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. Author manuscript; available in PMC: 2010 Oct 15.
Published in final edited form as: Free Radic Biol Med. 2009 Jul 17;47(8):1147–1153. doi: 10.1016/j.freeradbiomed.2009.07.019

Figure 3a.

Figure 3a

Gas chromatography/mass spectrometry chromatograms of LA are shown for an assay of 400 uL of control rat serum, as described in Methods. The m-57 ions were monitored. The internal standard ion m/z 267 is shown above and m/z 263 below for the endogenous LA. The calculated result was 0.67 umol/L.