Abstract
An improved mass spectrometric method for multicomponent analysis of metabolities in urine, well-suited for clinical biochemistry, is described. The method involves solvent elution of the metabolites from an adsorbent and the concentration of the eluate on a microadsorption column. This is administered by a direct inlet probe into the ionizing source of field ionization mass spectrometry (FIMS), which yield a molecular weight profile of the metabolites. The procedure provides rapidly (within one hour) reproducible profiles from a small volume of urine. The optimization of the sampling technique and the reproducibility are discussed.
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Kim, K.R., Anbar, M. Multicomponent analysis of metabolites of low volatility in biological fluids by field ionization mass spectrometry. Arch. Pharm. Res. 7, 23–31 (1984). https://doi.org/10.1007/BF02856918
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DOI: https://doi.org/10.1007/BF02856918