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| 分光光度法测定纸品中淀粉含量 |
| Quantitative Determination of Starch in Paper by Spectrophotometer |
| 收稿日期： |
| DOI：10.11980/j.issn.0254-508X.2012.02.005 |
| 关键词: 纸品 淀粉含量测定 分光光度法 |
| Key Words:paper starch spetrophotometry |
| 基金项目: |
| 作者 | 单位 | | 徐 嵘1 | 1.深圳出入境检验检疫局,广东深圳,518045 | | 谢堂堂1 | 1.深圳出入境检验检疫局,广东深圳,518045 | | 陈桂强1 | 1.深圳出入境检验检疫局,广东深圳,518045 | | 章雅玲1 | 1.深圳出入境检验检疫局,广东深圳,518045 | | 周振宇2 | 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%。 |
| 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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