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- [12] CEROMETRIC DETERMINATION OF L-ASCORBIC-ACID IN PHARMACEUTICALS ACTA POLONIAE PHARMACEUTICA, 1975, 32 (04): : 477 - 480
- [15] A HPLC METHOD FOR THE DETERMINATION OF L-ASCORBIC-ACID IN BEERS FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE, 1986, 323 (05): : 496 - 497
- [16] DETERMINATION OF ASCORBIC-ACID BY SPECTROPHOTOMETRIC METHOD BASED ON DIFFERENCE SPECTRA .2. SPECTROPHOTOMETRIC DETERMINATION BASED ON DIFFERENCE SPECTRA OF L-ASCORBIC-ACID IN PLANT AND ANIMAL FOODS AGRICULTURAL AND BIOLOGICAL CHEMISTRY, 1982, 46 (12): : 2953 - 2959