Open Access. Powered by Scholars. Published by Universities.®
- Discipline
- Keyword
-
- Forensic chemistry (3)
- Forensic science (2)
- Cannabinoids (1)
- Degradation (1)
- Delta-8-THC (1)
-
- Delta-9-THC (1)
- Drug (1)
- Footwear comparison (1)
- Footwear impression (1)
- Forensic drug analysis (1)
- Foundational validity (1)
- GC/MS (1)
- Gas chromatography (1)
- Impression evidence (1)
- Marijuana (1)
- Mass spectrometry (1)
- Outsole (1)
- PCAST (1)
- Randomly acquired characteristic (1)
- Reference standards (1)
- Spot test (1)
- THC (1)
- Tetrahydrocannabinol (1)
- Thermal degradation (1)
- Wear (1)
Articles 1 - 4 of 4
Full-Text Articles in Forensic Chemistry
Separating And Identifying Delta-8-Thc And Delta-9-Thc On Gc/Ms, Ann Schmidt
Separating And Identifying Delta-8-Thc And Delta-9-Thc On Gc/Ms, Ann Schmidt
Honors Projects
Delta-8-THC and delta-9-THC are two psychoactive compounds found in marijuana products which are only distinguishable from each other by alternating the location of a single double bond. This makes them a challenge to separate and identify as different compounds using the GC/MS. These isomers are legally recognized as the different compounds, so being able to identify delta-8 and delta-9 THC separately is crucial to forensic analysis. The goal of this research project is to optimize an Intuvo 9000 GC connected to a standard MS to be able to separately and prominently identify delta-8-THC and delta-9-THC in a sample. This was …
Color Tests For The Presumptive Identification Of A Range Of Benzodiazepines, Regan Mulvin
Color Tests For The Presumptive Identification Of A Range Of Benzodiazepines, Regan Mulvin
Honors Projects
Color tests are presumptive chemical tests that determine the class of drug in both laboratory and field settings. Despite the rising popularity of benzodiazepines and the usefulness of color tests, there is no widely accepted color test for identifying them. This study tested six different color tests against five benzodiazepines, including diazepam, clonazepam, lorazepam, alprazolam, and flualprazolam, to identify which of the tests would work most generally across all benzodiazepines. Of the six tests, the McKibben test, the Janovsky test, and the Zimmerman test all showed potential usefulness as a presumptive color test. More studies should be done on a …
Identification Of Areas Of Weakness In Forensic Footwear Research, Kathryn Roy
Identification Of Areas Of Weakness In Forensic Footwear Research, Kathryn Roy
Honors Projects
Forensic footwear examinations have been carried out for almost a century, but the foundational validity of identifying a questioned impression to a particular shoe has been questioned by the National Research Council and the President’s Council of Advisors on Science and Technology. The focus of this paper was to identify the current weaknesses present in forensic footwear impression research. Additionally, a future experiment was proposed to address these concerns and improve the foundational validity of footwear impression comparisons. A total of 15 footwear research studies varying in methodology and content were analyzed and contrasted. From this, a lack of studies …
The Analysis Of Reference Standard Storage Failures Through The Use Of Ibuprofen, Hope Vonder Brink
The Analysis Of Reference Standard Storage Failures Through The Use Of Ibuprofen, Hope Vonder Brink
Honors Projects
Reference standards are commonly used in drug chemistry. They are used to calibrate the instruments and serve as a known point of reference for analysts’ ability to compare unknowns. Drugs can degrade over time or through environmental factors, causing contaminants to be present. In the event of environmental degradation while in storage, such as the exposure to high heat, it would be beneficial to have a database of known breakdown products in common drug reference standards for analysts’ reference. Using ibuprofen as an exemplar drug, this study attempted to identify the thermal breakdown products of ibuprofen and introduce the proposed …