Novel Imidazole PVC-Based Sensor Based on a Thiopyrilium Compound

Abdi, Mahnaz M.; Pirelahi, Hooshang; Mouradzadegun, Arash; Sohrabi, Mahmoud Reza

doi:10.2116/analsci.19.1387

Cited by 6 publications

(5 citation statements)

References 24 publications

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“…Firstly, by considering the investigation, which had been conducted on the optimization of the membrane ingredients and, secondly, by selecting an appropriate plasticizer and a proper working pH range, the electrode presented a nice Nernstian behavior in a relatively wide concentration range? Additionally, the interfering of the other imidazole derivatives, unlike in the previous reported studies, 23,24 were diminished. In this work, according to the high sensitivity of the designed sensor and the selected pH, a mechanism based on the selectivity of the membrane toward His + derivatives has been described.…”

Section: Introductioncontrasting

confidence: 65%

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PVC‐Based on Thiopyrilium Derivatives Membrane Electrodes for Determination of Histamine

Javanbakht

Mohammadi

Ganjali

et al. 2007

J Chinese Chemical Soc

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This study describes novel histamine-selective electrodes, having their basis on thiopyrilium (TP) derivatives as suitable ionophores. The electrodes were prepared by incorporating the TP derivatives into plasticized poly(vinyl chloride) (PVC) membranes. These electrodes demonstrate high selectivity as far as the histamine response is considered, as compared with many common inorganic anions and other kinds of amino acids. The influence of membrane composition, pH and the effect of lipophilic cationic and anionic additives on the response characteristics of the electrode were investigated. The resulting sensor based on 2,6-bis(4-dimethyl amino phenyl)-4-phenyl thiopyrilium perchlorate (TP4) responds to histamine in a wide concentration range from 5.0 × 10 -6 to 1.0 × 10 -1 M with a slope of 54.8 ± 0.6 mV decade -1and detection limit of 3.0 m mol L -1 (~0.3 ppm). The electrode illustrates fast response time and good long-term stability (more than 2 months). The ability to design histamine-selective electrodes based on new thiopyrilium derivatives and both to alter selectivity and improve the response characteristics through structural changes to the charged ionophore, has been investigated. The prepared electrode was used for the determination of histamine in a synthetic human serum sample. Consequently, satisfactory recovery results were obtained over a wide concentration range of histamine.

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Section: Introductioncontrasting

confidence: 65%

“…22 This is most probably due to the soft-soft electrostatic interactions of the S + group of the ionophore and these anions. With imidazole, 23,24 this is likely because of the reaction of the ionophore with the imidazole molecule forming a dication, thus, presenting a slope of 25.5 mV decade -1 .…”

Section: Introductionmentioning

confidence: 99%

PVC‐Based on Thiopyrilium Derivatives Membrane Electrodes for Determination of Histamine

Javanbakht

Mohammadi

Ganjali

et al. 2007

J Chinese Chemical Soc

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“…Histamine [265], histidine [266], imidazole [267,268], ketamine [269], ascorbic acid [270], oxalate [271], triamterene [272], naphazoline [273], valproate [274], cystein [275], theophiline [276], sulfosalicylic acid [277], thiosalicylic acid [278], salicylate [279,280], ketoconazole [281], clotrimazole [282], cimetidine [283], diclofenac [284], atenolol [285], picrate [286], linear alkylbenzene sulfonate [287,288], sodium dodecylsulfate [289][290][291], dodecylbenzene sulfonate [292] aresepecies the sensors of which have been introduced by Iranian researchers.…”

