| 冻干工艺中升华结束点和残余水分测量方法简述 |
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| 引用本文： | 贺素艳,李云飞.冻干工艺中升华结束点和残余水分测量方法简述[J].真空与低温,2002,8(3):135-139. |
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| 作者姓名： | 贺素艳 李云飞 |
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| 作者单位： | 1. 上海交通大学,动力与能源工程学院,上海,200030
2. 上海交通大学,农业与生物学院,上海,201101 |
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| 摘 要： | 升华结束点和残余水分的在线测定是冷冻干燥科学实验及其工艺中的重点和难点 ,着重对其常用确定方法理论模型法、产品温度响应法、压力升高法、湿度传感器法、残余气体分析仪、脉冲核磁共振法 (NMR)、称重法 (重量传感器法 )等 7种方法加以总结和概括。指出脉冲核磁共振法和湿度传感器法将为冻干理论研究和实验研究拓展新思路
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| 关 键 词： | 冷冻干燥 升华结束点 残余水分 |
| 文章编号： | 1006-7086(2002)03-0135-05 |
| 修稿时间： | 2002年5月17日 |
A SIMPLE REVIEW FOR MEASUREMENT METHODS OF RESIDUAL WATER CONTENT AND SUBLIMATION END-POINT DURING FREEZE-DRYING |
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| HE Su-yan\ ,LI Yun-fei\.A SIMPLE REVIEW FOR MEASUREMENT METHODS OF RESIDUAL WATER CONTENT AND SUBLIMATION END-POINT DURING FREEZE-DRYING[J].Vacuum and Cryogenics,2002,8(3):135-139. |
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| Authors: | HE Su-yan\ LI Yun-fei\ |
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| Affiliation: | HE Su-yan\ 1,LI Yun-fei\ 2 |
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| Abstract: | On-line determination of residual water content and sublimation end-point during freeze-drying is important and difficult. The control methods usually used such as theoretical model method, response method of product temperature, pressure rising method, moisture sensing method, residual gas analysis method, proton nuclear magnetic resonance and weight sensing method are explained. The superiority of NMR method and moisture sensing method are explained. The superiority of NMR method and moisture sensing method will develop a new outlet for experimental and theoretical research of freeze-drying. |
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| Keywords: | freeze-drying sublimation end-point residual water content |
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