1. Central LaboratoryGuangdong Pharmaceutical University Guangzhou P. R. China
2. Institute of Pharmaceutical AnalysisCollege of PharmacyJinan University Guangzhou P. R. China
3. Shenzhen Institute for Drug Control Shenzhen P. R. China
4. Laboratory for the Analysis of MedicineDepartment of Pharmaceutical SciencesCIRM, University of Liege Liege Belgium