kylabs
第2楼2012/04/23
你可以试一下非衍生化的方法：（要用比较特殊的亲水柱）
| Column | Cogent Diamond Hydride™, 4µm, 100A |
| Catalog No. | 70000-15P-2 |
| Dimensions | 2.1 x 150 mm |
| Solvents | A: DI water + 5 mM ammonium acetate B: 90% acetonitrile/10% DI water/10 mM ammonium acetate |
| Gradient | 0.0 min � 80.0%B 1 .0 min 80%B 1.1 min to 5%B 5.0 min 5%B 6.0 min to 80%B |
| Post time | 5 min |
| Flow rate | 0.5 mL/min. |
| Sample Prep | Glyphosate: 168.0067m/z (M - H)- Figure A: injection #1, RT = 3.365 min Figure B: injection #5, RT = 3.366 min Sample stock solution was purchased from Sigma (1000 mcg/mL). Sample for analysis was made by diluting the stock 1:100 in 30:70 solution A and B. |
| Detection | ESI � neg - Agilent 6210 MSD TOF mass spectrometer. |
小猪飞飞
第3楼2012/04/24
| Column | Cogent Diamond Hydride™, 4µm, 100A |
| Catalog No. | 70000-15P-2 |
| Dimensions | 2.1 x 150 mm |
| Solvents | A: DI water + 5 mM ammonium acetate B: 90% acetonitrile/10% DI water/10 mM ammonium acetate |
| Gradient | 0.0 min � 80.0%B 1 .0 min 80%B 1.1 min to 5%B 5.0 min 5%B 6.0 min to 80%B |
| Post time | 5 min |
| Flow rate | 0.5 mL/min. |
| Sample Prep | Glyphosate: 168.0067m/z (M - H)- Figure A: injection #1, RT = 3.365 min Figure B: injection #5, RT = 3.366 min Sample stock solution was purchased from Sigma (1000 mcg/mL). Sample for analysis was made by diluting the stock 1:100 in 30:70 solution A and B. |
| Detection | ESI � neg - Agilent 6210 MSD TOF mass spectrometer. |
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