July/August 2008

393 Drug Testing in Oral Fluid—Evaluation of Sample Collection Devices
Kaarina Langel, Charlotta Engblom, Anna Pehrsson, Teemu Gunnar, Kari Ariniemi, and Pirjo Lillsunde

402 Urine Monitoring of Diazepam Abuse—New Intake or Not?
Roland Lennestål, Hans-Åke Lakso, Mats Nilsson, and Tom Mjörndal

408 Concentration Distribution of the Marijuana Metabolite Δ9-Tetrahydrocannabinol-9-Carboxylic Acid and the Cocaine Metabolite Benzoylecgonine in the Department of Defense Urine Drug-Testing Program,
John F. Jemionek, Curtis L. Copley, Michael L. Smith, and Marilyn R. Past

417 The Detection and Quantitative Analysis of the Psychoactive Component of Salvia divinorum, Salvinorin A, Using Liquid Chromatography– Mass Spectrometry in Human Biological Fluids,
Pamela C. McDonough, Justin M. Holler, Shawn P. Vorce, Thomas Z. Bosy, Joseph Magluilo, Jr., and Marilyn R. Past

422 Quantitative Analysis of the Aminosteroidal Non-Depolarizing Neuromuscular Blocking Agent Vecuronium by LC–ESI-MS: A Postmortem Investigation,
Shawn P. Vorce, Craig T. Mallak, and Aaron Jacobs

428 Δ9-Tetrahydrocannabinol Content of Commercially Available Hemp Products,
Justin M. Holler, Thomas Z. Bosy, Christopher S. Dunkley, Barry Levine, Marilyn R. Past, and Aaron Jacobs

433 TECHNICAL NOTE: Evaluation of Four Immunoassay Screening Kits for the Detection of Benzodiazepines in Urine,
Rebecca T. DeRienz, Justin M. Holler, Megan E. Manos, John Jemionek, and Marilyn R. Past

438 TECHNICAL NOTE: Papain Adulteration in 11-nor-Δ9-Tetrahydrocannibinol-9-carboxylic Acid-Positive Urine Samples,
Scott J. Larson, Justin M. Holler, Joseph Magluilo, Jr., Christopher S. Dunkley, and Aaron Jacobs

444 TECHNICAL NOTE: Detection of 1-Benzylpiperazine and 1-(3-Trifluoromethylphenyl)-piperazine in Urine Analysis Specimens Using GC–MS and LC–ESI-MS,
Shawn P. Vorce, Justin M. Holler, Barry Levine, and Marilyn R. Past

451 CASE REPORT: Postmortem Increase of Flecainide Level in Cardiac Blood,
Kei Yoshitome, Satoru Miyaishi, Yuji Yamamoto, and Hideo Ishizu

454 LETTER TO THE EDITOR: Time of Heroin Use,
Amanda J. Jenkins and Edward J. Cone

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