The assessment of Solstice® PF as a carrier solvent for amino acid sensitive fingermark development techniques

IF 2.2 3区医学 Q1 MEDICINE, LEGAL

Forensic science international Pub Date : 2025-03-12 DOI:10.1016/j.forsciint.2025.112447

Sarah Yergeau , Rolanda Lam , Daniel Hockey , Sebastien Moret

{"title":"The assessment of Solstice® PF as a carrier solvent for amino acid sensitive fingermark development techniques","authors":"Sarah Yergeau , Rolanda Lam , Daniel Hockey , Sebastien Moret","doi":"10.1016/j.forsciint.2025.112447","DOIUrl":null,"url":null,"abstract":"<div><div>Amino acid sensitive fingermark detection techniques like 1,8-diazafluoren-9-one (DFO), 1,2-indanedione/zinc chloride (IND-Zn), and ninhydrin (NIN) commonly contain 1-methoxynonafluorobutane (HFE7100) as a carrier solvent for the visualization of latent fingermarks. As a result of the cessation of manufacturing by the end of 2025, and potential environmental regulations, an alternative carrier solvent must be validated to replace HFE7100. In this study, the relative performance of Solstice® Performance Fluid (PF) (trans-1-chloro-3,3,3-trifluoropropene) was compared to that of HFE7100 using 6000 natural fingermarks, aged for either one week or eight weeks, from five donors on five substrates (white copy paper, brown kraft paper, bubble envelope, lined notebook, magazine). Split fingermarks were treated with DFO or IND-Zn followed by NIN (DFO/NIN and IND-Zn/NIN, respectively) or NIN alone. All fingermarks were evaluated using a modified University of Canberra comparative scale by three assessors and, for differences in identification rates, by a former forensic identification practitioner. Results from this study showed comparable fingermark enhancement between the two carrier solvents after each treatment within the three technique sequences. There are some limitations with Solstice® PF, notably, an increase in ink diffusion and the need to store working solutions in a refrigerator or freezer.</div></div>","PeriodicalId":12341,"journal":{"name":"Forensic science international","volume":"370 ","pages":"Article 112447"},"PeriodicalIF":2.2000,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Forensic science international","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0379073825000854","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MEDICINE, LEGAL","Score":null,"Total":0}

引用次数: 0

Abstract

Amino acid sensitive fingermark detection techniques like 1,8-diazafluoren-9-one (DFO), 1,2-indanedione/zinc chloride (IND-Zn), and ninhydrin (NIN) commonly contain 1-methoxynonafluorobutane (HFE7100) as a carrier solvent for the visualization of latent fingermarks. As a result of the cessation of manufacturing by the end of 2025, and potential environmental regulations, an alternative carrier solvent must be validated to replace HFE7100. In this study, the relative performance of Solstice® Performance Fluid (PF) (trans-1-chloro-3,3,3-trifluoropropene) was compared to that of HFE7100 using 6000 natural fingermarks, aged for either one week or eight weeks, from five donors on five substrates (white copy paper, brown kraft paper, bubble envelope, lined notebook, magazine). Split fingermarks were treated with DFO or IND-Zn followed by NIN (DFO/NIN and IND-Zn/NIN, respectively) or NIN alone. All fingermarks were evaluated using a modified University of Canberra comparative scale by three assessors and, for differences in identification rates, by a former forensic identification practitioner. Results from this study showed comparable fingermark enhancement between the two carrier solvents after each treatment within the three technique sequences. There are some limitations with Solstice® PF, notably, an increase in ink diffusion and the need to store working solutions in a refrigerator or freezer.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Forensic science international 医学-医学：法

CiteScore

5.00

自引率

9.10%

发文量

285

审稿时长

49 days

期刊介绍： Forensic Science International is the flagship journal in the prestigious Forensic Science International family, publishing the most innovative, cutting-edge, and influential contributions across the forensic sciences. Fields include: forensic pathology and histochemistry, chemistry, biochemistry and toxicology, biology, serology, odontology, psychiatry, anthropology, digital forensics, the physical sciences, firearms, and document examination, as well as investigations of value to public health in its broadest sense, and the important marginal area where science and medicine interact with the law. The journal publishes: Case Reports Commentaries Letters to the Editor Original Research Papers (Regular Papers) Rapid Communications Review Articles Technical Notes.