Determination of Total Alkaloids in Emilia sonchifolia Collected at Different Harvesting Time in Guangxi
ZHOU Wu-ping，LI Jun-sheng，WEI Yuan-yuan，YAN Liu-juan，LIANG Yan
FOOD SCIENCE . 2009, (6): 151 -154 .  DOI: 10.7506/spkx1002-6630-200906032