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PBM search for Methanol - very low comparison quality

Posted: Mon Feb 10, 2014 4:57 pm
by zegockie
Hi, I wonder why PBM search for methanol comparison results display a very low quality (> 10) even if the spectra for comparison are identical. This happens only with methanol, for other compounds it is fine (ethanol, acetone etc). My scan range is starting from m/z 29. Interestingly that using NIST search program it is a perfect match (~950). :?:
Thanks,
Eugene