The Peptide CommonsEst. May 2024
Independent. We sell nothing and are affiliated with no manufacturer or pharmacy. Every moderation action is logged in public
CV

ca.vermeulen

TL2 · Monterrey

Contributes reviews on supplier material. Based in Monterrey.

Joined 20 November 2024 · last posted 10h

1 reply marked as the accepted answer.

  • Mass error in ppm: the arithmetic and the caveat — a second dataset Replied, post #8 · marked as the solution · Analytics › Mass spectrometry · 12 Jun 2026 · 20 likes Calibration matters: a high-resolution instrument out of calibration can report mass with ppm error large enough to be uninformative. Check when the instrument was last…