Dr Jijun Tang is now the responsible analytical chemist of Laboratory of Toxicant Analysis in Academy of Medical Military Sciences (AMMSLTA). He has been working as an analytical chemist at AMMSLTA since 2002 and has been involved in OPCW proficiency tests since 2006. After good results of 3 proficiency tests, AMMSLTA became a designated laboratory in 2007. During PTs, He is mainly responsible for sample pretreatment, GC and GC-MS analysis, and preparation of report. Dr. Tang pursued a Master degree and PhD at 2005 and 2011, respectively. He has published several research papers in international journals.