LIBS spectra of polychromes with a low cost CCD camera based detector |
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| Institution: | 1. Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea;2. Division of Cardiology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul 03722, Republic of Korea;3. Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul 03722, Republic of Korea |
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| Abstract: | Two real samples of polychromes, from the Spanish Baroque period and from the XV century, were analysed by time-integrated laser-induced breakdown spectroscopy (LIBS). The time-integrated spectra showed negligible contribution of continuum background emission. The spectra of the Baroque sample indicated the presence of vermilion; this was confirmed by near-infrared Fourier transform spectroscopy. LIBS spectra of the XV century sample showed Ca, Al, Mg, Na and Pb lines and the molecular emissions CN(B-X) and C2(d-a). Relative spectral intensities were measured as a function of the number of laser pulses delivered at the same position of the sample. |
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