Table 2. Peak List of Insulin Fragments Identified in the Positive Polarity Spectrum with their Affiliated Chemical Assignment, m/z Value, and Deviation (to Assess the Accuracy of the Assignment).

Description (amino acid sequence)	Assignment	m/z	Deviation (ppm)
FVNQ	C22H32N6O5Na+	483.2320	–1.3
FVNQ	C23H32N6O6Na+	511.2271	–0.8
FVNQ	C23H35N7O6Na+	528.2536	–1.0