A Method for Determination of Free Phytosterols Derived from Vegetable Oils by SPE-GC-GC-TOFMS and Its Application for Discrimination of Refined Waste Oils
XU Baocheng1,2,3, ZHANG Liangxiao2,4, WANG Hua5,*, YANG Qingqing2,6, LUO Denglin3, LI Peiwu2,4,6,7,8,*
FOOD SCIENCE . 2015, (2): 188 -193 .  DOI: 10.7506/spkx1002-6630-201502036