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Zhao H, Li J, Li X, Han C, Zhang Y, Zheng L, Guo M
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Peptide quality can change during storage, particularly if storage conditions are suboptimal
It was determined that the +4 was the dominant charge state for each of the analytes monitored: Retatrutide 4731.3 Da= 1184 m/z Semaglutide 4113.6 Da= 1029 m/z Tirzepatide 4813.5 Da= 1204 m/z The charge state was determined by the following equation: The same method used for the LC-UV analysis was able to be applied to MS to achieve better sensitivity
The peptide category includes signal peptides (GHK-Cu, palmitoyl peptides), neurotransmitter inhibitors (Argireline / AH-8), and growth-factor analogs (sh-Oligopeptide-1)
