HPLC Analysis of Fentin on Obelisc and Primesep Mixed-Mode Columns

 
Fentin is a fungicide made up of three aromatic groups on a tin atom. A single residue method was developed using QuEChERS (Quick, Easy, Cheap, Effective, Rugged, and Safe) method, to be used by EURL (European Union Reference Laboratory). Fentin was analyzed on a 3 micron Primesep 100 and Obelisc R column. Primesep 100 retains using embedded acidic ion-paring groups, while Obelisc R retains using multiple ionic-pairing groups and a long hydrophobic chain. Method is LC/MS compatible and same conditions can be used to separate many different pesticides.
 

Condition 1

Column Obelisc R, 2.1x150 mm, 5 µm, 100A
Mobile Phase Gradient MeCN - 25-70%, 15 min,  7 min hold
Buffer Gradient AmAc pH 3.0- 30-60 mM, 15 min,  7 min hold
Flow Rate 0.4 ml/min
Detection UV, 270 nm
 

Condition 2

Column Obelisc R, 2.1x150 mm, 5 µm, 100A
Mobile Phase Gradient MeCN - 10-70%, 15 min,  7 min hold
Buffer Gradient AmAc pH 3.0- 20-60 mM, 15 min,  7 min hold
Flow Rate 0.4 ml/min
Detection UV, 270 nm
 

Condition 3

Column Primesep 100, 2.1x150 mm, 5 µm, 100A
Mobile Phase Gradient MeCN - 10-70%, 15 min,  7 min hold
Buffer Gradient AmAc pH 3.0- 20-60 mM, 15 min,  7 min hold
Flow Rate 0.4 ml/min
Detection UV, 270 nm
 

Description

Class of Compounds  Insecticide, Herbicide, Fungicide,  Hydrophobic, Ionizable
Analyzing Compounds F
 

Application Analytes:

Fentin