1. Application of the micro-FTIR spectroscopy, Raman spectroscopy and XRF method examination of inks 
Janina Zięba-Palus, Marcin Kunicki 
Forensic Science International 
Volume 158, Issue 2, Pages (May 2006)
DOI: /j.forsciint
Copyright © 2005 Elsevier Ireland Ltd Terms and Conditions

2. Fig. 1
Infrared spectra of blue ballpoint pen inks (A6, A11 and A15) and their main dye—methyl violet. b, Bisphenol A; e, ethylene glycol; l, luxol fast blue; s, styrene.
Forensic Science International  , DOI: ( /j.forsciint )
Copyright © 2005 Elsevier Ireland Ltd Terms and Conditions

3. Fig. 2
Infrared spectra of black ballpoint pen inks (B2 and B6) and their main dye—acid blue. a, Benzyl alcohol; l, luxol fast blue.
Forensic Science International  , DOI: ( /j.forsciint )
Copyright © 2005 Elsevier Ireland Ltd Terms and Conditions

4. Fig. 3
Infrared spectra of blue gel inks (D2, D5 and D7) and their main dye—cyaniane lutecia. g, Glycerol; s, styrene.
Forensic Science International  , DOI: ( /j.forsciint )
Copyright © 2005 Elsevier Ireland Ltd Terms and Conditions

5. Fig. 4
Infrared and Raman spectra of blue gel ink D8 and its main dye—cyaniane lutecia.
Forensic Science International  , DOI: ( /j.forsciint )
Copyright © 2005 Elsevier Ireland Ltd Terms and Conditions

6. Fig. 5 Infrared (a) Raman (b) spectra of blue inks (A4, A6 and A13).
Forensic Science International  , DOI: ( /j.forsciint )
Copyright © 2005 Elsevier Ireland Ltd Terms and Conditions

7. Fig. 6
Differentiation of blue ballpoint inks (a) and gels (b) by means of applied methods.
Forensic Science International  , DOI: ( /j.forsciint )
Copyright © 2005 Elsevier Ireland Ltd Terms and Conditions

8. Fig. 7
Differentiation of black ballpoint inks (a) and gels (b) by means of applied methods.
Forensic Science International  , DOI: ( /j.forsciint )
Copyright © 2005 Elsevier Ireland Ltd Terms and Conditions