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《ANALYTICAL LABORATORY》 1997-01
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Solid Phase Reflection Spectrophotometric Determination of Iron in Geological Samples Enriched by Chitin

Zhao Zhongyi ,Li feili and Hu Chaoyong (Department of Applied Chemistry,China University of Geosciences,Wuhan 430074)  
This paper studied a new solid phase spectrophotometry solid phase reflection spectrophotometry.The paper infers a quantitative relationship between the reflection adsorption value A R and the analytical concentration c.Choosing chitin as the adsorbent to adsorb the complex of iron,phenanthroline and lauryl sodium sulfate.We studied the chitin phase reflection spectrophotometry.Experiments show that,in pH 2~9 medium ,shaking for 7min,0.030g chitin can adsorb 89.3% of the iron complex and form a stable red chitin phase.Its maximum reflection adsorption wavelength is 508nm .In the range of 1~6μg/25mL Fe,there is a good linear relationship between A R and c.The determination limit is 0.012μg/25mL,and the RSD is 3.58% .This method has been successfully used in the determination of iron in geological samples.
【CateGory Index】: O657.32
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10 Zhao Zhongyi ,Li feili and Hu Chaoyong (Department of Applied Chemistry,China University of Geosciences,Wuhan 430074);Solid Phase Reflection Spectrophotometric Determination of Iron in Geological Samples Enriched by Chitin[J];分析试验室;1997-01
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1 Sunjun(Ningbo Environmental Monitoring Centre,Ningbo 315012,China);Determination of Iron Content in Soil or Sediment by Sulfosal Incylic Acid Spectrophotometric Method[J];现代科学仪器;2010-05
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