Choose a HIFI Data
Data set
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

Range of detection (m/z)

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

Search Hints

  • 1. Select HIFI data set.
    2. When you check the box of Query, the results including the selected element(s) will be returned.
    3. The maximum number of the research result is 5,000. If you need more than 5,000, download TSV.
    4. The Relative intensity (heteroatom-containing ion/monoisotopic ion) can be confirmed in a selected ion (see list).
    Element Isotope Accurate mass Natural abundance(%)
    N 14N 14.003074 99.634
    15N 15.000109 0.336
    O 16O 15.994915 99.762
    17O 16.999131 0.038
    18O 17.999159 0.200
    S 32S 31.972072 95.02
    33S 32.971459 0.750
    34S 33.967868 4.210
    36S 35.967079 0.020
    Cl 35Cl 34.968853 75.770
    37Cl 36.965903 24.230
    Br 79Br 78.918336 50.690
    81Br 80.916290 49.310

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