Fig. 3From: Material characterisation of a painted beehive panel by advanced spectroscopic and chromatographic techniques in combination with hyperspectral imagingOptical micrographs of the cross-sections of a PK2-2 (visible light/× 10 magnification) with the location of Raman analysis indicated, b PK2-2b (visible light/× 20 magnification), and c a Raman spectrum obtained on the location marked in a, implying the presence of lead chromate (λ0 = 514 nm)Back to article page