Author | Yong Liu

Articles

Differentiation of Inks Used for Seals by Confocal Raman Microscopy and Fourier Transform Infrared Microscopy

April 01, 2015

Spectroscopy

Article

The analysis of seals, mostly via the ink types, can provide evidence to authenticate the related documents and can play a key role in legal cases. In the present study, a method to discriminate red seal inks using Raman microscopy and Fourier transform infrared (FT-IR) spectroscopy was developed.

Discrimination of Carbonate-Containing and Carbonate-Free Polyvinyl Chloride with Fourier Transform Infrared Microscopy and Raman Spectroscopy

June 01, 2012

Spectroscopy

Article

A method is presented using IR and Raman microscopy to discriminate carbonate-containing and carbonate-free PVC that helps forensic scientists trace suspects, avoid wrong certificates of authenticity, and characterize and analyze carbonate components.