Skip to main content
Waters

In MassLynx, what do the upside-down question mark and other peak flags mean? - WKB10187

Article number: 10187

ENVIRONMENT

  • MassLynx 4.1
  • MassLynx 4.2
  • Time-of-flight, Tof instruments

ANSWER

? = Peak exceeds dead time correction limits/potential errors
! = Interference or poor mass spectral resolution i.e. lockmass not detected or MS resolution is out of range (see WKB108561 for more information)
¿ = ADC is overloaded
* = Lockmass

ADDITIONAL INFORMATION

In the Spectrum window, find these definitions under the help menu by searching for "peak flags". 

id10187, MALDIG2SI, MLYNX, MLYNXV41, SUPMM, SYNAPT, SYNAPTMS, SYNAPTXS, SYNG2HD, SYNG2HDMAL, SYNG2MS, SYNG2MSMAL, SYNG2SHD, SYNG2SHDML, SYNG2SIHD, SYNG2SIMS, SYNG2SMS, SYNG2SMSML, XEVOG2QTOF, XEVOG2SQTF, XEVOG2STOF, XEVOG2TOF, XEVOG2XSTF, XEVOQTOF

Not able to find a solution? Click here to request help.