Analysis of Writing Ink Dyestuffs by TLC and FT-IR and Its Application to Forensic Science.
-
- TSUTSUMI Kazuhiro
- Criminal Investigation Laboratory, Oita Prefecture Police Headquarters
-
- OHGA Kazuya
- Department of Applied Chemistry, Faculty of Engineering, Oita University
Bibliographic Information
- Other Title
-
- Analysis of Writing Ink Dyestuffs by TL
Search this article
Description
Black, blue and red writing pens were classified into various groups using the Rf values and color tones of dyestuff bands separated by normal-phase thin-layer chromatography (TLC) of their inks. The classification is effective for the preliminary identification of pens used in crime scenes. A microsampling technique was proposed for the TLC analysis of minute quantities of inks on questioned documents. Furthermore, a combination of reflectance-mode microscope/Fourier transform infrared spectroscopy and the pin-point condensation technique was proved to be useful for the precise discrim-ination of trace amounts of analogous water-soluble dyestuffs on TLC plates.
Journal
-
- Analytical Sciences
-
Analytical Sciences 14 (2), 269-274, 1998
The Japan Society for Analytical Chemistry
- Tweet
Keywords
Details 詳細情報について
-
- CRID
- 1390001204254582400
-
- NII Article ID
- 130004439800
- 10002414970
-
- NII Book ID
- AA10500785
-
- COI
- 1:CAS:528:DyaK1cXislGmsbc%3D
-
- ISSN
- 13482246
- 09106340
-
- NDL BIB ID
- 4450406
-
- Text Lang
- en
-
- Data Source
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed