Can anyone advise, what are the synthetic peptide by-products revealed as +96 molecular ions in MS analysis?

We synthesized the peptide Thr-Ser-Lys-Tyr on Wang resin by Fmoc chemistry. After the cleavage/deprotection with a mixture of TFA/TIS/anisole/water and precipitation of the peptide by...

19 August 2015 5,316 7 View