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Quantitative Determination of Starch in Paper by Spectrophotometer
  
DOI:10.11980/j.issn.0254-508X.2012.02.005
Key Words:paper  starch  spetrophotometry
Author NameAffiliation
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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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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