期刊
JOURNAL OF CHROMATOGRAPHY A
卷 998, 期 1-2, 页码 183-199出版社
ELSEVIER
DOI: 10.1016/S0021-9673(03)00437-0
关键词
derivatization, GC; detection, GC; aminoalkanephosphonic acids; aminophosphonic acids; aminophosphinic acids; pesticides; organophosphorus compounds
A new approach for simultaneous analysis of biologically active aminoalkanephosphonic acids, namely glyphosate, phosphonoglycine, phosphonosarcosine, phosphonoalanine, phosphono-beta-alanine, phosphonohomoalanine, phosphono-gamma-homoalanine and glufosinate, is presented. This includes a preliminary P-31 NMR analysis of these amino acids, their further derivatization to volatile phosphonates (phosphinates) by means of trifluoroacetic acid-trifluoroacetic anhydride-trimethyl orthoacetate reagent and subsequent analysis of derivatization products using MS and/or GC-MS (chemical ionization and/or electron impact ionization). (C) 2003 Elsevier Science B.V. All rights reserved.
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