Determination of cholesterol using a novel magnetohydrodynamic acoustic-resonance near-IR (MARNIR) spectrometer

Robert G. Buice, Robert A. Lodder

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


Near-IR spectrometric determination of minor constituents of biological systems is complicated by the fact that near-IR spectra of these materials vary in different chemical and physical environments. In such cases, wavelength selection methods and full-spectral techniques such as partial least-squares and principal component regression (which weight each wavelength in calibration) produce excess error because they must attempt to model both variations in major constituents and variations in the analyte. A magnetohydrodynamic acoustic-resonance near-IR (MARNIR) spectrometer can determine major constituents of biological materials noninvasively and nondestructively, leaving the near-IR spectrum of the analyte to be used quantitatively with less prediction error.

Original languageEnglish
Pages (from-to)887-890
Number of pages4
JournalApplied Spectroscopy
Issue number7
StatePublished - 1993


  • Blood analysis
  • Hydrogen bonding
  • Ultrasonic

ASJC Scopus subject areas

  • Instrumentation
  • Spectroscopy


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