1. State
Key Laboratory of Analytical Chemistry for Life Science, School of
Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210046, China
2. Ministry
of Agriculture-Key Laboratory of Quality and Safety Control for Milk
and Dairy Products, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R. China
3. Dairy Quality Supervision
and Testing Center, Ministry of Agriculture, Harbin 150090, China