Artemisinin-Luminol Chemiluminescence for Forensic Bloodstain Detection Using a Smart Phone as a Detector
| Autor: | Guobao Xu, Wenyue Gao, Chao Wang, Kateryna Muzyka, Wei Zhang, Jianping Li, Shimeles Addisu Kitte |
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| Rok vydání: | 2017 |
| Předmět: |
Luminescence
Smart phone Blood Stains Indicator Dilution Techniques 02 engineering and technology 01 natural sciences Peroxide Analytical Chemistry law.invention chemistry.chemical_compound law medicine Humans Artemisinin Hydrogen peroxide Chemiluminescence Chromatography Molecular Structure 010401 analytical chemistry Detector 021001 nanoscience & nanotechnology Artemisinins 0104 chemical sciences chemistry Luminescent Measurements Hemin Luminol Smartphone Sodium perborate 0210 nano-technology medicine.drug |
| Zdroj: | Analytical Chemistry. 89:6160-6165 |
| ISSN: | 1520-6882 0003-2700 |
| DOI: | 10.1021/acs.analchem.7b01000 |
| Popis: | Forensic luminol chemiluminescence test is one of the most sensitive and popular methods for the determination of latent bloodstains. It mainly uses hydrogen peroxide or sodium perborate as coreactants. The easy decomposition of hydrogen peroxide and sodium perborate in the presence of many ions significantly affects the selectivity. Artemisinin is a natural peroxide that is quite stable in the presence of common ions. In the present study, artemisinin has been exploited for the forensic bloodstain chemiluminescence detection for the first time. Using smart phone as cost-effective portable detector, the visual detection of bloodstains has been achieved with a dilution factor of blood up to 100 000. Moreover, this system shows excellent selectivity against many common species. It can well differentiate bloodstains from other stains, such as coffee, brown sugar, and black tea. Both favorable sensitivity and selectivity makes the present method promising in forensic detection. |
| Databáze: | OpenAIRE |
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