Analytical Devices

 

The College of Forensic Sciences has a number of high-tech modern devices that are essential to teaching and research, including the following:

Gas Chromatography / Mass Spectrometer device (GC/MS)

This device is a specialist device capable of revealing solid, liquid, and gaseous chemical compounds. Any unknown substance can be identified using this device with only small sample of it, even if it is mixed with other compounds. The device separates all the individual components of a mixture and enters them into the mass spectrometer device one after the other to identify them according to their molecular weights. The information provided with the device enables any substance to be identified however minute it may be and whatever its condition. The results serve as a fingerprint of organic compounds through examining the spectrometry of each one which is then compared with a database of over 400,000 compounds.

Scanning Electron Microscope device (SEM)

This device magnifies things 300,000 times making it possible to study samples as small as a molecule. The device is connected to an x-ray detector and information memory which makes it a unique device for quantitative and qualitative analysis to the tiniest of ratios of heavy elements. It is a very effective device in the field of forensics and in scientific research.

This device is different from traditional microscopes because of its extended capability which enables a comparative study of metals and non-metals, minute trace evidences taken from crime scenes, and the identification of explosive substances and ballistic fingerprinting.

Gas Chromatography device (GC)

This device is a widespread separation device that is used in the field of medicines, drugs, foods, the environment, petrol, and clinical analysis. It can analyze samples in a solid, liquid, or gaseous form – whether in a pure or mixed form. The samples are separated by the column and taken through to for detection carried by the gas. After detection data is provided which enables us to identify the separated substance. The device comes equipped with a printer which enables the results to be viewed and documented in paper form. The device may also be connected to a computer. It has a number of detectors and can be used to identify alcohol, pesticides, and hydrocarbons in their various forms.

High Capacity Liquid chromatography device (HPLC)

The device is an alternative to the gas chromatography device in analyzing and separating compounds which have been affected or broken down by heat. This device is different from other separation devices in that it separates substances in their natural state without any need to use a chemical preparation before or during the analysis. It is also distinguished by its flexibility in being able to use an unlimited number of detectors and separating liquids.

This device performs quantitative and qualitative analyses of compounds by the use of a standard for substances which undergo analysis. It is also possible to determine the type and proportion of a substance by retention factors (RI) or by use of a mass spectrometer by connecting it to this device.

It is also possible to connect this device to a computer to store data taken from analyses.


Other advanced devices in the College include the following:

Atomic Absorption device (AAS)

Ultraviolet / Visual Rays (UV-VIS)

Infrared Device

Light Microscopes

Gel Electrophoresis device

Thermal Cycler device

Video Spectral Comparator device (VSC)

Automated fingerprint identification system (AFIS)

Genetic Analyzer

Real Time PCR

DocuCentre Expert

Forensic Toolkit

Encase Forensic v7 Essentials

Salvation Data Recovery and HDD Repair Suites

ESCA device