Volume : 10, Issue : 03, March – 2023

Title:

42.FLUORESCENCE ANALYSIS ON BLOODSTAIN
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Authors :

Shibina Najeem, Dr. Prasobh G.R, Mrs. Athira A.S, Ms. Arsha Anand, Ms. Ancy A.B, Ms. Simchu R.B

Abstract :

Fluorimetry is one of the spectral analytical techniques, where the study of measurement of emitted radiation is carried out when electrons undergo transition from singlet excited state to singlet ground state. The fluorescence spectroscopy is versatile technique and it is mainly used for the forensics purposes. This technique rapid inexpensive and non-destructive technique. The most applicable use of this technique is determining the TSD of bloodstains. Thus, the future of fluorescent forensic analysis of bloodstains should focused on detailing out the intricacies of aging mechanism of peripheral and menstrual blood. This technique can be used in combination with other spectroscopic methods that analyses hemoglobin, which is primary component of RBC. Fluorescence is widely used in analysis than the phosphorescence. Fluorescence spectroscopy is rapid inexpensive and also used in forensic purposes also.

Blood is a complex biological sample, that is one of the most common body fluids collected during investigations of crimes. The analysis of blood stain can provide police with significant amount of information relevant to crimes. After the identification of blood stain DNA testing is carried out in order to find the victim or suspect. DNA is currently the primary use for blood stain analysis during forensic investigations as it provides most valuable information. By the use of spectroscopy, the usage of blood stains for forensic purposes increases tremendously. This technique is non – destructive, rapid and confirmatory methods for bloodstain identification.

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