Analysis of forensic polymer samples using double shot pyrolysis gas chromatography - Mass spectrometry.

Polymers are present in many different products, such as paints, plastics, and rubbers, which are routinely encountered in forensic casework. Comparison of such samples involves an initial visual examination followed by comparison of the chemical compositions of the exhibits. Techniques such as Fourier transform infrared spectroscopy (FTIR) and pyrolysis gas chromatography - mass spectrometry (PyGC-MS) have been reported for determining the chemical compositions of polymers in forensic samples.

Persistence of Polydimethylsiloxane Condom Lubricants.

Polydimethylsiloxane (PDMS) is commonly used to lubricate condoms. The detection of PDMS on swabs from complainants can be used to support an allegation of sexual assault. Previous research has focused on establishing analytical techniques for detecting PDMS.