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Waters

Issue with UNIFI calculated mass display - WKB25379

Article number: 25379

SYMPTOMS

  • The displayed calculated mass for the observed intact protein does not agree/align with other products

ENVIRONMENT

  • UNIFI - 1.9.2 and all previous versions

CAUSE

UNIFI displays the actual real mass (i.e., it includes the electron charge state).

FIX or WORKAROUND

UNIFI Change Request US1#217867 was raised to change the labeling of the column from "Observed Mass (Da)" to "Observed [M+H]+ (Da)". 

ADDITIONAL INFORMATION

Be aware that the observed and expected masses displayed in UNIFI Pep Map analysis are actually the Observed [M+H]+ and Expected [M+H]+ masses. Future versions will label the columns correctly to reflect the actual mass displayed.

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