无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2011, Vol. 43 ›› Issue (2): 59-.

• 论文 • 上一篇    

直接分光光度法测定高铁酸盐的含量

张煜1,2,李明玉1,2,李善得1,2,3,刘玉兵1,2,宋琳1,2   

  1. 1.暨南大学环境工程系, 广东广州 510630;2.广东省高校水土环境毒害性污染物防治与生物修复重点实验室;3.中山大学环境科学与工程学院
  • 发布日期:2011-04-19

Determination of ferrate content by direct spectrophotometry

Zhang Yu1,Li Mingyu1,Li Shande1,2,3,Liu Yubing1,Song Lin1,2    

  1. 1.Department of Enviromental Engineering,Ji′nan University,Guangzhou 510630,China;2.Guangdong Provincial Key Laboratory ofWater/Soil Toxic Pollutants Control and Bioremediation;3.School of Environmental Science and Engineering,Sun Yat-Sen University
  • Published:2011-04-19

摘要: 采用直接分光光度法对高铁酸盐含量进行了研究,改进了高铁酸盐溶液的预处理方法,考察了影响高铁酸盐溶液稳定性和测定结果的主要因素,如高铁酸盐溶液的pH、溶剂和溶液温度等。结果表明,采用G4型玻璃砂芯漏斗过滤法对高铁酸盐溶液预处理后,用质量分数为2%的次氯酸钾溶液为稀释溶剂,当温度低于20 ℃时,在其最大吸收波长505 nm处测定,可以获得准确的测定结果。

关键词: 直接分光光度法, 高铁酸盐, 次氯酸钾

Abstract: Determination of ferrate content by direct spectrophotometry was studied.Pretreatment method for ferrate solution was improved.Major factors,such as pH of ferrate solution,solvent,and solution temperature,influencing the stablity of ferrate solution and determination accuracy were investigated.Results showed that accurate result could be determined when adopting filtration method with G4 sintered glass funnel to pretreat ferrate solution,using 2% (mass fraction) potas-sium hypochlorite as thinner,at the temperature below 20 ℃,and at the maximum absorptive wavelength of 505 nm. 

Key words: direct spectrophotometry;ferrate;potassium , hypochlorite

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