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Fig. 2 | Clinical Proteomics

Fig. 2

From: 13C15N: glucagon-based novel isotope dilution mass spectrometry method for measurement of glucagon metabolism in humans

Fig. 2

Representative mass spectrum showing targeted wide SIM scan (869–881) MS1 precursor ions for light glucagon, IS (F22 glucagon), FF glucagon and FFLA glucagon (A). Representative PRM scan showing abundant b-ions (b253+, b263+ and b273+) (B). Inset shows respective b ions for endogenous glucagon, F22 glucagon (spike-in standard), FF glucagon and FFLA glucagon

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