LASER-DESORPTION FOURIER-TRANSFORM MASS-SPECTROMETRY OF TRIAZINES ADSORBED ON SOLID-PHASE EXTRACTION MEMBRANES

被引:10
作者
KRIER, G
MASSELON, C
MULLER, JF
NELIEU, S
EINHORN, J
机构
[1] INRA,PHYTOPHARM STN,F-78026 VERSAILLES,FRANCE
[2] UNIV METZ,SPECTROMETRIE MASSE & CHIM LASER LAB,BP 794,F-57012 METZ 1,FRANCE
关键词
D O I
10.1002/rcm.1290080105
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
Until the present, analysis of aqueous solutions of atrazine has been conducted using a combination of liquid chromatography or gas chromatography with mass spectrometry, after a preconcentration step. We explore herein a new approach for studying support-phase-extracted atrazine and hydroxyatrazine samples. Solid-phase extraction membranes are inserted directly into the cell of a Fourier-transform mass spectrometer for analysis after laser ionization. It appears that atrazine and its metabolite have very different ionization processes. In the case of hydroxyatrazine, the [M + H]+ ion signal can be correlated to the concentration of the extracted solution. These encouraging results might open the route to a quantification method.
引用
收藏
页码:22 / 25
页数:4
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