Choose a HIFI Data
Data set A
Frequency of detection in Data set A

Data set B
Frequency of detection in Data set B

Data set C
Frequency of detection in Data set C

Logical operation [Help]      
Setting for heteroatom finding
Element        
MS error (0–1.000) ±mDa
Natural abundance (0–100.00) [Help] ±%
Setting for LC-FTICR-MS
Range of retention time min
Round up decimal place (0–2)

Range of detection (m/z)
Round up decimal place  (0–3)
list of exclusion (m/z)

Lowest intensity
Intensity rank at Top to (1–99)
Union
OR
Difference
XOR
Intersection
AND
 Tolerance for intensity of minor isotopes (15N,18O,34S, 37Cl & 81Br).

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