Accurate sequence confirmation, including differentiation of isomers or isobaric variants, and structural elucidation of low-level impurities often require more advanced MS/MS techniques, such as electron-capture dissociation (ECD) or electron-transfer dissociation (ETD)
While the ISOS must, by law, inform binding regulations, its effectiveness can be compromised by conflicts and negotiations among stakeholderssuch as governments, property owners, and communitiesarising from competing interests
doi:10.1038/s41580-018-0094-y
Se is present in selenoproteins in the form of selenocysteine, which is involved in constituting the active center of selenoproteins
doi: 10.1007/s00439-023-02532-6 30
Could I be allergic to my GLP-1 medication