LD Baugh

Correlations on radioimmunoassay, fluorescence polarization immunoassay, and enzyme immunoassay of cannabis metabolites with gas chromatography/mass spectrometry analysis of 11-nor-Δ9-tetrahydrocannabinol-9-carboxylic acid in urine specimens

Michael L. Weaver, Ber K. Gan, E Ellen Allen et al. · Forensic Science International · 1991 · 27 citations

Pharmacy, Pharmacology, Toxicology +15

Enzymatic digestion, solid-phase extraction, and gas chromatography/mass spectrometry of derivatized intact oxazepam in urine.

J G Langner, Ber K. Gan, R H Liu et al. · PubMed · 1991 · 25 citations

Pharmacy, Pharmaceutical Analysis, Pharmacology +17

Isotopic Analogue as the Internal Standard for Quantitative Determination of Benzoylecgonine: Concerns with Isotopic Purity and Concentration Level

RH Liu, LD Baugh, E Ellen Allen et al. · Journal of Forensic Sciences · 1989 · 16 citations

Pharmacy, Biochemistry, Pharmaceutical Analysis +13

Simultaneous Gas Chromatography/Mass Spectrometry Assay of Methadone and 2-Ethyl-1, 5-Dimethyl-3,3-Diphenylpyrrolidine (EDDP) in Urine

LD Baugh, RH Liu, AS Walia · Journal of Forensic Sciences · 1991 · 14 citations

Pharmacy, Pharmaceutical Analysis, Pharmacology +13

Selection of an Appropriate Initial Test Cutoff Concentration for Workplace Drug Urinalysis--Cannabis Example

R H Liu, C Edwards, LD Baugh et al. · Journal of Analytical Toxicology · 1994 · 14 citations

Pharmacy, Toxicology, Forensic Toxicology +12