Comparative Study between Activated Carbon and Charcoal for the Development of Latent Fingerprints on Nonporous Surfaces
For criminal investigations, fingerprints remain the most reliable form of personal identification despite developments in other fields like DNA profiling. The objective of this work is to compare the performance of both commercial charcoal and activated carbon powder derived from the Alhagi pl...
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| Format: | Article |
| Language: | English |
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Al-Khwarizmi College of Engineering – University of Baghdad
2022-12-01
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| Series: | Al-Khawarizmi Engineering Journal |
| Online Access: | https://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/812 |
| _version_ | 1811299879190790144 |
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| author | Hadeel Faroak Hameed Alaa K. Mohammed Dheaa S. Zageer |
| author_facet | Hadeel Faroak Hameed Alaa K. Mohammed Dheaa S. Zageer |
| author_sort | Hadeel Faroak Hameed |
| collection | DOAJ |
| description |
For criminal investigations, fingerprints remain the most reliable form of personal identification despite developments in other fields like DNA profiling. The objective of this work is to compare the performance of both commercial charcoal and activated carbon powder derived from the Alhagi plant to reveal latent fingerprints from different non-porous surfaces (cardboard, plain glass, aluminum foil sheet, China Dish, Plastic, and Switch). The effect of three variables on activated carbon production was investigated. These variables were the impregnation ratio (the weight ratio of KOH: dried raw material), the activation temperature, and the activation time. The effect factors were investigated using Central Composite Design (CCD) software. The optimum activation conditions were found as an impregnation ratio of 1:2.6, activated time of 160 min, and temperature of 630oC. The results of the comparison show that Alhagi active carbon powder (AAC) has a high ability to develop latent fingerprints on all surfaces except on plastic surfaces while the commercial charcoal failed to develop the latent fingerprint on both plastic and aluminum foil sheets surfaces. AAC was found to clearly show every feature of the latent fingerprints more than commercial charcoal for both males and females. Also, AAC has the ability to show latent fingerprints till 15 days while commercial charcoal has the ability to show latent fingerprints just till 7 days.
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| first_indexed | 2024-04-13T06:43:06Z |
| format | Article |
| id | doaj.art-962b14167c364f569a1e7707c6bfdd36 |
| institution | Directory Open Access Journal |
| issn | 1818-1171 2312-0789 |
| language | English |
| last_indexed | 2024-04-13T06:43:06Z |
| publishDate | 2022-12-01 |
| publisher | Al-Khwarizmi College of Engineering – University of Baghdad |
| record_format | Article |
| series | Al-Khawarizmi Engineering Journal |
| spelling | doaj.art-962b14167c364f569a1e7707c6bfdd362022-12-22T02:57:41ZengAl-Khwarizmi College of Engineering – University of BaghdadAl-Khawarizmi Engineering Journal1818-11712312-07892022-12-0118410.22153/kej.2022.09.001Comparative Study between Activated Carbon and Charcoal for the Development of Latent Fingerprints on Nonporous SurfacesHadeel Faroak Hameed0Alaa K. Mohammed1Dheaa S. Zageer2Department of Biochemical Engineering / Al-Khwarizmi College of Engineering/ University of Baghdad/ IraqDepartment of Biochemical Engineering / Al-Khwarizmi College of Engineering/ University of Baghdad/ IraqForensic DNA center for research and training- College of science/ University of Al-Nahrain/ Iraq For criminal investigations, fingerprints remain the most reliable form of personal identification despite developments in other fields like DNA profiling. The objective of this work is to compare the performance of both commercial charcoal and activated carbon powder derived from the Alhagi plant to reveal latent fingerprints from different non-porous surfaces (cardboard, plain glass, aluminum foil sheet, China Dish, Plastic, and Switch). The effect of three variables on activated carbon production was investigated. These variables were the impregnation ratio (the weight ratio of KOH: dried raw material), the activation temperature, and the activation time. The effect factors were investigated using Central Composite Design (CCD) software. The optimum activation conditions were found as an impregnation ratio of 1:2.6, activated time of 160 min, and temperature of 630oC. The results of the comparison show that Alhagi active carbon powder (AAC) has a high ability to develop latent fingerprints on all surfaces except on plastic surfaces while the commercial charcoal failed to develop the latent fingerprint on both plastic and aluminum foil sheets surfaces. AAC was found to clearly show every feature of the latent fingerprints more than commercial charcoal for both males and females. Also, AAC has the ability to show latent fingerprints till 15 days while commercial charcoal has the ability to show latent fingerprints just till 7 days. https://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/812 |
| spellingShingle | Hadeel Faroak Hameed Alaa K. Mohammed Dheaa S. Zageer Comparative Study between Activated Carbon and Charcoal for the Development of Latent Fingerprints on Nonporous Surfaces Al-Khawarizmi Engineering Journal |
| title | Comparative Study between Activated Carbon and Charcoal for the Development of Latent Fingerprints on Nonporous Surfaces |
| title_full | Comparative Study between Activated Carbon and Charcoal for the Development of Latent Fingerprints on Nonporous Surfaces |
| title_fullStr | Comparative Study between Activated Carbon and Charcoal for the Development of Latent Fingerprints on Nonporous Surfaces |
| title_full_unstemmed | Comparative Study between Activated Carbon and Charcoal for the Development of Latent Fingerprints on Nonporous Surfaces |
| title_short | Comparative Study between Activated Carbon and Charcoal for the Development of Latent Fingerprints on Nonporous Surfaces |
| title_sort | comparative study between activated carbon and charcoal for the development of latent fingerprints on nonporous surfaces |
| url | https://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/812 |
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