Whole system is sealed, preventing escaping of poisonous gas. Automatic reagent change, automatic discharge waste water.
系统全封闭,可自动更换溶剂和排出废液,避免有毒试剂外逸。
2
Finally, the best conditions to determine DNJ by capillary column gas chromatography was confirmed: samples was treated by ultrasonic wave for 30 minutes with Pyridine as extraction reagent.
最终确定用吡啶作为提取试剂在超声波条件下处理30分钟为毛细管气相色谱法测定dnj的最佳提取条件。
3
Thin-layer-iodimetric, Sodium reagent and Gas-chromatography methods were compared to determine methamidosphos. Sodium reagent method was easy and quick for the determination of methamidosphos.