Cuzuel, Vincent;Portas, Eglantine;Cognon, Guillaume;Rivals, Isabelle;Heulard, Francois;Thiebaut, Didier;Vial, Jerome published 《Sampling method development and optimization in view of human hand odor analysis by thermal desorption coupled with gas chromatography and mass spectrometry》. The research results were published in《Analytical and Bioanalytical Chemistry》 in 2017.SDS of cas: 78-69-3 The article conveys some information:
Forensic profiling of human odor is challenging and would be useful to support information provided by dogs in courts of justice. Analyses of volatile compounds constitutive of human odor are commonly performed with gas chromatog. coupled with mass spectrometry. All developed methods and sampling prototypes have to be easy to use in the field by crime scene investigators. This paper will focus on techniques for human hand odor sampling prior to anal. by a thermodesorption device coupled with gas chromatog. and mass spectrometry. Thermodesorption and gas chromatog. were developed using a sorbent phase spiked with a mixture of 80 compounds representative of human hand odor. Then, the crucial sampling step was performed indirectly with a homemade device based on air suction and trapping on a sorbent. This indirect sampling device was evaluated with the same synthetic mixture for optimization. An innovative polymer sorbent called Sorb-Star was compared to classic Tenax TA packed tubes. Sorb-Star provided similar recovery to Tenax TA packed tubes and a smaller pooled coefficient of variation (6 vs. 13%). Thus, it appeared to be fully suited to the indirect sampling of human hand odor. The developed methods were successfully applied to real samples, the ultimate aim being the comparison of a suspect’s sample to a sample collected from a crime scene. The experimental procedure involved many compounds, such as 3,7-Dimethyloctan-3-ol (cas: 78-69-3) .
3,7-Dimethyloctan-3-ol(cas:78-69-3) is a fatty alcohol that is 3-octanol substituted by methyl groups at positions 3 and 7.SDS of cas: 78-69-3 Metabolite observed in cancer metabolism. It has a role as a human metabolite.
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