| 差示扫描量热法高效测定联二脲纯度初探 |
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| 引用本文： | 华诚,魏增. 差示扫描量热法高效测定联二脲纯度初探[J]. 中国材料科技与设备, 2013, 0(3): 78-80 |
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| 作者姓名： | 华诚 魏增 |
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| 作者单位： | [1]珀金埃尔默仪器上海有限公司,上海201203 [2]杭州海虹精细化工有限公司,浙江杭州311113 |
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| 摘 要： | 本文探讨了使用差示扫描量热仪（DSC）准确测定联二脲产品纯度的可能性。通过对比实验发现，传统化学计量差减法测试得到的联二脲样品纯度与采用DSC方法测定得到的结果基本一致，因此可以采用DSC方法代替差减法来高效测定联二脲产品的纯度。相比而言，DSC法具有样品用量少，准确度优异，测试效率高等优点。
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| 关 键 词： | 差示扫描量热仪 联二脲 纯度 分析 |
Discussionon the Accuracy for the Purity Determination of Biureaby Differential Scanning Calorimetry |
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| HUA Cheng,WEI Zeng. Discussionon the Accuracy for the Purity Determination of Biureaby Differential Scanning Calorimetry[J]. Chinese Materials Science Technology & Equipment, 2013, 0(3): 78-80 |
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| Authors: | HUA Cheng WEI Zeng |
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| Affiliation: | 2 (1. PerkinElmerInstrument (Shanghai) Co. , Ltd. , Shanghai, 201203, China; 2. Hangzhou Haihong Fine Chemical Co. , Ltd. , Zhejiang, Hangzhou, 311113, China) |
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| Abstract: | The present article compared the testing accuracy of the purity determinationof biureabetween the Differential Scanning Calorimetry （DSC） and the conventional titration method. It shows that the purity of the biurea sample determined by theStoichiometric Difference Subtraction （SDS） is basically in accordance with the testing result obtained from the DSC. Therefore, biurea product purity can be efficiently determined by DSC instead of SDS. Besides, DSC method needs less sample amount and has higher testing accuracy. |
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| Keywords: | DSC Biurea Purity Analysis |
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