高等学校化学学报

高等学校化学学报 ›› 1996, Vol. 17 ›› Issue (3): 377.

• 论文 • 上一篇    下一篇

液芯光纤长光路法在水溶液中测定Cr、Cu

王菊芳1, 廖远敏1, 冯明昭1, 王卫2, 林钧岫2, 何去奢2, 吴关炎2, 潘丽英3, 赵禺山3, 何田3   

  1. 1. 中国科学院新疆化学研究所, 乌鲁木齐 830011;
    2. 中国科学院新疆物理研究所, 乌鲁木齐 830011;
    3. 新疆环境保护研究所
  • 收稿日期:1995-03-28 出版日期:1996-03-24 发布日期:1996-03-24
  • 通讯作者: 王卫
  • 作者简介:王菊芳,女,53岁,副研究员.
  • 基金资助:

    国家自然科学基金

Determination of(Ⅵ),Cu(Ⅱ)in Aqueous Solution by Liquid-Core Optical Fiber Spectrophotometry

WANG Ju-Fang1, LIAO Yuan-Min1, FENG Ming-Zhao1, WANG Wei2, LIN Jun-Xiu2, HE Qu-She2, WU Guan-Yan2, PAN LI-Ying3, ZHAO Yu-Shan3, HE Tian3   

  1. 1. Xinjiang Institute of Chemistry, Academia Sinica, Urmaqi 830011;
    2. Xinjiang Institute of Physics, Academia Sinica, Urmuqi 830011;
    3. Xinjiang Institute of Environment Protetion
  • Received:1995-03-28 Online:1996-03-24 Published:1996-03-24

PDF (PC)

被引次数

2

摘要： 测量了低折射率液体(n>1.346)和水溶液液芯光纤的导光特性和光谱特性。研究了液芯光纤长光路法在70%乙醇-水溶液体系和50%二氧六环-水溶液体系中测定Cr(Ⅵ)、Cu(Ⅱ)的方法。液芯光纤长110cm时,测定Cr、Cu的灵敏度分别为0.052、0.017ng·mL-1;线性范围0～25、0～24ng/mL;RSD值为1.0%～4.8%.对国标GSBE50009-88样品和明胶中铬的测量值与标准值或AAS测量值吻合,回收率为94%～102%.

关键词: 液芯光纤, 水溶液, Cr(Ⅵ), Cu(Ⅱ)

Abstract: This paper presents the transmission characteristics and spectrum for liquid-core optical fiber filled with low refractive index liquids(n>1.346)and aqueous solutions.The methods are studied for the determination of Cr(Ⅵ),Cu(Ⅱ) in aqueous solutions of about 70% alcohol and 50% dioxane.With the 110 cm liquid-core optical fiber in length,the sensitivities(1/ng·mL-1)of Cr(Ⅵ), Cu(Ⅱ)are 0.052 and 0.017 respectively;the linear ranges are 0～25,0～24 ng/mLwith RSDbeing1.0%～4.8%.The Cr in the animal gum and national standard are determined with recoveries of 94%～102%.

Key words: Liquid-core optical fiber, Aqueous solution, Cr(Ⅵ), Cu(Ⅱ)

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