Negative results: Investigations into the quantification of silicone-based condom lubricants in solution by DRIFTS-FTIR
Condom (specifically silicone) lubricants are a form of trace evidence being increasingly submitted for examination in forensic investigations of sexual assault. Interpreting these traces requires an understanding of their transfer and persistence, such as being able to quantify the amount of transf...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-12-01
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| Series: | Forensic Science International: Reports |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2665910722000299 |
| _version_ | 1811294629808570368 |
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| author | Céline Burnier Manolita Monzò Georgina Sauzier Simon W. Lewis |
| author_facet | Céline Burnier Manolita Monzò Georgina Sauzier Simon W. Lewis |
| author_sort | Céline Burnier |
| collection | DOAJ |
| description | Condom (specifically silicone) lubricants are a form of trace evidence being increasingly submitted for examination in forensic investigations of sexual assault. Interpreting these traces requires an understanding of their transfer and persistence, such as being able to quantify the amount of transferred material as well as the loss percentage over time. However, to the best of our knowledge, an accurate quantification method for silicone polymers within a forensic context has not been reported. This study evaluated diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS), a commonly used method for qualitative analysis of condom evidence in casework, as an approach for the quantification or semi-quantification of silicone lubricants in solution. Although a general trend was observed between the DRIFTS signal and the silicone lubricant concentration, high variability between sample runs meant that these changes were not reproducible enough for quantitative prediction. |
| first_indexed | 2024-04-13T05:20:17Z |
| format | Article |
| id | doaj.art-7cd58410dd3c45eda7e37dee7d42e176 |
| institution | Directory Open Access Journal |
| issn | 2665-9107 |
| language | English |
| last_indexed | 2024-04-13T05:20:17Z |
| publishDate | 2022-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Forensic Science International: Reports |
| spelling | doaj.art-7cd58410dd3c45eda7e37dee7d42e1762022-12-22T03:00:46ZengElsevierForensic Science International: Reports2665-91072022-12-016100283Negative results: Investigations into the quantification of silicone-based condom lubricants in solution by DRIFTS-FTIRCéline Burnier0Manolita Monzò1Georgina Sauzier2Simon W. Lewis3Ecole des Sciences Criminelles, University of Lausanne, Switzerland; Correspondence to: École des Sciences Criminelles, Quartier UNIL-Sorge, Bâtiment Batochime, CH-1015 Lausanne, Switzerland.Ecole des Sciences Criminelles, University of Lausanne, SwitzerlandSchool of Molecular and Life Sciences, Curtin University, GPO Box U1987, Perth, Western Australia 6845, AustraliaSchool of Molecular and Life Sciences, Curtin University, GPO Box U1987, Perth, Western Australia 6845, AustraliaCondom (specifically silicone) lubricants are a form of trace evidence being increasingly submitted for examination in forensic investigations of sexual assault. Interpreting these traces requires an understanding of their transfer and persistence, such as being able to quantify the amount of transferred material as well as the loss percentage over time. However, to the best of our knowledge, an accurate quantification method for silicone polymers within a forensic context has not been reported. This study evaluated diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS), a commonly used method for qualitative analysis of condom evidence in casework, as an approach for the quantification or semi-quantification of silicone lubricants in solution. Although a general trend was observed between the DRIFTS signal and the silicone lubricant concentration, high variability between sample runs meant that these changes were not reproducible enough for quantitative prediction.http://www.sciencedirect.com/science/article/pii/S2665910722000299LubricantsInfra-red spectroscopyQuantificationChemometrics |
| spellingShingle | Céline Burnier Manolita Monzò Georgina Sauzier Simon W. Lewis Negative results: Investigations into the quantification of silicone-based condom lubricants in solution by DRIFTS-FTIR Forensic Science International: Reports Lubricants Infra-red spectroscopy Quantification Chemometrics |
| title | Negative results: Investigations into the quantification of silicone-based condom lubricants in solution by DRIFTS-FTIR |
| title_full | Negative results: Investigations into the quantification of silicone-based condom lubricants in solution by DRIFTS-FTIR |
| title_fullStr | Negative results: Investigations into the quantification of silicone-based condom lubricants in solution by DRIFTS-FTIR |
| title_full_unstemmed | Negative results: Investigations into the quantification of silicone-based condom lubricants in solution by DRIFTS-FTIR |
| title_short | Negative results: Investigations into the quantification of silicone-based condom lubricants in solution by DRIFTS-FTIR |
| title_sort | negative results investigations into the quantification of silicone based condom lubricants in solution by drifts ftir |
| topic | Lubricants Infra-red spectroscopy Quantification Chemometrics |
| url | http://www.sciencedirect.com/science/article/pii/S2665910722000299 |
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