| 基于近红外光谱技术的保水剂吸水倍率快速测定新方法 |
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| 引用本文： | 岳征文,张瑞强,阎立功,刘铁军,高天明,刘召.基于近红外光谱技术的保水剂吸水倍率快速测定新方法[J].安徽农业科学,2013(28):11477-11479,11562. |
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| 作者姓名： | 岳征文 张瑞强 阎立功 刘铁军 高天明 刘召 |
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| 作者单位： | 水利部牧区水利科学研究所; |
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| 基金项目： | 中国水科院科研专项项目(MK2013J03);国家自然科学基金项目(40901136) |
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| 摘 要： | 目的]基于近红外光谱技术，研究保水剂吸水倍率的快速测定新方法。方法]通过近红外光谱技术结合偏最小二乘法，对9种聚丙烯酰胺型保水剂的吸水倍率进行研究.结果]保水剂样品光谱数据采用一阶导数法预处理后，应用PLS法建模预测效果最佳。真值与预测值的决定系数达99．55％，模型预测准确率都在96％以上，可应用于生产实践。结论]应用近红外光谱技术结合PLS法可以准确预测出保水剂的吸水倍率，是一种快速、无损、环保的新方法。
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| 关 键 词： | 近红外光谱技术 偏最小二乘法 保水剂 吸水倍率 |
A New Method for Rapid Determination of Water Absorbency of the SAP Based on Near Infrared Spectroscopy |
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| Institution: | YUE Zheng-wen et al (Institute of Hydraulic Science for Pastoral Area, Ministry of Water Resources, Hohhot, Inner Mongolia 010020) |
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| Abstract: | Objective ] The research aimed to study a new method for rapid determination of water absorbency of the SAP based on near infra- red spectroscopy. Method] By combining near infrared spectroscopy with partial least squares （PLS）, water absorbencies of the nine kinds of polyacrylamide-type SAPs were studied. Result ] After the pretreatment of spectral data of the SAP sample by using first-order derivative method, the prediction effect of modeling by PLS was the best. Determination coefficient between true and predicted values reached 99.55% , and accurate rate of the model prediction was over 96% , which could be applied to the production practice. Conclusion] By combining near infrared spectroscopy with PLS, water absorbency of the SAP could be predicted accurately. It was a kind of rapid, lossless and environmental new method. |
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| Keywords: | Near infrared spectroscopy PLS SAP Water absorbency |
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