title: Enzyme immunoassay and gas--liquid chromatography compared for determination of lidocaine in serum.
abstract: Lidocaine, an anti-arrhythmic drug, was quantitated in serum by a commercially supplied enzyme immunoassay procedure. Replicate analyses of serum controls resulted in a within-assay coefficient of variation of less than 5.0 and a  between-assay coefficient of variation of less than 6.5. Regression analysis of 87 serum samples analyzed by this technique (y) and by gas-liquid chromatography (x) gave the equation y = 0.96x - 0.03 (r = 0.99). Clinical evaluation of the results indicates the enzyme immunoassay technique to be highly specific and sensitive for lidocaine.
mesh_terms: D002849:Chromatography, Gas; D003429:Cross Reactions; D006801:Humans; D007124:Immunoenzyme Techniques; D008012:Lidocaine / Q000097:blood*; D008722:Methods; D013329:Structure-Activity Relationship
chemical_list: D008012:Lidocaine