1 Research Scholar (UGC-SRF), Department of Forensic Science, Punjabi University, Patiala, Punjab 147002, India. 2 Director, State Forensic Science Laboratory, Amaravati, Hyderabad, Andhra Pradesh 500013, India.3 Professor, Department of Forensic Science, Punjabi University, Patiala, Punjab 147002, India.
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The present article describes the potential utility of derivative ultraviolet (UV) spectrophotometric technique in the discrimination of different kinds of ignitable liquids in their neat states. Derivative UV spectrophotometry is capable of differentiating these ignitable liquids as derivative spectra have more number of points for comparison than their corresponding normal zero order spectrum. Derivative spectra are relatively simple. The technique is rapid, simple, cost-effective and can be used for the screening purpose at the initial stage of investigation. Taking into account the results obtained in the present work, it is possible to suggest the use of this technique to distinguish these ignitable liquids, if recovered from arson scene or clandestine laboratories.