Section 85
Chapter 84,233

Gas-Liquid Chromatographic Determination of Tetradif on Technical and Formulations: Collaborative Study

Rossum, B.V.; Martijn, A.; Launer, J. E.; Calamita, E C.; Oliva, M D.; Prima, S Y D.; Gassola, L.; Gotz, G.; Hitos, M P.; Magallanes, M.; Pavel, K.; Poulingue, P.; Povlsen, H H.; Rasero, F S.; Zeiser, O.

Journal of AOAC INTERNATIONAL 64(4): 829-832


ISSN/ISBN: 0004-5756
Accession: 084232945

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The gas-liquid chromatographic 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 has been adopted official first action.

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