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- [8] ATOMIC-ABSORPTION SPECTROPHOTOMETRIC DETERMINATION OF MICRO-AMOUNTS OF CHROMIUM(VI) BY USING SOLVENT-EXTRACTION OF CHROMIUM(VI) WITH ZEPHIRAMINE JAPAN ANALYST, 1974, 23 (02): : 187 - 192
- [9] ATOMIC-ABSORPTION SPECTROPHOTOMETRIC DETERMINATION OF MICRO-AMOUNTS OF LEAD BY USING SOLVENT-EXTRACTION WITH POTASSIUM ETHYL XANTHATE-MIBK JAPAN ANALYST, 1973, 22 (12): : 1581 - 1585