1. CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical PhysicsChinese Academy of Sciences Dalian 116023 China
2. University of Chinese Academy of Sciences Beijing 100049 China
3. Department of Computer Science & EngineeringDalian University of Technology Dalian 116024 China
4. Institute for Clinical Chemistry and Pathobiochemistry, Department for Diagnostic Laboratory MedicineUniversity Hospital Tübingen 72076 Tübingen Germany
5. Core Facility German Center for Diabetes Research (DZD), Clinical Chemistry Laboratory, Institute for Diabetes Research and Metabolic DiseasesUniversity Hospital Tübingen 72076 Tübingen Germany
6. German Center for Diabetes Research (DZD) Tübingen Germany