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- E-ISSN 2288-8985
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Comparison of aging fingerprint enhancement by pre-treatment of various initiator powders in the cyanoacrylate fuming method
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2022, v.35 no.3, pp.129-135
https://doi.org/10.5806/AST.2022.35.3.129
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(2022). Comparison of aging fingerprint enhancement by pre-treatment of various initiator powders in the cyanoacrylate fuming method. Analytical Science and Technology, 35(3), 129-135, https://doi.org/10.5806/AST.2022.35.3.129
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Abstract
We tested the pre-treatment of alumina, leucine, alumina mixed with leucine at ratios of 9:1 (Al- Leu (9:1)) and 5:1 (Al-Leu (5:1)), and alumina mixed with sodium lactate at a ratio of 5:1 (Al-Lac (5:1)) on aged fingerprints (1, 7, 14, and 30 days after natural fingerprinting) before cyanoacrylate (CA) fuming to improve the development efficacy. As a result of the experiment, fingerprints with pre-treatment of alumina, leucine, Al-Leu (9:1), Al-Leu (5:1), and Al-Lac (5:1) showed better development efficacy (area and minutiae) than fingerprints without pre-treatment. Therefore, this modified CA fuming method improved the development efficacy with five pretreatments.
- keywords
- cyanoacrylate fuming (CA fuming) #1, initiator #2, latent fingerprint #3, aged fingerprint #4, pre-treatment #5
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