کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
95832 160447 2013 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Circumventing substrate interference in the Raman spectroscopic identification of blood stains
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Circumventing substrate interference in the Raman spectroscopic identification of blood stains
چکیده انگلیسی

Raman spectroscopy has demonstrated remarkable capabilities in identifying blood in controlled laboratory conditions. However, substrate interference presents a significant challenge toward characterizing body fluid traces with Raman spectroscopy at a crime scene. Here, several possible solutions are explored, including the selection of laser excitation, isolating the signal of blood using spectral subtraction and using a favorable substrate for collection which minimizes interference. Simulated blood stain evidence was prepared and analyzed using a Raman microscope with variable laser capabilities. It is shown that the best approach for detecting blood depends on the nature of the substrate and the type of interference encountered.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Forensic Science International - Volume 231, Issues 1–3, 10 September 2013, Pages 157–166
نویسندگان
, , ,