Genomic DNA were extracted from Corni Fructus and its adulterants.The ITS (internal trascribed spacer) regions were amplified using polymerase chain reactio
Locoweed is a poisonous plant,which wildly distributed in most area of the world,it can cause livestock poisoning or death with significant economic loss.Th
Gelatin is a mixture of high molecular weight polypeptides from the hydrolysis of collagen.Doubly Charged Selected Ion Monitoring (DC-SIM) is the most suita