title: Analysis of phosphorus-containing amino acid-type herbicides by sheathless capillary electrophoresis/electrospray ionization-mass spectrometry using a high sensitivity porous sprayer.
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.
authors.affiliation: Forensic Science Laboratory, Ishikawa Prefectural Police Headquarters, 1-1 Kuratsuki, Kanazawa 920-8553, Japan.
authors.forename: Mio
authors.initials: M
authors.lastname: Kawai
authors.forename: Yoshiaki
authors.initials: Y
authors.lastname: Iwamuro
authors.forename: Reiko
authors.initials: R
authors.lastname: Iio-Ishimaru
authors.forename: Satoshi
authors.initials: S
authors.lastname: Chinaka
authors.forename: Nariaki
authors.initials: N
authors.lastname: Takayama
authors.forename: Kazuichi
authors.initials: K
authors.lastname: Hayakawa
mesh_terms: D000596:Amino Acids / Q000737:chemistry*; D000613:Aminobutyrates / Q000032:analysis / Q000737:chemistry; D019075:Electrophoresis, Capillary; D005998:Glycine / Q000031:analogs & derivatives / Q000032:analysis / Q000737:chemistry; D006540:Herbicides / Q000032:analysis* / Q000737:chemistry*; D015394:Molecular Structure; D009943:Organophosphorus Compounds / Q000032:analysis / Q000737:chemistry; D010758:Phosphorus / Q000032:analysis / Q000737:chemistry; D016062:Porosity; D021241:Spectrometry, Mass, Electrospray Ionization; D013499:Surface Properties; D000097797:Glyphosate
chemical_list: D000596:Amino Acids; D000613:Aminobutyrates; D005998:Glycine; D006540:Herbicides; D009943:Organophosphorus Compounds; D010758:Phosphorus; D000097797:Glyphosate; C003122:bialaphos; C003121:phosphinothricin