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The general toxicology unknown. I. The systematic approach.

N B Wu Chen, M I Schaffer, R L Lin

    Journal of Forensic Sciences
    |April 1, 1983
    PubMed
    Summary

    This study presents a systematic analytical approach for identifying unknown drugs and poisons. It details preliminary screening methods and confirmatory analyses for toxicological investigations.

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    Area of Science:

    • Analytical Chemistry
    • Forensic Toxicology
    • Clinical Chemistry

    Background:

    • General toxicology unknowns pose significant challenges in identification.
    • Accurate identification of drugs and poisons is crucial for patient care and legal investigations.

    Purpose of the Study:

    • To present a systematic analytical approach for the identification of unknown drugs and poisons.
    • To outline preliminary and confirmatory screening methods used in toxicological analysis.

    Main Methods:

    • Preliminary screening included gas chromatography (GC) for alcohol and basic/neutral/acidic drugs, colorimetric analysis for ethchlorvynol, and enzyme multiplied immunoassay technique (EMIT).
    • Additional analyses were case-dependent.
    • Positive findings were confirmed using gas chromatography/mass spectrometry (GC/MS), and quantitation was performed by GC.

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    Main Results:

    • The described systematic approach allows for the comprehensive screening and identification of a wide range of substances.
    • Confirmatory analyses ensure the accuracy of preliminary findings.

    Conclusions:

    • A systematic analytical strategy, combining preliminary screening with advanced confirmatory techniques, is effective for identifying unknown toxic substances.
    • This approach aids toxicologists in managing complex cases involving drug or poison exposure.