Synthesis of 13C-labeled patulin [4-hydroxy-4H-furo[3,2-c]pyran-2(6H)-one] to be used as internal standard in a stable isotope dilution assay
1998
Rychlik, M. | Schieberle, P.
A synthetic route was established for the preparation of [13C2]-4-hydroxy-4H-furo[3,2-c]pyran-2(6H)one (patulin) to be used in a stable isotope dilution assay. Mass spectral analyses were performed using electron impact ionization (EI), negative electrospray ionization (ESI), collision-induced dissociation (CID), and atmospheric pressure ionization. Fragmentation routes in the EI mode and in CID were concluded and compared with each other.
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