Ryan B Paulsen

4PUBLICATIONS
1CO-AUTHORS
Police administration, procedures and practiceCharacterisation of biological macromoleculesInstrumental methods (excl. immunological and bioassay methods)Toxicology (incl. clinical toxicology)
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Publications (4)

|May 19, 2026
A retrospective review of phencyclidine in hair samples of subjects from the United States workplace drug testing population.

|Mar 04, 2025
Analysis of (-)-11-nor-9-carboxy-Δ9-tetrahydrocannabinol and (-)-11-nor-9-carboxy-Δ8-tetrahydrocannabinol in hair from a school-age population.

Ryan B Paulsen, G Neil Stowe, Michael I Schaffer

|Feb 15, 2025
Retrospective fentanyl analysis in the hair of workplace drug testing subjects.

G Neil Stowe, Ryan B Paulsen, Michael I Schaffer

|Jan 02, 2025
Opioid hair concentrations using retrospective prescription data from a United States workplace testing population.

G Neil Stowe, Ryan B Paulsen, Michael I Schaffer

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Frequent Collaborators

4 joint publications

G Neil Stowe