Benfluralin Analysis on Obelisc R HPLC Column

Benfluralin is a dinitroaniline herbicide used on grasses and weeds. The EURL (European Union Reference Laboratory) included benfluralin in a study using a multiresidue method by GC-MS/MS in olive oil. Obelisc R was used to separate benfluralin and its impurities using a single multiresidue method, which can be used for many pesticides. Obelisc R contains embedded ionic and hydrophobic groups which can assist in fine tuning. Method is LC/MS compatible and can be used as a general approach for analyzing benfluralin and dozens of other pesticides.


Column Obelisc R, 2.1x150 mm, 5 µm, 100A
Mobile Phase Gradient MeCN - 10-70%, 15 min,  7 min hold
Buffer Gradient AmAc pH 4.5- 20-50 mM, 15 min,  7 min hold
Flow Rate 0.4 ml/min
Detection UV, 250 nm


Class of Compounds  Insecticide, Herbicide, Fungicide,  Hydrophobic, Ionizable
Analyzing Compounds Benfluralin
Application Analytes: