Immunofluorescence, immunohistochemistry, lectin microarray, ELISA, liquid chromatography, LC-MS/MS, MALDI-TOF and Imaging MS techniques for analysis of N-glycosylation. Broadly, these analyses are either lectin-based, chromatography-based or mass spectrometry based, although significant overlap exists between these classes (e.g. liquid chromatography-coupled mass spectrometry or lectin affinity chromatography).