Социалисты на востоке России: политическая культура компромисса накануне и в начале гражданской войны

N-terminal sequencing of protonated peptides is challenging, since each b(2) ion represents two sequence isomers, e.g., NE and EN. Additionally the occurrence of compositional isomers, such as NE and QD, further increases the number of isomers to four (NE, EN, QD, DQ). This leads to a subset of 13 b... View More