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《JOURNAL OF UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING》 1996-06
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Preseparation Method for Ion Chromatography of Inorganic Anions in Colorants

Chen Wenlei1);Shao Guangdi1);Yang Ruikang2)(1 Department of Chemistry,USTB,Beijing 100083.PRC 2)National Research Center for Certified Reference Material)  
Adsorption character and conditions of the five colorants on three different kinds of adsorbent (polycaprolactam powder,active carbon,anion exchange resin)were systematically investigated.Elution behavior of seven inorganic anions was also studied.The results shows that all the three kinds of adsorbent can be used for preseparation of seven inorganic anions in the five synthetic colorants.Recoveries are 95% ̄105% and matrix interference in ion chromatography is eliminated effectively.
【CateGory Index】: TS202.3
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