conventionally , reaction measurement for a reaction using semiconductor nanoparticles has been conducted by measuring absorbance and fluorescence intensity in a solution , and thus only a relative evaluation has been available , and its operation is complicated . the present invention provides an industrial evaluation method that is simply performed by conducting the measurement after a semiconductor nanoparticle solution is dried . further , the measurement in a dry condition allows semiconductor nanoparticles to be applied to biopolymer microarrays or the like .