1. Protein Analysis Group, Department of Pharmacy, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
2. Microscale Analytical Systems Group, Department of Pharmacy, University of Copenhagen, 2100 Copenhagen, Denmark
3. Glycomics and Glycan Bioengineering Research Center (GGBRC), College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China