A new technique which could speed up the detection of chemical warfare agents like sarin and VX, has been tested by a Murdoch University forensics student.

Lucas Dival (pictured), who is studying for a Master of Forensic Science at Murdoch, is testing a method which detects the chemical compounds formed by the degradation of certain chemical weapons faster.

Although the technique provides less detailed results than traditional methods, it is more efficient and uses less equipment.

Mr Dival said the method allowed for multiple samples to be prepared simultaneously, and would make it possible, with further development, for testing to be carried out in less well equipped field laboratories.

“Current techniques to detect the target chemical – methylphosphonic acid (MPA) - often require samples to be evaporated completely – a time consuming and labour intensive process,” Mr Dival said. “My research showed that a new method can essentially skip this step giving a fast answer as to whether MPA is present.”

The technique could most successfully be utilised at sites where nerve agents may have been dumped in large amounts, he said, and would need further refinement to be as effective and sensitive as traditional forensic methods of detection.

Limited testing

The method was originally developed by one of Mr Dival’s supervisors Dr Kate Rowen from Murdoch’s School of Engineering and Information Technology when she worked for The Defence Science and Technology Organisation (DSTO). However, only limited testing took place.

Under the Chemical Weapons Convention, the production, stockpiling and use of chemical weapons is prohibited, with signatory nations required to dismantle chemical warfare arsenals previously developed.

Laboratories all over the world undertake analysis of samples from suspected stockpiles, production facilities and war zones to verify compliance to this Convention.

Mr Dival will be presenting his work at the upcoming Australian and New Zealand Forensic Science Society Symposium, to be held in Perth from 9-13 September.

Almost 40 abstracts from Murdoch University forensic science academics and students have been accepted for presentation at the conference, reflecting the strength in depth in the discipline and related topics at the University.

Other Masters and PhD students from Murdoch will be presenting on a range of topics including how iPhones can be used to produce accurate 3D models of skulls; the recovery of fingerprints from gaffer tape; and whether the proteins in decomposing remains can indicate time since death.

Learn more about studying forensic science at undergraduate and postgraduate levels.