Section 8
Chapter 7,517

Liquid chromatographic method for determination of technical deltamethrin and deltamethrin in pesticide formulations cipac collaborative study

Hanks, A.R.

Journal - Association of Official Analytical Chemists 73(5): 751-752


ISSN/ISBN: 0004-5756
Accession: 007516318

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A liquid chromatographic method for determination of deltamethrin in 6 different technical and formulated products was collaboratively studied in 14 laboratories. Each sample is dissolved in isooctane-1,4-dioxane (80 + 20), separated by LC on a silica gel column (cyano column for ultra low volume formulation), and detected at 254 nm (230 nm for .ltoreq. 0.5% powder formulations). Quantitation is done by peak area measurements. Relative standard deviations for repeatability and reproducibility ranged from 0.56 to 1.00% and from 0.76 to 2.90%, respectively. The method has been approved interim official first action by AOAC as a CIPAC-AOAC method.

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