Abstract
Amino acids extracted from a biological matrix can be resolved and measured using a 6-min per sample method through high-performance liquid chromatography with a short C18 column and rapid gradient using the ion-pairing reagent perfluoroheptanoic acid. LC-tandem mass spectrometry with multiple reaction monitoring (MRM) transitions selective for each compound allows simultaneous quantification of the 20 proteinogenic amino acids and 5 metabolically related compounds. Distinct MRM transitions were also established for selective detection of the isomers leucine/isoleucine and threonine/homoserine.
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Acknowledgments
We thank Lijun Chen of the Michigan State University Mass Spectrometry Core and Yan Lu in the Last Laboratory for assistance in various stages of the project. This project was supported by National Science Foundation grant MCB-0519740 (to R.L.L.).
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Gu, L., Jones, A.D., Last, R.L. (2012). Rapid LC–MS/MS Profiling of Protein Amino Acids and Metabolically Related Compounds for Large-Scale Assessment of Metabolic Phenotypes. In: Alterman, M., Hunziker, P. (eds) Amino Acid Analysis. Methods in Molecular Biology, vol 828. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-61779-445-2_1
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DOI: https://doi.org/10.1007/978-1-61779-445-2_1
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