| 以单环有机锡配合物为载体的水杨酸根阴离子选择电极的研究 |
| Salicylate Anion-selective Electrodes Based on Cyclic Organotin Complexes as Carriers |
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| 摘要: |
| 关键词: 单环有机锡(Ⅳ))配合物 水杨酸根 阴离子选择性电极 |
| 基金项目: |
| Abstract: Two new cyclic pentacoordinative organotin(Ⅳ) complexes, 2,4-dihydroxyacetophenone tribenzyltin(HAPTBT) and 2,4-dihydroxyacetophenone triphenyltin(HAPTPT) were synthesized and used as anion ionophore for PVC membrane electrode. The new electrodes exhibit specificity selectivity for salicylate. The electrode based on HAPTBT as a neutral carrier displays a highly potentiometric response to salicylate and an anti-Hofmeister selectivity sequence in the following order: Sal- ＞ SCN- ＞ I- ＞ NO2- ＞ Br- ＞ Cl- ＞ ClO4- ＞ NO3- ＞ SO42-. The electrode has the advantages of fast response, stability and reproducibility, simplicity. The response mechanism is discussed in view of UV spectroscopy technique. The results show that there are close relationship between the potentiometric response characteristics and structure of organotin(Ⅳ) complexes. The electrode was applied to medicine analysis with satisfactory results. |
| Keywords: cyclic organotin(Ⅳ) complexes salicylate anion-selective electrodes |
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| 申有名,李桂芝,张春香,李志强.以单环有机锡配合物为载体的水杨酸根阴离子选择电极的研究[J].无机化学学报,2006,22(4):748-752. |
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