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Topics - Bruce

MS-DIAL / means of circle with different size and color for molecular spectrum networking
Dear everyone,
Can everyone have the experience of using the function of molecular spectrum networking of MS-dial, what is the algorithm to judge or search the compound.
Besides, what is the meaning of the circle with different color, size(related to the abundance?) and distance (similarity?).

I try to use it to search the compound with similar structure for one target compound, but sometimes, the compounds proposed by the software had any similar fragmental ions compare to the target fragmental ions, why? Can anyone kindly give some suggestions for me!