R. Czarny

Detection of metabolites of lysergic acid diethylamide (LSD) in human urine specimens: 2-oxo-3-hydroxy-LSD, a prevalent metabolite of LSD.

K. Klette, L. McWhorter, G. Poch, 1999, Journal of chromatography. B, Biomedical sciences and applications.

Urine concentrations of ecgonine from specimens with low benzoylecgonine levels using a new ecgonine assay.

K. Barton, R. Czarny, C. Hornbeck, 1995, Journal of analytical toxicology.

Quantitation of methamphetamine and amphetamine in urine by capillary GC/MS Part II. Derivatization with 4-carbethoxyhexafluorobutyryl chloride.

R. Czarny, C. Hornbeck, C. L. Hornbeck, 1989, Journal of analytical toxicology.

Quantitation of methamphetamine and amphetamine in urine by capillary GC/MS. Part I. Advantages of trichloroacetyl derivatization.

R. Czarny, C. Hornbeck, C. L. Hornbeck, 1989, Journal of analytical toxicology.

Detection of a GC/MS artifact peak as methamphetamine.

R. Czarny, C. Hornbeck, J. E. Carrig, 1993, Journal of analytical toxicology.

Retrospective analysis of some L-methamphetamine/L-amphetamine urine data.

R. Czarny, C. Hornbeck, 1993, Journal of analytical toxicology.

Simultaneous GC-MS analysis of meta- and para-hydroxybenzoylecgonine and norbenzoylecgonine: a secondary method to corroborate cocaine ingestion using nonhydrolytic metabolites.

K. Klette, G. Poch, R. Czarny, 2000, Journal of analytical toxicology.