Spectral library search can enable more sensitive peptide identification in tandem mass spectrometry experiments. However, its drawbacks are the limited availability of high-quality libraries and the
A proper internal standard choice is critical for accurate, precise, and reproducible mass spectrometry-based proteomics assays. Synthetic isotopically labeled (SIL) proteins are currently considered
native top-down MS data of human protamines collected on orbitrap fusion lumos. Samples were collected from different patient populations, namely normal, asthenozoospermia, and oliogoasthenozoospermia