A study on the measurement of GSR with bloodstains by ICP-MS
Dados Bibliográficos
| AUTOR(ES) | |
|---|---|
| AFILIAÇÃO(ÕES) | Department of Forensic Chemistry, Criminal Investigation Police University of China , Shenyang,, Department of Trace Examination, Criminal Investigation Police University of China , Shenyang, |
| ANO | 2024 |
| TIPO | Artigo |
| PERIÓDICO | Forensic Sciences Research |
| ISSN | 2471-1411 |
| E-ISSN | 2096-1790 |
| DOI | 10.1093/fsr/owad033 |
| ADICIONADO EM | 2025-08-18 |
Resumo
In forensic laboratories, analytical investigations of gunshot residues (GSRs) are usually conducted by scanning electron microscopy (SEM) in combination with energy dispersive X-ray microanalysis. If GSRs are covered with bloodstains, SEM cannot detect them. In this study, an inductively coupled plasma mass spectrometry method is proposed to solve this problem. Results show that bloodstains did not interfere with GSRs and low-level elements are detected. Qualitative and quantitative analyses of Sn, Sb, Ba, and Pb elements in GSRs are also carried out. Different pretreatment methods are adopted according to the characteristics of different samples. Our investigations suggest that the proposed method has the advantages of low detection limit and high sensitivity and it can be very important in expert testimony. Key points