Abstract
Succinylacetone (SA) is used for the diagnosis and monitoring of patients with tyrosinemia type I (Tyr I). SA is exclusively elevated in blood and urine of patients with Tyr I. As urinary SA concentration is much higher than blood, SA is usually tested in urine samples. Urinary SA quantitation by gas chromatography mass spectrometry (GC-MS) is described in this chapter. The urine sample in the amount of 1 μmol creatinine is used for testing. 3,4,5,6,7-13C5-succinylacetone (13C5-SA) is used as an internal standard (IS). SA and 13C5-SA are oximated and extracted from urine with organic solvents, and then derivatized to form trimethylsilane (TMS) derivatives. TMS derivatives of SA and 13C5-SA are detected and quantified by GC-MS using selective ion monitoring (SIM). The assay is linear from 0.05 to 450 mmol/mol creatinine to cover the broad range of urinary SA concentrations.
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Chen, H., Yu, C. (2016). Urinary Succinylacetone Analysis by Gas Chromatography-Mass Spectrometry (GC-MS). In: Garg, U. (eds) Clinical Applications of Mass Spectrometry in Biomolecular Analysis. Methods in Molecular Biology, vol 1378. Humana Press, New York, NY. https://doi.org/10.1007/978-1-4939-3182-8_30
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DOI: https://doi.org/10.1007/978-1-4939-3182-8_30
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