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- [22] DIRECT ELECTROMETRIC DETERMINATION OF FLUORIDE ION ZEITSCHRIFT FUR ANALYTISCHE CHEMIE FRESENIUS, 1968, 235 (04): : 322 - &
- [28] CONTRIBUTION TO DIRECT POTENTIOMETRIC DETERMINATION OF FLUORIDE BY MEANS OF ION-SELECTIVE ELECTRODES PHARMACEUTICA ACTA HELVETIAE, 1974, 49 (7-8): : 270 - 273