| 摘要 |
Analytical kit for the determination of the operating any titratable acidity and yeast assimilable nitrogen in musts and wines vines consists of a solution of the composition: sodium hydroxide solution with a concentration of 0.1 mol / l and 5 pg phenyl phthalate, and composition of solution B: 34 to 36% formaldehyde solution and 5 pg phenolphthalein. |
