US 2004185063-A1 本溶液由直径小于5μm的小球藻均匀分散在水和乙醇中组成。粉碎小球藻，与80％乙醇溶液混合，0℃以下保存，用超声仪进行超声助溶，得到均匀分散的直径小于5μm的小球藻溶液。本品可与人体中的重金属结合并使重金属随...US 2004185063-A1 本溶液由直径小于5μm的小球藻均匀分散在水和乙醇中组成。粉碎小球藻，与80％乙醇溶液混合，0℃以下保存，用超声仪进行超声助溶，得到均匀分散的直径小于5μm的小球藻溶液。本品可与人体中的重金属结合并使重金属随病人的尿液排出。本品可作为营养品、食品、药品或化妆品（如防晒霜）。本方法可有效地扩大小球藻的表面积，展开更多
To determine the chemical constituents of volatile components in saffron from the Tibet Autonomous Region and the Henan Province of China and to compare the chemical composition difference in the saffron,the total vol...To determine the chemical constituents of volatile components in saffron from the Tibet Autonomous Region and the Henan Province of China and to compare the chemical composition difference in the saffron,the total volatile components were extracted by ultrasonic-assisted solvent extraction（USE）,using five different solvents：diethyl ether,ethanol,ethyl acetate, dichloromethane and acetone,analyzed using gas chromatography-mass spectrometry（GC-MS）and compared to the standard MS data,and their relative contents were calculated by area normalization.The results showed both that USE was an efficient and rapid method for the extraction of the volatile components from saffron and that the components extracted from the same sample using different solvents were different.Comparison of the experimental results of saffron from the Tibet Autonomous Region and the Henan Province of China showed that their volatile components were different in their chemical composition and in their relative percentages.USE/GC-MS is a simple,rapid,and effective method for the analysis of volatile oil components in saffron.展开更多
文摘To determine the chemical constituents of volatile components in saffron from the Tibet Autonomous Region and the Henan Province of China and to compare the chemical composition difference in the saffron,the total volatile components were extracted by ultrasonic-assisted solvent extraction（USE）,using five different solvents：diethyl ether,ethanol,ethyl acetate, dichloromethane and acetone,analyzed using gas chromatography-mass spectrometry（GC-MS）and compared to the standard MS data,and their relative contents were calculated by area normalization.The results showed both that USE was an efficient and rapid method for the extraction of the volatile components from saffron and that the components extracted from the same sample using different solvents were different.Comparison of the experimental results of saffron from the Tibet Autonomous Region and the Henan Province of China showed that their volatile components were different in their chemical composition and in their relative percentages.USE/GC-MS is a simple,rapid,and effective method for the analysis of volatile oil components in saffron.
