[Treatment of Dravet disease and false urine testing with ecstasy: a little-known interference].

Urine drug screening is carried out on numerous automated analysis platforms using enzyme-linked immunosorbent assays. While these methods are rapid, they often lack specificity. We report the case of a 5-year-old child treated for Dravet disease and hospitalized for clonic seizures.

Human plasma ricinine quantification by LC-HRMS after micro-solid-phase elution.

A rapid, sensitive and specific method for ricinine identification and quantification in plasma has been developed by LC-HRMS. Deuterated ricinine was used as the internal standard. From 100 μL of plasma, ricinine was extracted using micro-solid-phase elution, which allows a reduced extraction time, by eliminating the evaporation step.