Guinevere S. M. Kammeijer received a BSc degree in Biotechnology - Forensic Sciences from University of Applied Science van Hall Larenstein, Leeuwarden followed by a MSc in Analytical Chemistry at the VU University, Amsterdam. The MSc included an internship at the Center for Proteomics and Metabolomics at Leiden University Medical Center where she focused on small scale sample preparation with capillary electrophoresis - electrospay ionization - mass spectrometry (CE-ESI-MS). Currently, she is a PhD candidate at the same Center for Proteomics and Metabolomics under the supervision of Prof. Manfred Wuhrer. Her project involves exploring CESI-MS(/MS) for protein glycosylation analysis with a focus on the analysis of glycopeptides, employing a porous nano-sprayer for MS coupling.