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How do I compute the expected m/z for the +3 charge state of tirzepatide?

Asked 31 Oct 2024Modified 21 months agoViewed 20k times
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This is my second independent submission on material from the same supplier.

I would rather understand the derivation than memorise the outcome.

Two people I asked gave two answers that differ by a factor of ten, which is suggestive.

Can someone walk through the arithmetic step by step?

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askedseamus_brady15k1831 Oct 2024
8Voting to keep this open — it is more specific than it first looks. – kwn_analytical 9 months ago
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This question has not been answered. It has been viewed 20k times, which suggests the question is of interest and the answer is not obvious. If you can answer it with a source or a worked calculation, it will be read. See how to ask and answer.
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