A liquid-contained substance analysis device according to this invention
comprises: a substrate 14, which is coated on the surface with PVA and
which is mirror finished; a first light source 18 for illuminating light
onto substrate 14; and light detector 30, which detects the scattered
light due to a liquid or a trace of a liquid that exists on substrate 14,
and the position of liquid L or trace of liquid L is detected based on the
scattered light detected by light detector 30. By then illuminating
excitation light from a second light source 20 onto the detected position,
the substances contained in liquid L are analyzed.
