Ametryn: Provisional CIPAC Method 133 for Technical Material, Water Dispersible Granules and Suspension Concentrates (2020)

№ lp_2_3_25429

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Provisional analytical standard describing identification and quantitative determination of ametryn in technical material and formulated products by infrared spectrometry and capillary gas chromatography with flame ionization detection.

ISO Common Name: Ametryn

Chemical Name: 4-N-ethyl-6-methylsulfanyl-2-N-propan-2-yl-1,3,5-triazine-diamine

Empirical Formula: C9H17N5S

Relative Molecular Mass: 227.33

Boiling Point: about 248°C (decomposition)

CAS Number: 834-12-8

CIPAC Code: 133

Method Status: Provisional CIPAC method 2020

Based on: Method supplied by Syngenta Crop Protection, USA

Document Type: Analytical method

Analyte: Ametryn

Formulations Covered: Technical material (TC), Water Dispersible Granules (WG), Suspension Concentrates (SC)

Analytical Technique: Capillary gas chromatography with flame ionization detection

Identity Tests: Infrared spectrometry; Gas-liquid chromatography

Sampling Requirements: Minimum 250 g (TC, WG) or 250 ml (SC)

Repeatability (TC): 10–13 g/kg at 968–972 g/kg

Reproducibility (TC): 19–20 g/kg at 968–972 g/kg

Repeatability (WG): 14 g/kg at 795 g/kg

Reproducibility (WG): 34 g/kg at 795 g/kg

Repeatability (SC): 7.7–10 g/kg at 435–447 g/kg

Reproducibility (SC): 19–20 g/kg at 435–447 g/kg

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