Lowri S. de Jager

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

Substance Abuse, Solvent Microextraction, Gas Chromatography +13

Development of a rapid screening technique for organochlorine pesticides using solvent microextraction (SME) and fast gas chromatography (GC)

Lowri S. de Jager, Anthony R. J. Andrews · The Analyst · 2000 · 108 citations

Engineering, Pesticide-residue Analysis, Sample Pre-treatment +20

Determination of coumarin, vanillin, and ethyl vanillin in vanilla extract products: liquid chromatography mass spectrometry method development and validation studies

Lowri S. de Jager, Gracia A Perfetti, Gregory W. Diachenko · Journal of Chromatography A · 2007 · 92 citations

Food Chemistry, Vanilla Extract Products, Solvent Extraction +13

Solvent microextraction of chlorinated pesticides

Lowri S. de Jager, Anthony R. J. Andrews · Chromatographia · 1999 · 89 citations

Solvent Extraction, Chemical Engineering, Environmental Chemistry +7

Comparison of headspace-SPME-GC–MS and LC–MS for the detection and quantification of coumarin, vanillin, and ethyl vanillin in vanilla extract products

Lowri S. de Jager, Gracia A Perfetti, Gregory W. Diachenko · Food Chemistry · 2007 · 82 citations

Food Chemistry, Vanilla Extract Products, Biochemistry +10