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- [46] DETERMINATION OF TRACES OF ANTIMONY COPPER AND LEAD IN TITANIUM DIOXIDE BY PULSE POLAROGRAPHY ZEITSCHRIFT FUR ANALYTISCHE CHEMIE FRESENIUS, 1967, 224 (01): : 310 - &
- [48] DETERMINATION OF ZINC IN TITANIUM DIOXIDE BY POTENTIOMETRIC TITRATION AND CATHODE-RAY POLAROGRAPHY ZEITSCHRIFT FUR ANALYTISCHE CHEMIE FRESENIUS, 1969, 246 (06): : 358 - &