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| 铊(I)离子选择电极动力学分析法测定超痕量铁 | |
| 引用本文： | 仰蜀薰,仝华翔. 铊(I)离子选择电极动力学分析法测定超痕量铁[J]. 化学学报, 1987, 45(7): 711-714 |
| 作者姓名： | 仰蜀薰 仝华翔 |
| 作者单位： | 郑州大学化学系 |
| 摘 要： | |
| 关 键 词： | 锌 硫酸亚铁 铁 离子选择电极 痕量分析 过氧化氢 动力学分析 铊离子 电位测定 水质水析 |
Kinetic determination of ultra trace ferrous ion with thallium (I) ion selective electrode |
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| YANG SHUXUN,TONG HUAXIANG. Kinetic determination of ultra trace ferrous ion with thallium (I) ion selective electrode[J]. Acta Chimica Sinica, 1987, 45(7): 711-714 | |
| Authors: | YANG SHUXUN TONG HUAXIANG |
| Abstract: | Fe(II) induces the reaction between Tl3+ and H2O2. The rate of reaction is linearly proportional to the concentration of Fe2+ in the range 2.5 ?10-9-2.5 ?10-8 mol dm-3 (20? and 5 ?10-9-5 ?10-8 mol dm-3 (15?. The standard deviation is less than 0.071 ?10-8. A 1000-fold excess of Zn2+, Cd2+, Mg2+, Ni2+, Pb2+, Ba2+, Ca2+, Li+, Na+, Ag+, NO3-, SO42-, AcO-, HPO42-, 500-fold excess of Al3+, Fe3+, Co2+, Hg2+ and 100-fold excess of Ti4+, Cr3+, Cu2+, Br-, Cl- can be tolerated, but reducing agents such as (NH2)2SO4, NH2OH.HCl interfered. This kinetic method was applied to determine Fe(II) in standard zinc sample and fountain water, with satisfactory results. |
| Keywords: | ZINC FERROUS SULFATE IRON ION SELECTIVE ELECTRODE TRACE ANALYSIS HYDROGEN PEROXIDE KINETIC ANALYSIS THALLIUM ION POTENTIOMETRIC DETERMINATION WATER QUALITY ANALYSIS |
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