Hi Yee-Soon,
My MZmine steps as following
Raw data imput
Filtering- Scan by scan filtering- Resampling filter-m/zbin length 2ppm
This module does not accept ppm tolerance. If you input 2, it means 2 m/z.
Peak detection- mass detection- centroid= noise 1.0 E4, MS level 1
Chromatogram builder-mass list 1= min time span 0.1, min height 1.0E4, mass
tolerance- 3ppm
Why did you set mass tolerance to 3 ppm?
Looking at your data the mass accuracy of your instrument is nowhere close to 3
ppm...
Best regards,
Tomas
===============================================
Tomáš Pluskal
G0 Cell Unit, Okinawa Institute of Science and Technology Graduate University
1919-1 Tancha, Onna-son, Okinawa 904-0495, Japan
TEL: +81-98-966-8684
Fax: +81-98-966-2890
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