Helena M. Teixeira

Two fatal intoxication cases with imidacloprid: LC/MS analysis

Paula Proença, Helena M. Teixeira, Fernando Martins Castanheira et al. · Forensic Science International · 2005 · 122 citations

Medicine, Forensic Toxicology, Poisoning +6

Validated method for the simultaneous determination of Δ9-THC and Δ9-THC-COOH in oral fluid, urine and whole blood using solid-phase extraction and liquid chromatography–mass spectrometry with electrospray ionization

Helena M. Teixeira, Alain Verstraete, Paula Proença et al. · Forensic Science International · 2007 · 85 citations

Urology, Liquid Chromatography–mass Spectrometry, Medicine +11

Pesticide intoxications in the Centre of Portugal: three years analysis

Helena M. Teixeira, Paula Proença, Margarida Alvarenga et al. · Forensic Science International · 2004 · 63 citations · Full text

Environmental Chemistry, Ecotoxicity, Biorational Pesticide +12

Analysis of Δ9-tetrahydrocannabinol in oral fluid samples using solid-phase extraction and high-performance liquid chromatography–electrospray ionization mass spectrometry

Helena M. Teixeira, Paula Proença, Alain Verstraete et al. · Forensic Science International · 2005 · 62 citations

Oral Fluid Samples, Biochemistry, Gas Chromatography +10

Antidepressants detection and quantification in whole blood samples by GC–MS/MS, for forensic purposes

Liliana A.A.N.A. Truta, André L. Castro, Sónia Tarelho et al. · Journal of Pharmaceutical and Biomedical Analysis · 2016 · 59 citations

Psychiatry, Bioanalysis, Forensic Toxicology +14