RAMAN CORRELATION SPECTROSCOPIC ANALYSIS METHOD AND ANALYZER THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a method with good selectivity for measuring a diffusion parameter of particles, e.g. a diffusion speed, a diffusion coefficient, local concentration, size and the flow behavior of particles, which eliminates marking to particles to be observed. SOLUTION: An excitation light of a light source, particularly a laser is directed to a sample 10, and a Raman scattering light from the observed capacity sample is collected and guided to a spectrometer, particularly a grating spectrograph 6. The light is developed to spectral lines. A luminance of at least one spectral line is measured at least ten times for every second by a photodetector 8, particularly a photoelectric multiplier or a photodiode. Based on the measured luminance value of the spectral line, a diffusion parameter, concentration, size or the flow behavior of particles in the sample corresponding to the spectral line is calculated by analyzing a change in luminance value, particularly a self correlation or a frequency.