Lead-selective FET: complexation selectivity of ionophores embedded in the membrane

Davini, Enrico; Mazzamurro, Giuseppina; Piotto, Andrea

doi:10.1016/0925-4005(92)80368-8

Cited by 17 publications

(34 citation statements)

References 20 publications

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“…Most of these sensors suffer from sever interferences from Zn 2þ [10,17,21], Cd 2þ [6,17,20], Cu 2þ [6,8,19,20,22], Ag þ [8, 10, 11, 13 -15, 21, 23], Na þ [6,8,11,12,14,15,17,19], K þ [6, 8, 10 -15, 17 -19], Hg 2þ [4,8,22,23], Tl þ [13,23], NH 4 þ [12,13,19], and Al 3þ [17,18,22], narrow linear range [8, 10, 12, 14, 15, 17 -19, 21], and were of the traditional bulky tubular design with internal reference electrode and internal reference electrolyte solutions.…”

Section: Introductionmentioning

confidence: 99%

“…Dioxamides [3,4], 3,6-dioxaoctanedithioamide [5], calix-4-arene derivatives [6 -9], piroxicam [10], 1,10-dibenzyl-1,10-diaza-18-crown-6 [11],dicyclohexano-18-crown-6-tetrakis(2-pyridylmethyl)ethylenediamine and diaza macrocycle [12], derivatives of crown ethers [13], some fatty acids [14], tetrabenzyl pyrophosphate and diphenylphosphinic anhydride [15], 2,6-bis-pyridinecarboximide derivatives [16], cryptand (222) [17], Schiff base derivatives [18 -20], tetrakis (2-hydroxy-1-naphthyl) porphyrins [21], dithiobenzoic and mercaptobenzoic acids [22] and anthracene-9,10-dione derivatives [23] have been used as electroactive materials in lead(II) selective membrane sensors with cationic response characteristics. Most of these sensors suffer from sever interferences from Zn 2þ [10,17,21], Cd 2þ [6,17,20], Cu 2þ [6,8,19,20,22], Ag þ [8, 10, 11, 13 -15, 21, 23], Na þ [6,8,11,12,14,15,17,19], K þ [6, 8, 10 -15, 17 -19], Hg 2þ [4,8,22,23], Tl þ [13,23], NH 4 þ …”

Section: Introductionmentioning

confidence: 99%

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A Novel Flow‐Through Planar Solid Contact Sensor for the Determination of Lead with Potentiometric Anionic Response

Kamel

2007

Electroanalysis

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The construction and general performance characteristics of two poly(vinyl chloride) matrix chemical sensors for lead were described. These sensors were based on the use of ion association complexes of trihydroxoplumbate, [Pb(OH) 2þ as novel electroactive materials dispersed in o-nitrophenyloctyl ether (o-NPOE) plasticizer for ionometric sensor controls, respectively. The sensing membrane (3 Â 5 mm) is immobilized on a wafer polyimide chip (size 13.5 Â 3.5 mm) to offer a planar miniaturized design that could be easily used flow injection system. Under static modes of operation, the sensors revealed a near Nernstian response over a wide Pb 2þ ion concentration range 7.9 Â 10 À7 to 10 À4 and 3.2 Â 10 À7 to 10 À4 mol L À1 with detection limit of 100 and 45.5 ng mL À1, respectively . In flow injection potentiometry, excellent reproducibility (RSD% ¼ 0.5%), fast response, high sensitivity, high sampling rate (50 sample ] membrane based sensors, respectively. Validation of the assay method according to the quality assurance standards (range, within-day repeatability, between-day variability, standard deviation, accuracy, lower detection limit) reveals good performance characteristics and suggests application for routine determination of lead in industrial wastewaters and stack emissions of lead smelters. The results agree fairly well with data obtained by the standard atomic absorption methods.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Novel Flow‐Through Planar Solid Contact Sensor for the Determination of Lead with Potentiometric Anionic Response

Kamel

2007

Electroanalysis

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“…Previously, we have reported calix [4]arene derivatives with thioamide substituents that are selective receptors for Pb 2ϩ and Cd 2ϩ ions. These have been successfully exploited to obtain ion selectivity in chemically modified field effect transistors (CHEMFETs).…”

Section: Introductionmentioning

confidence: 99%

“…These have been successfully exploited to obtain ion selectivity in chemically modified field effect transistors (CHEMFETs). 10 All these calix [4]arene derivatives are Osubstituted at the lower rim of the calix [4]arene that is fixed in the symmetrical cone conformation. Recently, it has been shown that the conformation of the calix [4]arene can have a considerable effect on the ion selectivity.…”

Section: Introductionmentioning

confidence: 99%

“…10 All these calix [4]arene derivatives are Osubstituted at the lower rim of the calix [4]arene that is fixed in the symmetrical cone conformation. Recently, it has been shown that the conformation of the calix [4]arene can have a considerable effect on the ion selectivity. The 1,3-alternate conformers of the calixarene-crown-5 and calixarene-crown-6 derivatives show a higher K ϩ /Na ϩ and Cs ϩ /Na ϩ selectivity, respectively, than the corresponding cone conformers.…”

Section: Introductionmentioning

confidence: 99%

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Pb2+ and Cd2+ selective chemically modified field effect transistors based on thioamide functionalized 1,3-alternate calix[4]arenes

Lugtenberg¹,

Egberink²,

Engbersen³

et al. 1997

J. Chem. Soc., Perkin Trans. 2

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Novel calix[4]arenes fixed in the 1,3-alternate conformation and functionalized with thioamide groups have been synthesized and their selectivities for Pb 2ϩ and Cd 2ϩ ions in chemically modified field effect transistors (CHEMFETs) have been evaluated. The 25,27-bis(dimethylaminothiocarbonylmethoxy)-26,28-dipropoxycalix[4]arene 3 in the 1,3-alternate conformation is more selective for Pb 2ϩ than the analogous cone conformer. The 1,3-alternate calix[4]arene 8 having, in the 25-and 27-positions, two pairs of vicinal thioamide moieties at the same face of the molecule, has the highest selectivities for Cd 2ϩ reported so far.

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CHEMFET Devices for biomedical and environmental applications

et al. 1992

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Chemically‐sensitive field effect transistors (CHEMFETS), modified with, for example, an ionophore embedde in an organic membrane, or with a biological receptor, are reviewed. The sensitivity and selectivity of the devices open up many applications in the biomedical field, for example an investigating the pH, glucose level, and sodium concentration in blood, and also in environmental monitoring where low concentrations of copper, cadmium and silver in water can be detected.

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Lead-selective FET: complexation selectivity of ionophores embedded in the membrane

Cited by 17 publications

References 20 publications

A Novel Flow‐Through Planar Solid Contact Sensor for the Determination of Lead with Potentiometric Anionic Response

A Novel Flow‐Through Planar Solid Contact Sensor for the Determination of Lead with Potentiometric Anionic Response

Pb2+ and Cd2+ selective chemically modified field effect transistors based on thioamide functionalized 1,3-alternate calix[4]arenes

CHEMFET Devices for biomedical and environmental applications

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