scholarly journals Determination of glyphosate herbicide and aminomethylphosphonic acid in natural waters by liquid chromatography using pre-column fluorogenic labeling. Part I: Direct determination at the 0.1 μg/L level using FMOC

Analusis ◽  
2000 ◽  
Vol 28 (9) ◽  
pp. 813-818 ◽  
Author(s):  
E. Le Fur ◽  
R. Colin ◽  
C. Charrêteur ◽  
C. Dufau ◽  
J.-J. Péron
Keyword(s):  
Liquid Chromatography ◽  
Natural Waters ◽  
Direct Determination ◽  
Aminomethylphosphonic Acid ◽  
Glyphosate Herbicide

Determination of Glyphosate Herbicide and (Aminomethyl)phosphonic Acid in Natural Waters by Liquid Chromatography Using Pre-Column Fluorogenic Labeling with 9-Fluorenylmethyl Chloroformate

1986 ◽  
Vol 69 (3) ◽  
pp. 458-461 ◽  
Author(s):  
Carl J Miles ◽  
Louis R Wallace ◽  
H Anson Moye
Keyword(s):  
Liquid Chromatography ◽  
Phosphonic Acid ◽  
Natural Waters ◽  
Sample Pretreatment ◽  
Fluorescence Detector ◽  
Rotary Evaporation ◽  
Glyphosate Herbicide ◽  
And Storage ◽  
Aminomethyl Phosphonic Acid

Abstract An analytical method has been developed for determination of glyphosate herbicide and its major metabolite, (aminomethyl)phosphonic acid (AMFA), in natural waters. Sample pretreatment consisted of filtration, addition of phosphate buffer, concentration by rotary evaporation, and a final filtration before derivatization with 9-fluorenylmethyl chloroformate. The derivatives were separated by anion exchange liquid chromatography and measured with a fluorescence detector. Standard curves were linear over 3 orders of magnitude and minimal detectable quantities were 10 ng/mL for glyphosate and 5 ng/mL for AMPA. The 20-fold concentration factor realized in sample preparation corresponds to ppb method detection limits for glyphosate and AMPA in natural waters. Recovery and storage studies were performed and are discussed.

Direct determination of phenolic compounds in Sicilian wines by liquid chromatography with PDA and MS detection

2006 ◽  
Vol 94 (4) ◽  
pp. 640-650 ◽  
Author(s):  
Giovanna Loredana La Torre ◽  
Marcello Saitta ◽  
Fortunato Vilasi ◽  
Teresa Pellicanò ◽  
Giacomo Dugo
Keyword(s):  
Liquid Chromatography ◽  
Phenolic Compounds ◽  
Direct Determination ◽  
Ms Detection
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