分光光度法测定纸品中淀粉含量  

Quantitative Determination of Starch in Paper by Spectrophotometer

作　　者：徐嵘[1] 谢堂堂[1] 陈桂强[1] 章雅玲[1] 周振宇 

机构地区：[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

出　　处：《中国造纸》2012年第2期19-22,共4页China Pulp & Paper

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%。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%.

关 键 词：纸品 淀粉含量测定 分光光度法 

分 类 号：TS77[轻工技术与工程—制浆造纸工程]