Importance of evaporation conditions and two internal standards for quantitation of amitriptyline and nortriptyline.
D000639:Amitriptyline / Q000097:blood*; D002851:Chromatography, High Pressure Liquid; D005188:False Negative Reactions; D006801:Humans; D009661:Nortriptyline / Q000097:blood*; D012016:Reference Values
D000639:Amitriptyline; D009661:Nortriptyline