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A novel approach for forensic differentiation of grass stains using ATR FT-IR spectroscopy and chemometrics
Other Title(s)
طريقة جديدة للتمييز الجنائي لبقع العشب باستخدام مطيافية الانعكاس الكلي المخفض المقترن بتحويل فورييه الطيفي بالأشعة تحت الحمراء "ATR FT-IR" و القياسات الكيميائية
Joint Authors
Singh, Rajinder
Jossan, Jaskirandeep K.
Sharma, Sweety
Jindal, Priyanka
Source
Arab Journal of Forensic Sciences and Forensic Medicine
Issue
Vol. 2, Issue 2 (31 Dec. 2020), pp.128-139, 12 p.
Publisher
Naif Arab University for Security Sciences Arab Society for Forensic Sciences and Forensic Medicine
Publication Date
2020-12-31
Country of Publication
Saudi Arabia
No. of Pages
12
Main Subjects
Abstract EN
Grass evidence often encountered at the crime scene, helps in establishing the primary as well as secondary crime scenes.
Due to the limited quantity and intricate nature of samples, there is a need for fast, sensitive and reliable techniques for the effective analysis of this vital evidence.
In the current study, an attempt is made to study the feasibility of ATR FT-IR in combination with chemometric tools for chemical characterization and species differentiation of grass stains.
Ten different grass species belonging to three subfamilies, Panicoideae, Chlorodoidae, and Bambusoideae, were collected and analyzed by using the ATR FT-IR spectroscopy combined with the PLSR chemometric tool.
Results showed a clear difference between samples of Panicoideae, Chlorodoidae, and Bambusoideae subfamilies, and between species of each subfamily.
To analyse the performance of the classification model, a set of 10 unknown/blind samples (unknown to the analyst) were randomly selected from the training dataset and all unknown/blind samples were accurately assigned in their corresponding group.
ATR FT-IR spectroscopy requires minimal sample preparation and can be successfully used as an eco-friendly, non-destructive, and reliable alternative to other existing methods.
American Psychological Association (APA)
Jossan, Jaskirandeep K.& Sharma, Sweety& Jindal, Priyanka& Singh, Rajinder. 2020. A novel approach for forensic differentiation of grass stains using ATR FT-IR spectroscopy and chemometrics. Arab Journal of Forensic Sciences and Forensic Medicine،Vol. 2, no. 2, pp.128-139.
https://search.emarefa.net/detail/BIM-1276896
Modern Language Association (MLA)
Jossan, Jaskirandeep K.…[et al.]. A novel approach for forensic differentiation of grass stains using ATR FT-IR spectroscopy and chemometrics. Arab Journal of Forensic Sciences and Forensic Medicine Vol. 2, no. 2 (2020), pp.128-139.
https://search.emarefa.net/detail/BIM-1276896
American Medical Association (AMA)
Jossan, Jaskirandeep K.& Sharma, Sweety& Jindal, Priyanka& Singh, Rajinder. A novel approach for forensic differentiation of grass stains using ATR FT-IR spectroscopy and chemometrics. Arab Journal of Forensic Sciences and Forensic Medicine. 2020. Vol. 2, no. 2, pp.128-139.
https://search.emarefa.net/detail/BIM-1276896
Data Type
Journal Articles
Language
English
Notes
Record ID
BIM-1276896