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Chromatogram

Description

Nabam is a di-thiocarbamate fungicide which is used on soils and leaves to protect from a variety of diseases on fruits, vegitables, field crops, and turf. Obelisc R and Primesep B2 were used to retain nabam and separate it from impurities. Primesep B2 contains embedded basic ion-pairing groups while Obelisc R contains embedded ionic and hydrophobic groups which can assist in fine tuning separations. Method is LC/MS compatible and can be used as a general approach for analyzing nabam and dozens of other pesticides.

Method Parameters

Mobile PhaseGradient MeCN – 10-70%, 15 min,  7 min hold
BufferGradient AmAc pH 3.0- 20-60 mM, 15 min,  7 min hold
Flow Rate0.4 ml/min
DetectionUV, 250 nm
Class of CompoundsInsecticide, Herbicide, Fungicide,  Hydrophobic, Ionizable
Analyzing CompoundsNabam

HPLC Column Used

Obelisc R, 2.1×150 mm, 5 µm, 100A