title: Analysis of ethchlorvynol (Placidyl): evaluation of a comparison performed in a clinical laboratory.
abstract: Common techniques for analyzing ethchlorvynol (Placidyl) by colorimetry and gas liquid chromatography are evaluated. Matrix effects are thoroughly examined to determine their contribution to the validity of results.
mesh_terms: D011232:Chemical Precipitation; D002849:Chromatography, Gas; D003124:Colorimetry; D004984:Ethchlorvynol / Q000032:analysis*; D006801:Humans; D014238:Trichloroacetic Acid; D014414:Tungsten; D017973:Tungsten Compounds
chemical_list: D017973:Tungsten Compounds; D014238:Trichloroacetic Acid; D004984:Ethchlorvynol; C021101:tungstic(VI) acid; D014414:Tungsten