ether extracts 第1页

Identification of chemical compositions in ether extracts of Ligustrum lucidum by GC-MS and chemometrics HPLC specific chromatogram of Dendrobium officinale STUDIES ON SPATIAL VARIABILITY OF CONTENTS OF PETROLEUM ETHER EXTRACTS FROM FLUE-CURED TOBACCO LEAVES AND SOIL FERTILITY FACTORS IN TOBACCO PLANNING FIELDS IN CENTRAL HENAN PROVINCE studies on the Chemical Constituents of Notopterygium incisium Ting Ⅲ Chemical Constituents Isolated and Identified from Petroleum Etber Extracts of N. incisium Ting