Analysis of Phosphorus-containing Amino Acid-type Herbicides by Sheathless Capillary Electrophoresis/Electrospray Ionization-Mass Spectrometry Using a High Sensitivity Porous Sprayer

A Review of Extraction and Analysis: Methods for Studying Osmoregulants in Plants

“…Although a number of CE methods have been reported for proline analysis [90][91][92][93], there are few publications that analyse proline as a CO. Nishimura et al separated proline and other analytes in a number of plant species using CZE and direct UV detection at low wavelength [35]. They experienced poor analyte sensitivity (100 µM), however, this has since been remedied by using indirect detection [7].…”

CE-MS in Forensic Sciences with Focus on Forensic Toxicology

“…Kawai et al reported on a CZE-ESI-TOF MS method for the forensic analysis of phosphorus-containing amino-acid-type herbicides, glyphosate (GLYP), glufosinate (GLUF), and bialaphos (BIAL) [172]. A new sheathless interface, a high-sensitivity porous sprayer (HSPS), was used in this study, which provided with limits of detection of 7.6, 0.61, and 0.57 pg for GLYP, GLUF, and BIAL, respectively.…”

Capillary electrophoresis and herbicide analysis: Present and future perspectives

“…For UV–visible molecular absorption detection this problem is significant, and may be minimized either by working in the indirect mode or changing to fluorescence detection—either with a conventional excitation source , laser‐induced fluorescence , or indirect fluorescence . Also electrochemical detection—either amperometry , conductimetry , or potentiometry —and particularly a more sensitive and selective, but also more expensive, detection as MS are being used in this field. Increased sensitivity or selectivity can be achieved by preconcentration in the capillary , or by avoiding interferents to enter the capillary, respectively .…”