Ardakani Mohammad Mazloum, Ensafi Ali Asghar, Salavati Niasari Mohammad, Mirhoseini Hossain
Department of Chemistry, Kashan University, Kashan, Iran.
Anal Sci. 2003 Aug;19(8):1187-90. doi: 10.2116/analsci.19.1187.
The performance of octahydroxycalix[4]arene derivative used as a neutral carrier for silver polymeric membrane electrode was studied. The sensor gave a good Nernstian response of 58 +/- 1 mV per decade for silver ion in the activity range 3.3 x 10(-6) to 3.3 x 10(-2) M Ag+. The limit of detection reached 2.1 x 10(-6) M Ag+ and exhibited high selectivity for silver ion against the alkali, alkaline earth and transition metal ions. The sensor can be used in wide pH range from 1.5 to 6.5. The response time of the sensor is less than 20 s. The potentiometric sensor was used as the indicator electrode in the titration of Ag+ ions by sodium chloride solution.
研究了用作银聚合物膜电极中性载体的八羟基杯[4]芳烃衍生物的性能。该传感器对银离子在3.3×10⁻⁶至3.3×10⁻² M Ag⁺的活性范围内给出了良好的能斯特响应，每十倍浓度变化为58±1 mV。检测限达到2.1×10⁻⁶ M Ag⁺，并且对银离子相对于碱金属、碱土金属和过渡金属离子表现出高选择性。该传感器可在1.5至6.5的宽pH范围内使用。传感器的响应时间小于20秒。该电位传感器用作氯化钠溶液滴定Ag⁺离子时的指示电极。
