IN RED PHOSPHORUS INDUSTRIAL AND ENGINEERING CHEMISTRY-ANALYTICAL EDITION, 1946, 18 (09): : 554 - 556
- [26] PHOTOMETRIC METHOD FOR DIRECT DETERMINATION OF AVAILABLE PHOSPHORUS IN FERTILIZERS JOURNAL OF THE ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS, 1961, 44 (02): : 233 - +
- [27] PHOTOMETRIC DETERMINATION OF TOTAL PHOSPHORUS IN FEEDING STUFFS AND FERTILIZERS JOURNAL OF THE ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS, 1955, 38 (04): : 898 - 903
- [28] COLORIMETRIC DETERMINATION OF PHOSPHORUS IN STEEL ANALYTICAL CHEMISTRY, 1951, 23 (10) : 1496 - 1497
- [30] PHOTOMETRIC DETERMINATION OF CERIUM IN STEEL (EXCHANGE OF EXPERIENCE) INDUSTRIAL LABORATORY, 1966, 32 (07): : 987 - &