Table 1 Plasma PAA and PAGln mass spectrometry conditions

From: Gut microbiota-dependent increase in phenylacetic acid induces endothelial cell senescence during aging

 

Polarity

Formula

Adduct

Precursor ion (m/z)

Product ion (m/z)

HCD (%)

PAA

Negative

C8H8O2

-H

135.0452

91.0553

30

PAA-d5

Negative

C8H3O2D5

-H

140.0765

96.0869

30

PAGIn

Negative

C13H16N2O4

-H

263.1037

127.0513

60

PAGIn-d5

Negative

C13H11N2O4D5

-H

268.1351

127.0513

60

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