Fig. 11From: Development of a methodology for the characterisation and assessment of biodeteriogens on archaeological surfaces by use of a portable LED-induced fluorescence instrumentFluorescence emission spectra of a leaf sample acquired with the LED-IF instrument. λexc = 440 nm with P = 26 mW (black) and P = 6 mW (red). λexc = 375 nm with P = 6 mW (blue)Back to article page