Highly Salicylate‐Selective Membrane Electrode Based on<i>N</i>,<i>N</i>′‐bis‐(Furaldehyde)‐Glycine Copper(II) Complex as Neutral Carrier

Chai, Yaqin; Yuan, Ruo; Dai, Jianyun; Xu, Lan; Gui, Guo-Feng; Sun, Ailing

doi:10.1081/al-200043439

Cited by 5 publications

(2 citation statements)

References 19 publications

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“…This calibration curve also showed linearity over the concentration range of 1.0×10 −5 –1.0×10 −1 M with sensitivity of 58.9±0.4 mV/pSal. The detection limit, as determined from the intersection of the two extrapolated segments of first calibration plot was found as 4.3×10 −6 M. Consequently, the electrode prepared using calix[4]arene as ionophore has shown Nernstian response competitive with electrodes based on metal complexes in literature and has a good repeatability as can be seen from small error bars in calibration curves 1, 3, 23, 24, 26–31.…”

Section: Resultsmentioning

confidence: 73%

Salicylate Ion‐Selective Electrode Based on a Calix[4]arene as Ionophore

et al. 2015

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A salicylate‐selective electrode based on calix[4]arene derivative was developed and its response characteristics were investigated. The optimum membrane composition was 1 % ionophore, 30 % PVC, 69 % DOS. The electrode exhibited a Nernstian slope of 58.8±0.5 mV/pSal in the range of 1.0×10−5–1.0×10−1 M with a detection limit of 4.3×10−6 M at pH 4.0, 20±1 °C. The potentiometric response of the electrode in the presence of different anions was investigated by the separate solution method. The lifetime was found at least 4 months, and its response time was 5–10 s. It was successfully used for the potentiometric determination of salicylate in pharmaceutical preparations.

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