Liquid chromatographic method for determining thiodicarb in technical products and formulations : CIPAC collaborative study

A liquid chromatographic method for determining thiodicarb in technical products and formulations was evaluated by 25 participants from 19 laboratories. Data from 19 laboratories were used in statistical analysis to characterize method performance. Two technical materials, a suspension concentrate, a wettable powder, and a water dispersable granule were analyzed. Thiodicarb was determined by reversed-phase liquid chromatography using a mobile phase of methanol and water. Chromatography was performed on a C 8 column with detection at 254 nm. Quantitation was achieved by using an internal standard and peak area ratios.