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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
biochemistry, genetics and molecular biology
Improved method to determine succinylacetone in dried blood spots for diagnosis of tyrosinemia type 1 using UPLC-MS/MS
Biomedical Chromatography, Volume 22, No. 11, Year 2008
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Description
We describe an improved diagnostic method for tyrosinemia type 1 based on quantifying succinylacetone in dried blood spots by ultra-performance liquid chromatography tandem mass spectrometry. Succinylacetone extracted from a single 3/16 inch disk of specimen collection paper containing a dried blood spot was derivatized with dansylhydrazine, separated on an Acquity UPLC BEH C18 column (2.1 × 50 mm, 1.7 μm) and detected by electrospray ionization tandem mass spectrometry. Succinylacetone derivative eluted at 0.6 min with a complete run time of 1 min. Using a 13C4 labeled succinylacetone as an internal standard, the calibration plot was linear up to 100 μmol/L with a detection limit (S/N = 3) of 0.2 μmol/L. Intra-day (n = 13) and inter-day (n = 10) variations were better than 10%. The cutoff level of succinylacetone in dried blood spots from healthy infants obtained by the current method was 0.63 μmol/L (n = 151). In dried blood spots from patients with established tyrosinemia type 1 (n = 11), concentration of succinylacetone was 6.4-30.8 μmol/ L. Copyright © 2008 John Wiley & Sons, Ltd.
Authors & Co-Authors
Al-Dirbashi, Osama Y.
Saudi Arabia, Riyadh
King Faisal Specialist Hospital and Research Centre
Rashed, Mohamed S.
Saudi Arabia, Riyadh
King Faisal Specialist Hospital and Research Centre
Jacob, Minnie
Saudi Arabia, Riyadh
King Faisal Specialist Hospital and Research Centre
Al-Ahaideb, Lujaine Y.
Saudi Arabia, Riyadh
King Faisal Specialist Hospital and Research Centre
Al-Amoudi, Mohamed S.
Saudi Arabia, Riyadh
King Faisal Specialist Hospital and Research Centre
Rahbeeni, Zuhair Abdalla
Saudi Arabia, Riyadh
King Faisal Specialist Hospital and Research Centre
Al-Sayed, Moeen Aldeen A.
Saudi Arabia, Riyadh
King Faisal Specialist Hospital and Research Centre
Al-Hassnan, Zuhair Nasser
Saudi Arabia, Riyadh
King Faisal Specialist Hospital and Research Centre
Al-Owain, Mohammed Abdulaziz
Saudi Arabia, Riyadh
King Faisal Specialist Hospital and Research Centre
Al-Zeidan, Hamad
Saudi Arabia, Riyadh
King Faisal Specialist Hospital and Research Centre
Statistics
Citations: 37
Authors: 10
Affiliations: 1
Identifiers
Doi:
10.1002/bmc.1049
ISSN:
02693879
e-ISSN:
10990801