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所的,其方法是溶剂萃取。
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所的,其方法是溶剂萃取。
Moreover, those impurities, as menthone, isomenthone, limonene, 1, 8-cineol and bata-pinene contents of Hai-Xuan mint are lower than that of 73-8mint.
原油中薄荷酮、异薄荷酮、、1,8-桉叶素、β-蒎等均低于“73~8”。
Results showed that the main aromatic components of mango were terpenes viz, terpinolene, ocimene, α-pinene, beta-myrcene, alpha-thujene, limonene, caryophyllene, Carene, etc.
结果表明,芒果香气主要成分为萜类物质,如异松油、罗勒、α-蒎、β-月桂、α-侧柏、、石、等。
The oils were analyzed by GC-MS and percentages were obtained by normalized peak areas, where main components are nootkatone, D-limonene, osthole, cis-linaloloxide, furfural, and trans.
用气相色谱-质谱(GC-MS)联用技术分析,鉴定出主要成分为圆柚酮、D-、王草素、顺式-芳樟醇氧化物、糠醛、反式-芳樟醇氧化物。
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