LC/MS/MS Analysis of N-Terminal Protein Adducts with Improved Sensitivity: A Comparison of Selected Edman Isothiocyanate Reagents

Table 1

Studied thiohydantoin analytes by LC/MS/MS.

Structure	Analyte	nr	Adduct (𝑅)	Reaget
	FTH-Val	1	H	FITC
	FTH-MeVal	2	Me	FITC
	DABTH-Val	3	H	DABITC
	DABTH-MeVal	4	Me	DABITC
	DNTH-Val	5	H	DNITC
	DNTH-MeVal	6	Me	DNITC
	PTH-MeVal	7	Me	PITC
	PFPTH-MeVal	8	Me	PFPITC
	PFPTH-HOEtVal	9	CH2CH2OH	PFPITC