Determination of Hg(II) ions in water samples by a novel Hg(II) sensor, based on calix[4]arene derivative

Metals in River Water

“…In order to examine the calix [4]arene suitability as an ion carrier for the Hg 2+ ion, Hosseini et al 588 constructed several PVC ion-selective electrodes for the wide variety of cations, including alkali, alkaline earth, and transition metal ions. The slope of the potential responses is much lower than expected for mono-, di-, and trivalent metal ions.…”

“…Hosseini et al 588 used a PVC membrane electrode for detecting Hg(II) ions based on a new cone-shaped calix [4]arene (L) as a suitable ionophore. The sensor exhibits a linear dynamic in the range of 1.0 × 10 −1 M, with a Nernstian slope of 29.4 ± 0.4 mV decade −1 and a detection limit of 4.0 × 10 −7 M. The response time is quick (less than 10 s), it can be used in the pH range of 1.5-4, and the electrode response and selectivity remained almost unchanged for about 2 months.…”

Chromium(III) Potentiometric Sensor Based on Para‐Tertiary‐Butyl Calix[4]arene

“…The response of membrane electrode depends on some parameters such as the plasticizer/PVC ratio and amount of ionophore and additive used [10][11][12][13][14][15][16]18]. Thus, the amount of membrane ingredients was optimized and the results are shown in Table 1.…”

“…It has been shown that complexation properties of calixarenes depend not only on the nature of the donor groups but also on other streochemical arrangement, which is determined by the conformation of the calixarene. Appropriately functionalized calixarenes have been used as neutral carriers in construction of ion selective electrodes [15,18].…”

The electrode modified with Langmuir–Blodgett film ofp-tert-butylcalix[4]arene derivatives with sulfur-containing functionalities for the determination of silver

“…Jain and co-workers [17] studied a Ca 2þ selective potentiometric sensor based on p-isopropylcalix [6]arene in PVC matrix. Hosseini et al [18] built a novel Hg(II) sensor, based on calix [4]arene derivative.…”