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检测化学需氧量

发布时间: 2020-06-28 10:27 来源: 优莱博技术(北京)有限公司
领域: 其他
样品:氧气项目:检测化学需氧量

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检测化学需氧量

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Titer standardisation of the titration solution

The titer of the solution is determined in use on a daily basis. To do so, 10.0 ml of the potassium dichromate solution 0.02 mol/l are diluted with water to approx. 100 ml. 30 ml of sulphuric acid are added carefully to this solution. After cooling down the solution is placed on the magnetic stirrer and titrated using 3 times the method ?Titer COD“. A triple determination is carried out. The average value is automatically calculated in mol/l and stored into the exchange unit.


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