newcompound相关论文
The genus Pholidota(Orchidaceae)belongs to the tribe Coelogyneae,and comprises ca.30 species with a distribution from tr......
目的:研究银杏(Ginkgo biloba L.)叶中新的化学成分.方法:运用柱色谱方法分离纯化.利用UV、IR、MS、~1H NMR、~(13)C NMR等色谱技......
A new compound K<sub>6</sub>Ti<sub>2</sub>Nb<sub>14</sub>O<sub>42</sub>was found inthe ternary system K<sub>2</sub>O-TiO......
