Gas liquid chromatographic determination of tetradifon technical and formulations collaborative study
Van Rossum, B.; Martijn, A.; Launer, J.E.
Journal - Association of Official Analytical Chemists 64(4): 829-832
ISSN/ISBN: 0004-5756 Accession: 005504315
The GLC determination of tetradifon technical and formulations was collaboratively studied in duplicate with 12 laboratories. Six samples were dissolved in dichloroethane with n-hexacosane as the internal standard, chromatographed on a column of 3% SE-52, and detected by flame ionization. The average coefficients of variation were 1.2% for the 2 technical samples, 1.6% for the 2 wettable powders and 1.5% for the 2 emulsifiable concentrates. The method was adopted as offical 1st action.