The role of derivatization techniques in the analysis of glyphosate and aminomethyl-phosphonic acid by chromatography

2015 ◽  
Vol 121 ◽  
pp. 99-106 ◽  
Author(s):  
T. Arkan ◽  
I. Molnár-Perl
Keyword(s):  
Phosphonic Acid ◽  
Aminomethyl Phosphonic Acid

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.

Evaluation of Titanium Dioxide as a Binding Phase for the Passive Sampling of Glyphosate and Aminomethyl Phosphonic Acid in an Aquatic Environment

2015 ◽  
Vol 87 (12) ◽  
pp. 6004-6009 ◽  
Author(s):  
Vincent Fauvelle ◽  
Tran-Thi Nhu-Trang ◽  
Thibaut Feret ◽  
Karine Madarassou ◽  
Jérôme Randon ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Phosphonic Acid ◽  
Aquatic Environment ◽  
Passive Sampling ◽  
Binding Phase ◽  
Aminomethyl Phosphonic Acid

Role of crystallization water molecules on hydrogen-bonded structures and dielectric phase transitions in amino trimethylene phosphonic acid-based crystals

2017 ◽  
Vol 41 (12) ◽  
pp. 5142-5150 ◽  
Author(s):  
Yu-Ling Sun ◽  
Bei-Bei Zheng ◽  
Wen Zhang
Keyword(s):  
Phase Transitions ◽  
Water Molecule ◽  
Phosphonic Acid ◽  
Water Molecules ◽  
Crystallization Water Molecule ◽  
Crystallization Water ◽  
Organic Salts ◽  
Dielectric Phase ◽  
Hydrogen Bonded

Amino trimethylene phosphonic acid-based organic salts show crystallization water molecule-triggered dielectric transitions and relaxations.

Control of Surface State Emission via Phosphonic Acid Modulation in Ultrasmall CdSe Nanocrystals: The Role of Ligand Electronegativity

2009 ◽  
Vol 113 (19) ◽  
pp. 8169-8176 ◽  
Author(s):  
Michael A. Schreuder ◽  
James R. McBride ◽  
Albert D. Dukes ◽  
Jessica A. Sammons ◽  
Sandra J. Rosenthal
Keyword(s):  
Phosphonic Acid ◽  
Surface State ◽  
Cdse Nanocrystals
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