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Updated: Aug 10, 2026

Biochemical Measurement of Neonatal Hypoxia
Published on: August 24, 2011
Documentation of a doxylamine overdose death: quantitation by standard addition and use of three instrumental
Abstract:
To answer the question, "Is this death due to a drug overdose?" requires at least that the drug be unequivocally identified and a blood concentration reliably determined. The approach taken in this case as standard addition technique and use of three different chromatographic techniques-high performance liquid chromatography (HPLC), high performance thin-layer chromatography (HP-TLC) and gas chromatography/mass spectrometry (GC/MS). Each of the chromatographies was carried out on the same extract by splitting the residue three ways. HPLC provided a quantitative result which was 1.2 mg/L in blood and HP-TLC and GC/MS confirmed this result with additional quantitative data, information about two metabolites (nordoxylamine and dinordoxylamine) and conclusive identification. Blood nordoxylamine was 0.52 mg/L and doxylamine plus metabolites in urine was 25 mg/L.
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