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- Title
温度对嗅源气味样本转运的影响.
- Authors
陈然然; 龙成生; 吴德华; 宋珍华
- Abstract
Objective To explore the effect of temperature on the quality and effectiveness of odoriferous samples which to take as the policing-purposed olfactory source in order to provide technical support for transportation of relevant samples. Methods The odoriferous samples were kept under the respective experimental temperature of 20°C (of the environment), 4°C, 25°C and 38°C, with them all being sealed and stored for 24h. Policing dog smelling identifi cation and instrumental analysis were both adopted to detect the trace and original odoriferous samples, with the received data to be analyzed through SPSS 16.0. Results Stored for 24 hours at the temperature of 20°C, 4°C and 25°C, the odoriferous samples of policingpurposed olfactory source did not changed substantively, still enabling the policing dog to make correct identification. However, the temperature of 38°C lasting for 24 hours significantly changed the compositions of experimental samples, having caused policing dog decreasing the accuracy of odor identifi cation. Conclusions When policing dog is the choice for detection, the olfactory odoriferous samples had better store and transport in an airtight niche below 25°C, with 4°C the more appropriate.
- Publication
Forensic Science & Technology, 2020, Vol 45, Issue 6, p606
- ISSN
1008-3650
- Publication type
Article
- DOI
10.16467/j.1008-3650.2020.06.012