kylabs
第10楼2011/08/22
你试试这个条件和方法吧：
Method Conditions
| Column | Cogent Bidentate C18™, 4µm, 100A | ||||||||||||||||
| Catalog No. | 40018-75P | ||||||||||||||||
| Dimensions | 4.6 x 75 mm | ||||||||||||||||
| Solvents | A: DI water + 0.1% formic acid B: acetonitrile + 0.1% formic acid | ||||||||||||||||
| Gradient |
| ||||||||||||||||
| Post time | 3 min. | ||||||||||||||||
| Flow rate | 1.0 mL/min. | ||||||||||||||||
| Sample | USP grade tetracycline HCl capsule extract (degraded). Stock Solution: 10.0 mg capsule contents were diluted with 10 mL 1.0 N HCl and sonicated for 10 min. 1 mL aliquot was diluted to 20 mL with DI water. Solution was heated at 80°C for 30 min. Solution was then diluted to 100 mL with DI water and filtered through a 0.45 µm nylon membrane HPLC filter (MicroSolv Technology Corp., Eatontown, NJ, USA). Working Solution: Stock solution was diluted 10x using 0.01 N HCl diluent. | ||||||||||||||||
| Detection | UV 360 nm (0? min) 430 nm (5? min) | ||||||||||||||||
一句话说说参加原创大赛对您的影响和帮助
油罐混装，这样的食用油你还敢吃吗？
色谱耗材品限时大促，火热进行中！
色谱耗材品限时大促，火热进行中！
