These showed that the mainly inhibiting substance of R9G were in acetyl acetate phase.
这说明R9G发酵产物中对植物病原真菌的抑制物质主要集中在乙酸乙酯相中;
Aloin is unstable when dissolved in methanol, acetyl acetate was appropriate for use as the solvent in standard solution.
芦荟苷在甲醇溶剂中不稳定,甲醇不适宜做芦荟苷标准样的溶剂,宜改用乙酸乙酯。
Soluble lead sulfide can be extracted from the residue by 10% hydrogen peroxide, 15% ammonium acetate and 5% acetyl hydrate.
用10%过氧化氢—5%醋酸—15%醋酸铵浸取上述残渣,可浸取溶解硫化态铅;
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