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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Quantitative gas chromatographic mass spectrometric determination of mandelic acid in blood plasma. Comparison of deuterated and homologous internal standards.

Quantitative gas chromatography/ mass spectrometry/selected ion monitoring of mandelic acid in plasma in the lower micromolar range has been investigated using both the deuterated compound and a homologue, 2-phenyllactic acid, as internal standards. On chromatography of the TMSi-ester ethers, the latter is less stable than the former. The chromatographic isotope effect observed for deuterated mandelic acid does not suggest a carrier function for this compound. Normal plasma levels of mandelic acid are about 0.5 microM. Only a minor portion of phenyramidol is metabolized to mandelic acid. Preliminary in vivo data indicate the presence of a stereoselective transport system for D(-)-mandelic acid in gastrointestinal tract and possibly kidney.[1]

References

  1. Quantitative gas chromatographic mass spectrometric determination of mandelic acid in blood plasma. Comparison of deuterated and homologous internal standards. Luthe, H., Ludwig-Köhn, H., Langenbeck, U. Biomed. Mass Spectrom. (1983) [Pubmed]
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