UPLC-MS/MS was used to monitor changes of mepiquat chloride and chlormequat residue during tomato paste process of simulation process.

• 利用超高效液相色谱-串联质谱(UPLC-MS/MS)技术监测缩节胺、矮壮素残留在番茄酱模拟工艺试验过程中的变化情况。