Ji-Hao Chen received his BS Degree and MS degree from the Department of Chemistry, Fu Jen Catholic University (FJCU), in 2018 and 2020, respectively. He is now pursuing a PhD Degree in the Department of Chemistry, FJCU, under the supervision of Professor Tsung-Ting Shih and his research topics mainly include the following: (1) Single-Nanoparticle ICP-MS; (2) Portable/Miniaturized Devices; (3) Microfabrication Techniques; and (4) Related Applications in Food and Environmental Sciences.