The unsaponifiable matters of the oil from Xanthoceras sorbifolia Bge. are separated by TLC with silica gel G into four fractions:sterols, triterpene alcohols, 4-methyl sterols and hydrocarbons.
本文对文冠果仁油非皂化物中三萜醇部分和4-甲基甾醇部分进行一系列的分离和鉴定。
F-AMT ( 18 F-á-methyl-tyrosine)is a newly developed positron tumor positive imagin g agent.
甲基酪氨酸）是新研制的一种正电子肿瘤阳性显像剂。
F-AMT ( 18 F-á-methyl-tyrosine)is a newly developed positron tumor positive imagin g agent.
甲基酪氨酸）是新研制的一种正电子肿瘤阳性显像剂。
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