Methods and apparatus for identifying and quantifying constituent compounds in a specimen using modulated polychromatic partially polarized light

摘要: Methods and devices for determining the identity concentration of constituent compounds within a test specimen. The methods are based on principle that specific compound in will modify pattern incident polychromatic light manner is recognizable. system includes source directed first through an generator then Reflected transmitted components pass recognition gating device selects portions analysis by array detectors. include producing modulated particular interest selectively analyzing reflected or according to known patterns concentrations. Modulated variations wavelength (typically non-absorbing compound), partial polarization, as well modulation phase, amplitude, sampling frequency, polarization frequency. selective spectral scanning identification amplitudes second polarizer accurately identifying shifts. detector identifies scattering angles associated with each various analyzed conditions. sufficiently unique be recognizable given regardless presence additional