A rapid and quantitative mass spectrometry method for determining the concentration of acylcarnitines and aminoacids in amniotic fluid

Prenat Diagn. 2001 Jul;21(7):543-6. doi: 10.1002/pd.93.

Abstract

We describe a quantitative, rapid, sensitive and reproducible tandem mass spectrometry (MSMS) method for the one-step detection of aminoacid (AAs) and acylcarnitine (ACs) concentrations in amniotic fluid. This technology is quicker and more sensitive than other methods used to date since it is possible to determine very low AA and AC concentrations in samples simultaneously in a single run. The high degree of automation allows a large number of pregnancies to be screened for metabolic defects in a very short time.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acids / analysis*
  • Amniotic Fluid / metabolism*
  • Carnitine / analogs & derivatives*
  • Carnitine / analysis*
  • Female
  • Fetal Diseases / diagnosis*
  • Humans
  • Mass Spectrometry / methods
  • Mass Spectrometry / standards
  • Metabolic Diseases / diagnosis*
  • Predictive Value of Tests
  • Pregnancy
  • Prenatal Diagnosis / standards*
  • Sensitivity and Specificity

Substances

  • Amino Acids
  • acylcarnitine
  • Carnitine