Sodium ion-selective electrode based on crown ether-phosphotungstic acid precipitates
作者： Jan Jeng , Jeng Shang Shih
DOI: 10.1039/AN9840900641
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摘要: A sodium ion-selective PVC membrane electrode based on 12-crown-4-phosphotungstic acid precipitates was prepared with dipentyl phthalate as a plasticiser. The gave linear response Nernstian slope (59 mV decade–1) within the concentration range 10–1–10–4M NaCl. exhibited comparatively good selectivity for respect to other alkali and alkaline earth metal ions. effects of pH testing solution, internal solution in composition are discussed.
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