Abstract
The potential of isotachophoresis with conductivity detection for the preconcentration, separation and simultaneous determination of two herbicides (glyphosate and glufosinate) and their metabolites (aminomethylphosphonic acid and methylphosphinicopropionc acid) was investigated. A 0.025 μg mL−1 standard solution of all four analytes was easily detectable in a 40 minute analysis using a volume coupled arrangement of two capillaries connected in series. The conductivity relative step heights (RSHs) were used to assign individual analytes in mixtures. Calibrations were carried out over a dynamic range of three orders of magnitude in concentration, with relative standard deviation in zone length (used to quantify the analytes) shown to be in the range 2–6% at 2.5 μg mL−1 loading.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
