精品文献
测酚类化合废气检测
RP-HPLC-MS分析漆叶中漆酚类化合物
RP-HPLC-MS分析漆叶中漆酚类化合物
采用反相高效液相色谱法结合液-质联用技术对漆叶提取物进行分离,并对其中的漆酚类化合物进行定性分析。结果显示:液相色谱分离得到10个峰,经质谱分析并结合文献,鉴定其中9个峰为C15或C17的饱和、单烯、二烯、及三烯漆酚类物质。首次对漆叶中漆酚类化合物进行了高效液相色谱-质谱分离和定性分析,为漆叶的临床应用提供一定的理论依据。
HPLC法同时测定松果菊属中4种酚类化合物
HPLC法同时测定松果菊属中4种酚类化合物
A method of High-performance liquid chromatography(HPLC) coupled with photodiode-array detection(DAD)techniques was developed for the simultaneous determination of chlorogenic acid,caffeic acid,echinacoside and cichoric acid in the roots,stems,leaves,and flowers respectively from Echinacea samples(Echinacea pallida,E.angustifolia,and E.purpurea).The analyses were carried out on a Shiseido C18 column,with mobile phase gradient.Detection wavelength was set at 329nm.The recovery,precision,stability and linearity for different compounds were satisfactory.
