戊二烯

Xanthohumol is the main prenyl flavonoid of female inflorescences in the hops.

摘要腐酚是啤酒雌花中主要含异戊二烯基酮。

Abstract： The C5 Fraction derived from ethylene steamcracker contains some very useful components, isoprene, cyclopentadiene and piperylene.

摘 要： 来自裂解乙烯C5馏份含有非常有用化工原——异戊二烯、环戊二烯、戊间二烯。

The controls were homeochronous inpatients with affective disorder and normal individuals.lsoprene breath levels were measured by gas chromatography combined with mass spectroscopy(GC-MS).

用气相色谱一质谱联用其呼出气体中异戊二烯浓度。