Analysis of glyphosate and glufosinate by capillary electrophoresis–mass spectrometry utilising a sheathless microelectrospray interface

Recent advances in the application of capillary electromigration methods for food analysis

“…Therefore, fast and sensitive analytical procedures are required by the analytical laboratories to face this important demand. In this sense, CE has mostly been applied to detect different type of pesticides in foods [120][121][122][123][124][125][126][127][128][129][130][131], although some other interesting applications as detection of veterinary drugs [132][133][134], toxins [135][136][137] and bacteria [138,139] have also been carried out by CE.…”

“…In a different work [127], a new sorbent for SPE of polar pesticides (phenoxy acids, triazines, ureas, oxime carbamates and carbamates) has been evaluated, showing its usefulness through MEKC determination of these pesticides in tap and river water samples [127]. Analysis of pesticides in foods by using CE-MS has shown to be an interesting alternative in order to improve both the sensitivity and specificity of the analysis [120,122,[129][130][131].…”

Overview of Analytical Techniques for Herbicides in Foods

“…Mass spectrometry (MS) has the potential to be a rigorous direct detection method for these compounds, particularly in their ionic states. Utilising a simple microelectrospray interface, Goodwin (Goodwin et al, 2003) analyzed glyphosate, glufosinate and their metabolites on capillary electrophoresis-mass spectrometry (CE-MS) using a combination of electrical and pressure drive for interface. The observed concentration limit of detection for glyphosate in water is 1 mM and for a water-acetone extract of wheat is 2.5 mM, allowing the underivatised herbicide to be detected at 10% of the maximum residue limit in wheat.…”

Liquid chromatographic determination of glyphosate and aminomethylphosphonic acid residues in rapeseed with MS/MS detection or derivatization/fluorescence detection

“…High-performance liquid chromatography with fluorescence detection (HPLC-FLD) or ultraviolet detection (HPLC-UV) [23,26,27] have an excellent track record in its determination. Other techniques include capillary electrophoresis [28,29], ion chromatography with conductivity [30] or fluorescence [31], gas chromatography [32,33], immunoassays [34,35], nuclear magnetic resonance [36], and integrated pulse amperometry [37].…”