Targeted high-resolution ion mobility separation coupled to ultrahigh-resolution mass spectrometry of endocrine disruptors in complex mixtures

Anal Chem. 2015 Apr 21;87(8):4321-5. doi: 10.1021/ac504866v. Epub 2015 Apr 8.


Traditional separation and detection of targeted compounds from complex mixtures from environmental matrices requires the use of lengthy prefractionation steps and high-resolution mass analyzers due to the large number of chemical components and their large structural diversity (highly isomeric). In the present work, selected accumulation trapped ion mobility spectrometry (SA-TIMS) is coupled to Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) for direct separation and characterization of targeted endocrine-disrupting compounds (EDC) from a complex environmental matrix in a single analysis. In particular, targeted identification based on high-resolution mobility (R ∼ 70-120) and ultrahigh-resolution mass measurements (R > 400 000) of seven commonly targeted EDC and their isobars (e.g., bisphenol A, (Z)- and (E)-diethylstilbestrol, hexestrol, estrone, α-estradiol, and 17-ethynylestradiol) is shown from a complex mixture of water-soluble organic matter (e.g., Suwannee River Fulvic Acid Standard II) complemented with reference standard measurements and theoretical calculations (<3% error).

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Endocrine Disruptors / analysis*
  • Mass Spectrometry
  • Organic Chemicals / chemistry*
  • Spectroscopy, Fourier Transform Infrared
  • Water / chemistry*


  • Endocrine Disruptors
  • Organic Chemicals
  • Water