Development of a multiplex PCR method for testing six GM soybean events

► Multiplex PCR method for identifying six GM soybean events. ► Intra-lab validation confirmed the specificity and LOD of this multiplex PCR method. ► Results revealed 3 varieties of GM soybean in 19 of the 30 food samples tested. ► An efficient and cost-effective approach for event-specific analysis of GM soybean.