Katharina Spiegel

Analysis of fatty acid ethyl esters in hair as possible markers of chronically elevated alcohol consumption by headspace solid-phase microextraction (HS-SPME) and gas chromatography-mass spectrometry (GC-MS)

Fritz Pragst, Volker Auwaerter, Frank Sporkert et al. · Forensic Science International · 2001 · 176 citations

Lipid Analysis, Headspace Solid-phase Microextraction, Bioanalysis +7

Illegal and Therapeutic Drug Concentrations in Hair Segments - A Timetable of Drug Exposure?

Fritz Pragst, Michael Rothe, Katharina Spiegel et al. · PubMed · 1998 · 96 citations

Therapeutic Drug Concentrations, Dermatology, Drug Class +22

Hair concentrations and self-reported abuse history of 20 amphetamine and ecstasy users

Michael Rothe, Fritz Pragst, Katharina Spiegel et al. · Forensic Science International · 1997 · 94 citations

Substance Abuse, Psychoactive Drug, Substance Use +15

Are there possibilities for the detection of chronically elevated alcohol consumption by hair analysis? A report about the state of investigation

Fritz Pragst, Katharina Spiegel, Frank Sporkert et al. · Forensic Science International · 2000 · 57 citations

Substance Abuse, Alcohol Misuse, Substance Use +12

Detection of 6-Acetylmorphine in Vitreous Humor and Cerebrospinal Fluid—Comparison with Urinary Analysis for Proving Heroin Administration in Opiate Fatalities

Fritz Pragst, Katharina Spiegel, Ute Leuschner et al. · Journal of Analytical Toxicology · 1999 · 50 citations

Opioid Epidemic, Opiate Fatalities, Drug Assessment +23