| 分光光度法测定纸品中淀粉含量 |
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| 引用本文： | 徐 嵘,谢堂堂,陈桂强,章雅玲,周振宇.分光光度法测定纸品中淀粉含量[J].中国造纸,2012,31(2):19-22. |
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| 作者姓名： | 徐 嵘 谢堂堂 陈桂强 章雅玲 周振宇 |
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| 作者单位： | 1. 深圳出入境检验检疫局,广东深圳,518045
2. 浙江凯恩特种材料股份有限公司,浙江遂昌,323300 |
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| 摘 要： | 对纸品(含淀粉)进行热水抽提,利用淀粉遇到碘生成蓝色络合物的特性,测定其在最大吸收波长处的吸光度,从而建立了一种快速测定纸品中淀粉含量的方法。该方法精密度好,工作曲线相关性好,检出限0.02%。
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| 关 键 词： | 纸品 淀粉含量测定 分光光度法 |
Quantitative Determination of Starch in Paper by Spectrophotometer |
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| XU Rong
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XIE Tang-tang
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CHEN Gui-qiang
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ZHANG Ya-ling
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ZHOU Zhen-yu.Quantitative Determination of Starch in Paper by Spectrophotometer[J].China Pulp & Paper,2012,31(2):19-22. |
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| Authors: | XU Rong XIE Tang-tang CHEN Gui-qiang ZHANG Ya-ling ZHOU Zhen-yu |
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| Affiliation: | 1.Shenzhen Entry-Exit Inspection and Quarantine Bureau,Shenzhen,Guangdong Province,518045; 2.Zhejiang Kan Specialities Material Co.Ltd,Suichang,Zhejiang Province,323300) |
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| Abstract: | A spectrophotometric method was established to determine the content of starch in paper.Starch was extracted by hot water,then the extract was reacted with iodine to form a blue-green colored complex,the absorbance of solution was measured at peak value of wavelength.This method has a good precision and rather high recovery.The detection limit is 0.02%. |
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| Keywords: | paper starch spetrophotometry |
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