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WWW ChemTools
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- Ion Formula by Mol. Weight
- Isotope Pattern Calculator
- Mass Loss Calculator
- Periodic e-Table
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WWW BioTools
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- EMBL Peptide Search - protein ID from peptide mass and sequence data
- FindMod - post-translational modifications by peptide mass
- GlycanMass - oligosaccharide mass from structure
- GlycoMod - oligosaccharide structures from mass
- Javascript Protein Digest - peptide digest masses
- Javascipt Fragment Ion Generator for peptides
- Mascot Search - peptide mass and sequence tools
- Mowse - protein identification from peptide MS data
- Protein Prospector - mass spectra interpretation tools
- PROWL - identification of proteins from MS data
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common neutral losses
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Common neutral loss fragments detected by mass spectrometry are shown.
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mass unit
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likely composition
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1
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H
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15
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CH3
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17
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OH
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18
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H2O
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19
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F
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20
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HF
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27
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C2H3, HCN
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28
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C2H4, CO
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30
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CH2O
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31
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CH3O
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32
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CH4O, S
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33
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CH3 + H2O, HS
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33
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H2S
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35(37)
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Cl
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36(38)
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HCl
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42
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C3H6, C2H2O, C2H4N
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43
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C3H7, CH3CO
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44
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CO2O, CONH2
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45
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C2H5O
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55
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C4H7
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57
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C4H9
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59
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C2H3O2
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60
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C2H4O2
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64
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SO2
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79(81)
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Br
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80(82)
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HBr
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127
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I
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128
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HI
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MS Book Suppliers
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- Academic Press
- amazon.com
- American Chemical Society
- Barnes & Noble
- Humana Press
- Royal Society of Chemistry
- Wiley Interscience
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MS Journals
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- European Mass Spectrom.
- Intl. J. of Mass Spectrom.
- J. American Society of MS
- J. Mass Spectrometry
- J. MS Society of Japan
- Mass Spectrometry Reviews
- Rapid Communications in MS
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Literature Search
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- Beilstein Abstracts
- ChemWeb
- Current Contents - ISI
- PubMed - NCBI
- PubScience - DOE
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