| 释义 |
ligroin
英音 [ ˈlɪɡrəʊɪn ]
美音 [ ˈlɪɡroʊɪn ]
释义
n. 轻石油，石油英；里格罗因
例句
1·Limonene needed in recycling foamed polystyrene was extracted from the ear of schizonepeta tenuifolia using ligroin .
本文研究从荆芥穗中提取回收聚苯乙烯所需的柠檬烯，其方法是溶剂萃取。
2·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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