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基于液芯光纤和CCD的分光光度法测定河水中的Cr(VI)

Determination of Trace Cr(VI) in River Water Using Liquid Core Optical Fiber and Charge Coupled Device

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【作者】 张信凤辛娟娟张力培侯贤灯

【Author】 ZHANG Xin-feng~(1),XIN Juan-juan~(1),ZHANG Li-pei~(1),HOU Xian-deng ~(2)(1.College of Chemistry,Sichuan University,Chengdu 610064,China;2.Analytical & Testing Center,Sichuan University,Chengdu 610064,China)

【机构】 四川大学化学学院四川大学分析测试中心 成都610064成都610064

【Abstract】 A convenient and sensitive spectrometric system based on a liquid core optical fiber and a charge coupled device was constructed for the determination of chromium(VI) in river water.Diphenylcarbazide was added to Cr(VI) solution to form colored complex in the medium of perchloric acid.With a 35 cm long Teflon optical fiber,the limit of detection(LOD) was 0.4 μg·L-1,ten times lower than that of Chinese National Standard Procedure(GB7467-87).The method was applied to determine Cr(VI) in river water without any preconcentration.The recovery was 99%~107%.

  • 【文献出处】 四川大学学报(自然科学版) ,Journal of Sichuan University(Natural Science Edition) , 编辑部邮箱 ,2006年03期
  • 【分类号】X832
  • 【被引频次】6
  • 【下载频次】143
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