Abstract
We describe a new practical capillary electrophoresis/electrospray ionization-mass spectrometry (CE/ESI-MS) method for the forensic analysis of phosphorus-containing amino acid-type herbicides, glyphosate (GLYP), glufosinate (GLUF) and bialaphos (BIAL). A new sheathless interface, a high sensitivity porous sprayer (HSPS), was used in this study. The limits of detections of GLYP, GLUF and BIAL were 7.6, 0.61 and 0.57 pg, respectively. These values were 4 – 36 times lower than these obtained by conventional CE/ESI-MS using a sheath liquid. The developed method was successfully applied to the analysis of beverages spiked with the herbicides.
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Kawai, M., Iwamuro, Y., Iio-Ishimaru, R. et al. Analysis of Phosphorus-containing Amino Acid-type Herbicides by Sheathless Capillary Electrophoresis/Electrospray Ionization-Mass Spectrometry Using a High Sensitivity Porous Sprayer. ANAL. SCI. 27, 857–860 (2011). https://doi.org/10.2116/analsci.27.857
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DOI: https://doi.org/10.2116/analsci.27.857