Determination of cocaine and benzoylecgonine by direct injection of human urine into a column-switching liquid chromatography system with diode-array detection

Elimination of Cocaine and Metabolites in Plasma, Saliva, and Urine Following Repeated Oral Administration to Human Volunteers

Rebecca A. Jufer, Abraham T. Wstadik, Sharon Walsh et al. · Journal of Analytical Toxicology · 2000 · 137 citations · Full text

Pharmacy, Pharmacokinetics, Pharmacology +15

Simultaneous assay of cocaine, heroin and metabolites in hair, plasma, saliva and urine by gas chromatography—mass spectrometry

Wen-Ling Wang, W. D. Darwin, Edward J. Cone · Journal of Chromatography B Biomedical Sciences and Applications · 1994 · 124 citations

Pharmacy, Pharmacology, Toxicology +14

Development of a screening method for cocaine and cocaine metabolites in urine using solvent microextraction in conjunction with gas chromatography

Lowri S. de Jager, Anthony R. J. Andrews · Journal of Chromatography A · 2001 · 119 citations

Pharmacy, Pharmacology, Toxicology +17

Quantitative determination of benzoylecgonine and cocaine in human biofluids by gas-liquid chromatography

Michael J. Kogan, Karl Verebey, Ann DePace et al. · Analytical Chemistry · 1977 · 84 citations

Pharmacy, Pharmaceutical Analysis, Toxicology +14

In Vivo Adulteration: Excess Fluid Ingestion Causes False-Negative Marijuana and Cocaine Urine Test Results

E. J. Cone, R. Lange, W. D. Darwin · Journal of Analytical Toxicology · 1998 · 83 citations · Full text

Pharmacy, Pharmacology, Toxicology +13