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解锦华, 杨晓蓉, 曹霞, 胡刘平. 波美计快速测定尿素溶液浓度的方法探讨[J]. 四川林业科技, 2013, 34(2): 69-73. DOI: 10.16779/j.cnki.1003-5508.2013.02.016
引用本文: 解锦华, 杨晓蓉, 曹霞, 胡刘平. 波美计快速测定尿素溶液浓度的方法探讨[J]. 四川林业科技, 2013, 34(2): 69-73. DOI: 10.16779/j.cnki.1003-5508.2013.02.016
XIE Jin-hua, YANG Xiao-rong, CAO Xia, HU Liu-ping. A Study of the Method of Rapid Determination of Urea Solution Concentration by Baume' Hydrometer[J]. Journal of Sichuan Forestry Science and Technology, 2013, 34(2): 69-73. DOI: 10.16779/j.cnki.1003-5508.2013.02.016
Citation: XIE Jin-hua, YANG Xiao-rong, CAO Xia, HU Liu-ping. A Study of the Method of Rapid Determination of Urea Solution Concentration by Baume' Hydrometer[J]. Journal of Sichuan Forestry Science and Technology, 2013, 34(2): 69-73. DOI: 10.16779/j.cnki.1003-5508.2013.02.016

波美计快速测定尿素溶液浓度的方法探讨

A Study of the Method of Rapid Determination of Urea Solution Concentration by Baume' Hydrometer

  • 摘要: 通过实验建立尿素溶液浓度、温度的波美度序列值表,利用波美计测定待测尿素溶液波美度,经波美度序列值表内查得知尿素溶液浓度。实验结果表明,波美计快速测定尿素溶液浓度的方法与传统凯氏定氮法比较,准确率达89.95%%以上,为快速测定尿素溶液浓度的方法提供参考。该方法具有不消耗化学试剂、对实验条件要求低、快速、简便等优点。

     

    Abstract: Based on establishing the urea solution concentration, Baume degree sequence value table of different temperature, and getting the Baume' degree sequence value of different urea solution by Baume' hydrometer, the urea solution concentration can be achieved by Baume' degree sequence value table. By means of this method, the accuracy was more than 89.95% as compared with Kjeldahl method, thus being able to offer reference for further improving the method of rapid determination of urea solution concentration. This method was easy to operate with less reagent consumption, high accuracy and rapid speed.

     

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