高等学校化学学报

高等学校化学学报 ›› 1996, Vol. 17 ›› Issue (6): 887.

• 论文 • 上一篇    下一篇

汞(Ⅱ)-硫氰酸盐-维多利亚蓝4R体系的共振发光和二级散射光谱及其分析应用

刘绍璞, 刘忠芳   

  1. 西南师范大学环境化学研究所, 重庆 630715
  • 收稿日期:1995-05-29 出版日期:1996-06-24 发布日期:1996-06-24
  • 通讯作者: 刘绍璞,男,54岁,教授.
  • 作者简介:刘绍璞,男,54岁,教授.
  • 基金资助:

    国家自然科学基金

Spectra of Resonant Luminescence and Double Scattering of Mercury(Ⅱ)-Thiocyanate-Victoria Blue 4R System and Their Analytical Application

LIU Shao-pu, LIU Zhong-Fang   

  1. Institute of Environmental Chemistry, Southwest China Normal University, Chongqing, 630715
  • Received:1995-05-29 Online:1996-06-24 Published:1996-06-24

PDF (PC)

被引次数

74

摘要： 研究了[Hg(SCN)4]-配阴离子与维多利亚蓝4R(VB4R)离子缔合反应体系的共振发光(RL)、二级散射(DS)和反二级散射(ADS)光谱,考察了它们的光谱特征、影响因素和适宜的反应条件。研究了RL、ADS和DS强度与汞(Ⅱ)浓度之间的定量关系;提出了用RL、ADS光谱测定痕量汞的方法。对汞(Ⅱ)的检测限分别为1.33ng/mL和1.83ng/mL,可用于水中μg/L级汞的测定,并对有关机理进行了初步的探讨。

关键词: 共振发光光谱, 二级散射和反二级散射光谱, 汞, 硫氰酸盐-维多利亚蓝4R体系

Abstract: This work studied the spectra of resonant luminescence(RL),double scattering(DS)and anti-double scattering(ADS)of the ion-association complex of[Hg(SCN)4]2- withVictoria blue 4R(VB 4R).The spectral characteristics,the effect factors and the optimum conditions of the reaction have been investigated.The quantitative relationships of the IRL,IADS and IDS to the concentration of mercury were established.Anew analytical method for determination of trace mercury(Ⅱ) was proposed.And we have a preliminary discussion on relative mechanism.

Key words: Resonant luminescence spectra, Double scattering and anti-double scattering spectra, Mercury, Thiocyanate-Victoria 4R system

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