Journal of The Korean Society of Inherited Metabolic disease (대한유전성대사질환학회지)

The Korea Society of Inherited Metabolic Disease (대한유전성대사질환학회)
권호 표지

A Sensitive Determination of Plasma Free Fatty Acids Following Tert-butyldimethylsilyl Derivatization using Gas Chromatography-Mass Spectrometry for Screening of Fatty Acid Oxidation Disorders

지방산대사이상질환 스크리닝을 위한 TBDMS 유도체화 후 GC-MS를 이용한 혈장 중 유리지방산의 분석

  • Yoon, Hye-Ran (Biomedical & Pharmaceutical Analysis Lab, College of Pharmacy, Duksung Women's University) ;
  • Thapa, Maheshwor (Biomedical & Pharmaceutical Analysis Lab, College of Pharmacy, Duksung Women's University)
  • 윤혜란 (덕성여자대학교 약학대학 생.의약분석실) ;
  • 타파마헤샬 (덕성여자대학교 약학대학 생.의약분석실)
  • Published : 2017.08.30
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Abstract

Purpose: A sensitive gas chromatography mass spectrometry (GC-MS) method was developed for screening of fatty acid oxidation disorders. Methods: The assay utilized a simple protein precipitation with sulfosalicylic acid followed by tert-butyl dimethylsilyl (TBDMS) derivatization of hydroxyl functional group by N-tert-butyldimethylsilyl-N-methyltrifluoroacetamide (MTBSTFA). Results: Calibration curves of spiked pooled plasma showed a linear relationship in the range of 0.01 ng -2 mg with correlation coefficient value greater than 0.98. Limits of detection (LOD) and limits of quantification (LOQ) were found in the range of 0.9-8.8 ng and 9-88 ng, respectively. Conclusion: The new developed method might be useful for a rapid, sensitive screening of inherited fatty acid oxidation disorders. In addition, the method expected to be one of the alternative method for screening newborns of metabolic disorders in the laboratories where expensive MS/MS is unavailable.

Keywords

References

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