Transcript 5th European IABPA Conference Rome, 12-15 May 2015 Reflectance spectroscopy on blood stains absorbed by different backgrounds. Davide Manzini Madatec Srl (MADATEC.COM) Pessano con Bornago (MI), Italy.

5th European IABPA Conference
Rome, 12-15 May 2015
Reflectance spectroscopy
on blood stains absorbed by
different backgrounds.
Davide Manzini
Madatec Srl (MADATEC.COM)
Pessano con Bornago (MI), Italy
5th European IABPA Conference
Rome, 12-15 May 2015
Thanks for the work done by:
Gerda Edelman ([email protected])
Maurice Aalders, Ton van Leeuwen
Academic Medical Center, Biomedical Engineering and Physics
Amsterdam, The Netherlands
Vicky Manti, Saskia van Ruth
Wageningen UR, RIKILT Institute of Food Safety
Wageningen, The Netherlands
5th European IABPA Conference
Rome, 12-15 May 2015
HEMOGLOBIN
HbO2
oxydation
20
10
500
600
700
800
Wavelength (nm)
Met-Hb
1.5
1
Hemichrome
Corr. reflectance (-)
Hb
HbO2
MetHb
HC
-1
Ex vivo
oxygenation
Absorption (mm )
30
0.5
0
-0.5
-1
1
1
1
1
-1.5
-2
500
550
600
650
700
750
min
hour
day
week
800
Wavelength (nm)
3
5th European IABPA Conference
Rome, 12-15 May 2015
Thanks for the work done by:
M.llo Capo Rosario Casamassima,
Forensic Science Department
of the Arma dei Carabinieri (Rome)
5th European IABPA Conference
Rome, 12-15 May 2015
The elements needed to build
a Reflectance Spectroscopy
system (VIS):
Spectra taken with the previous
system on sample E
(blood on white paper)
5th European IABPA Conference
Rome, 12-15 May 2015
Same spectra taken on sample
E in derivative mode
(differential, 20 points)
5th European IABPA Conference
Rome, 12-15 May 2015
Spectra taken on sample A
(dark carpet)
5th European IABPA Conference
Rome, 12-15 May 2015
Thanks for your attention ;-)
Fonte dell'immagine:
M. C. Misiti / Istituto Centrale per il Restauro e la Conservazione del
Patrimonio Archivistico e Librario, (ICRCPAL) Roma