Cheng Pan, Hongju Chen, Qin Lin, Siheng Luo, Jialei Gu, Shaoqing Ye, Yongming Zeng, Bin Ren, Zhongqun Tian, Wendong Xue*, Guokun Liu*. Evaluation of the SERS‐based strategy in fast and on‐site food safety inspection: Qualitative and quantitative analysis of trace unexpected herbicide in complicated herbicide matrix. J. Raman Spectrosc., 2020; 51: 2562–2567