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- [6] AUTOMATIC METHOD FOR THE DETERMINATION OF ORTHO-PHOSPHATE AND TOTAL DISSOLVED PHOSPHORUS IN THE MARINE-ENVIRONMENT FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE, 1987, 326 (04): : 354 - 357
- [7] ATOMIC-ABSORPTION SPECTROPHOTOMETRIC DETERMINATION OF TOTAL PHOSPHORUS AND ORTHO-PHOSPHATE IN WATER AND ITS APPLICATION TO UNDERGROUND WATER EISEI KAGAKU-JAPANESE JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH, 1986, 32 (01): : 39 - 45