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Method ConditionsColumnCogent Diamond Hydride?, 4μm, 100A (Microsolv公司)Catalog No.70000-15P-2Dimensions2.1 x 150 mmSolventsA: DI water + 5 mM ammonium acetateB: 90% acetonitrile/10% DI water/10 mM ammonium acetateGradient0.0 min ? 80.0%B1 .0 min 80%B1.1 min to 5%B5.0 min 5%B6.0 min to 80%BPost time5 minFlow rate0.5 mL/min.Sample PrepGlyphosate: 168.0067m/z (M - H)-Figure A: injection #1, RT = 3.365 minFigure B: injection #5, RT = 3.366 minSample stock solution was purchased from Sigma (1000 mcg/mL). Samplefor analysis was made by diluting the stock 1:100 in 30:70 solution A and B.DetectionESI ? neg - Agilent 6210 MSD TOF mass spectrometer.