... normal propyl acetate 正丙酯 normal butyl acetate 正丁酯 isobutyl acetate 异丁酯 ...
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ELECTRONIC GRADE NORMAL BUTYL ACETATE 电子级醋酸正丁酯
·2,447,543篇论文数据，部分数据来源于NoteExpress
After ethanol precipitation, OPC was separated by ethyl acetate-ligroin system. Content of OPC was determined by normal butyl alcohol-hydrochloric acid method at 546 nm to be over 90%.
提取物经醇沉后，用石油醚沉淀法分离低聚原花青素，产物经正丁醇-盐酸法显色，比色法测定质量含量可达90%以上。
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