Figure 8From: Use of nano gold obtained by laser ablation for SEIRA analyses of colorantsComparison between the extraction methods. RAS spectra registered on the border of the drop obtained spotting 1 μL of the solution extracted from wool (1 mg, 6 mm in length of a woolen yard ) with the: EDTA (green profile), MeOH (red profile), HCOOH (blue profile) methods, common scale.Back to article page