Hi Chunchao, It is possible there are peaks with same m/z and different retention times. There are many chemical compounds with same formula (= mass) but different structure. Please send us the XIC plots of the detected peaks (go to your peak list, then right click on the peak, Show TIC). Or you can send your raw data file and what parameters you used. Without looking at the data, we cannot give you any advice.
Tomas On Nov 30, 2010, at 1:49 AM, Chunchao Zhang wrote: > To whom it may concerns, > I'm currently using mzmine software to exact ion chromatograph > from LC-MS data. I first ran the Chromatogram builder algorithm to > detect chromatograph then did deconvolution of chromatograms after > peak detction. One of problem is I found multiple peaks with same m/z > ratio in the peak list but with different RT, height and Area etc. > Because my data came from high-resolution mass spec with high-mass > accruracy, I would like to see one peak corresponding to one m/z ratio > in the peak list. So I was wandering if there is anything wrong in > what I did for XIC. Thanks! > > chunchao > > ------------------------------------------------------------------------------ > Increase Visibility of Your 3D Game App & Earn a Chance To Win $500! > Tap into the largest installed PC base & get more eyes on your game by > optimizing for Intel(R) Graphics Technology. Get started today with the > Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs. > http://p.sf.net/sfu/intelisp-dev2dev > _______________________________________________ > Mzmine-devel mailing list > Mzmine-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/mzmine-devel > =============================================== Tomas Pluskal G0 Cell Unit, Okinawa Institute of Science and Technology 1919-1 Tancha, Onna-son, Okinawa 904-0412, Japan TEL: +81-98-966-8684 ------------------------------------------------------------------------------ Increase Visibility of Your 3D Game App & Earn a Chance To Win $500! Tap into the largest installed PC base & get more eyes on your game by optimizing for Intel(R) Graphics Technology. Get started today with the Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs. http://p.sf.net/sfu/intelisp-dev2dev _______________________________________________ Mzmine-devel mailing list Mzmine-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mzmine-devel
