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. 2019 May 14;9(26):14822–14833. doi: 10.1039/c9ra02133g

Ions m/z detected in ESI-MS-MS analysis (negative mode) in samples of NAP degradationa.

Compound Structure Formula [M–H]− Error (ppm) mSigma Abundance (%)
1 2-(3-(Hydroxymethyl)-4-(2-methoxyethyl)phenyl)propanoic acid graphic file with name c9ra02133g-u1.jpg C13H18O4 237.1125 3.1 2.9 3.6
2 2-(4-(2-Mmethoxyethyl)-3-methylphenyl)propanoic acid graphic file with name c9ra02133g-u2.jpg C13H18O4 221.1153 15.9 1.2 2.5
3 1-(6-Methoxynaphthalene-2-yl)ethylhydroperoxide graphic file with name c9ra02133g-u3.jpg C13H14O3 217.0852 8.2 9.4 1.6
4 2-(4-(2-Hydroxyvinyl)phenyl)acetic acid graphic file with name c9ra02133g-u4.jpg C12H14O3 205.0833 −18.0 9.8 2.0
5 2-(4-(2-Hydroxyvinyl)phenyl)acetic acid graphic file with name c9ra02133g-u5.jpg C10H10O3 177.0554 1.7 12.4 3.2
6 2-(p-Tolyl)acetic acid graphic file with name c9ra02133g-u6.jpg C9H10O2 149.0592 −10.8 8.5 1.8
a

Error [ppm]: absolute value of the deviation between measured mass and theoretical mass of the selected peak in [ppm]. mSigma: combined value for the standard deviation of the masses and intensities for all peaks, given in [milliSigma].