ANALYSIS DEVICE AND ANALYSIS METHOD

摘要

Provided are an analysis device and an analysis method with which variations in measurement values in surface-enhanced Raman spectroscopy can be reduced. The disclosed analysis device (1) includes: a magnetic-flux concentration member (31) that concentrates magnetic flux on a reaction vessel into which an analyte and a reagent containing marker particles, which consist of magnetic particles and metal nanoparticles, have been dispensed, to thereby produce an aggregate by the aggregation of composites formed between the reagent and a substance-to-be-measured contained in the analyte; and a photometer unit (33) that spectrally separates and measures the Raman-scattered light which is generated by irradiating the aggregate with a laser beam emitted from a laser-beam source. The analysis device and the analysis method using same analyze the analyte on the basis of the surface-enhanced Raman-scattered light measured by the photometer unit. The analysis device (1) limits the amount of energy of the laser beam applied to the aggregate in a unit time and in a unit area to 0.001 to 0.005 mW/µm2.