A simplified protocol for the detection of blood, saliva, and semen from a single biological trace using immunochromatographic tests.
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- doi: 10.1007/s12024-021-00453-2
- issn: 1547-769X
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info:eu-repo/semantics/altIdentifier/doi/10.1007/s12024-021-00453-2
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info:eu-repo/semantics/altIdentifier/pmid/35171453
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info:eu-repo/semantics/altIdentifier/eissn/1556-2891
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info:eu-repo/semantics/altIdentifier/urn/urn:nbn:ch:serval-BIB_453BF01D6C6F2
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P. Basset et al., « A simplified protocol for the detection of blood, saliva, and semen from a single biological trace using immunochromatographic tests. », Serveur académique Lausannois, ID : 10.1007/s12024-021-00453-2
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Résumé
The detection of body fluids (e.g., blood, saliva or semen) provides information that is important both for the investigation and for the choice of the analytical protocols. Because of their sensitivity, specificity, as well as their simplicity of use, immunochromatographic tests are widely applied. These tests target different body fluids and generally require specific buffer solutions. If one needs to investigate whether the material is of a specific nature (e.g., blood), this is fine. However, if the material can also contain other material (e.g., saliva or semen) then the use of different tests can be problematic. Indeed, if the different tests require different buffers, it will not be possible to perform all tests on the exact same specimen.In this study, we assess the use of the RSID™-universal buffer to perform three immunochromatographic tests (HEXAGON OBTI, RSID-saliva, and PSA Semiquant) as well as spermatozoa detection. We use the same eluate for the detection of all three body fluids. The proposed protocol provides similar results to those obtained when each test is conducted independently. Furthermore, it does not affect the quality of the DNA profiles. The main advantage of this protocol is that the results of the presumptive test(s) and of the DNA analyses are representative of the exact same specimen.