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- [25] DETERMINATION OF VITAMIN-B12 IN MULTIVITAMIN MULTIMINERAL TABLETS BY HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY AFTER SOLID-PHASE EXTRACTION JOURNAL OF CHROMATOGRAPHY, 1991, 541 (1-2): : 383 - 392
- [26] SEPARATION OF VITAMIN-A AND RETINYL ESTERS BY REVERSED-PHASE HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY JOURNAL OF CHROMATOGRAPHY, 1984, 294 (JUN): : 466 - 470
- [27] AUTOMATION OF A COMPLEX HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY SYSTEM - PROCEDURES AND HARDWARE FOR A VITAMIN-B6 MODEL SYSTEM JOURNAL OF CHROMATOGRAPHY, 1981, 216 (OCT): : 338 - 345
- [29] DETERMINATION OF VITAMIN-D2 AND VITAMIN-D3 IN FEEDINGSTUFFS BY HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY JOURNAL OF LIQUID CHROMATOGRAPHY, 1988, 11 (04): : 953 - 969
- [30] ANALYSIS OF VITAMIN-B6 VITAMERS IN HUMAN-TISSUE BY CATION-EXCHANGE HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY JOURNAL OF CHROMATOGRAPHY-BIOMEDICAL APPLICATIONS, 1989, 491 (01): : 226 - 234