结果:在川续断属植物中发现了三萜类、环稀醚萜类、生物碱、酚酸类、黄酮类和挥发油类化合物。
Results: the chemical constituents including triterpenoid iridoid alkaloids phenolic acids flavonoids and volatile oil were found in the plants of Dipsacus l.
较为详细论述了影响环氧乙烯基酯树脂在酸、碱、盐溶液中稳定性的各种结构因素。
All kinds of structure factors causing the stability of epoxy vinyl ester resin in acid, alkali or salt solutions were particularly discussed in this paper.
介绍了环氧氯丙烷合成新工艺:在催化剂和添加剂存在下,甘油与工业盐酸反应制得二氯丙醇,然后二氯丙醇与碱反应制得环氧氯丙烷产品。
Epichlorohydrin was synthesized from alkali and glycerol dichlorohydrin which was synthesized from glycerol and industrial hydrochloric acid in the presence of catalyst and additive.
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