Section: Selective Electrodes For Drugs and Organic Speciesmentioning

confidence: 99%

“…As it is seen from Table 3, these sensors were based on ionophores like different complexes of iron(III) [265], iron(II) [270], copper(II) [271], zirconyl(IV) [277], nickel(II) [279], tin(IV) [280], lead(II) [275], aluminum(III) [278] and manganese(III) [265], 2,4,6- ClO 4 -, SCN -PME/ CGE [279] triphenylthiopyrilium perchlorate [267], 4-methyl-2,6-diphenylthiopyrylium [268], ion-exchanger sites [269], tetraphenylborate ion [272], tetraphenylborate [273], conducting polypyrrole films [274], 2,6-bis(phenyl)-4(phenyl) 3H-thiopyran [276], phthalocyanine [278], ketoconazoletetraphenyl borate ion pair [281], phosphomolybdate [282], phospoho tungstate [283], hexadecylpyridinium bromide [284], tetrakis(p-chlorophenyl) borate [285], polypyrrole [287,290], and hyamine [288], polyaniline-dodecylsulfate [289], cetylpyridinium cation [291], polyaniline [292], which have different natures and hence different selection mechanisms.…”

Section: Selective Electrodes For Drugs and Organic Speciesmentioning

confidence: 99%

One decade of research on ion-selective electrodes in Iran (1996–2006)

Ganjali

Norouzi

Faridbod

et al. 2007

JICS

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This review presents a general overview about the development of ion-selective electrodes in Iran during the past decade (1996)(1997)(1998)(1999)(2000)(2001)(2002)(2003)(2004)(2005)(2006). All of the reported ion-selective sensors (for cations, anions and organic species) are cited in this review. Sensors for 39 cations, 12 anions, and 23 organic compounds and drugs have been reported in this reivew. Some of the main group cations (e.g. beryllium) as well as most of the lanthanide ion (i.e., presidium, erbium, lutetium, cerium, neodymium, europium, gadolinium, terbium, dysprosium, holmium, ytterbium, and thulium) sensors have been reported for the first time. It is noticable that the best reported sensors for HPO 4 2-, SO 4 2-, Cl -, ClO 4 -, Br -, and I 3 -have been designed and constructed by the Iranian researchers.

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“…The response time (95% of the final signal; T 95 ), which is one of the important factors for ISEs, was shorter then 10 s, when changing the concentration of silver ion from 1.0 × 10 -3 to 1.0 × 10 -2 mol dm -3 . It is known [19][20][21] slope of these derivatives based electrodes is considered to be due to the low solubility to a membrane solvent. It is therefore, expected that the lowering can be improved by introducing a lipophilic substituent into the derivatives.…”

Section: Fundamental Properties Of Electrodesmentioning

confidence: 99%

Potentiometric Performance of Silver Ion-Selective Electrodes Based on Tridentate Schiff Base Derivatives

et al. 2004

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The electrode membrane solvent, o-nitrophenyloctyl ether (o-NPOE), and the anionic excluder, potassium tetrakis (4-chlorophenyl) borate (KTpClPB), were purchased from Tokyo Technology, Omiya, Asahi, Japan To examine the directivity for improving the silver ion discrimination ability of a Schiff base, three kinds of tridentate ligands were synthesized and compared with the similar quadridentate ligand as the silver ionophore. Among the Schiff base derivatives tested, 3-(2-pyridylethylimino)-2-butanoneoxime, having one oxime and a pyridine substituent, was found to be the best ionophore for a silver-ion electrode. The electrode based on this derivative exhibited good silver-ion selectivity, -log K pot Ag + ,K + = 3.8, comparable to that of a quadridentate Schiff base, N,N′-bis(2′-hydroxyimino-1′-phenylpropyleden)-1,3-propanediamine, reported previously, except for a pseudo Nernstian response (35.6 mV decade -1 ) with a wide silver-ion activity change in the activity change from 5.0 × 10 -7 to 7.9 × 10 -2 mol dm -3 .

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Novel Imidazole PVC-Based Sensor Based on a Thiopyrilium Compound

Cited by 6 publications

References 24 publications

PVC‐Based on Thiopyrilium Derivatives Membrane Electrodes for Determination of Histamine

PVC‐Based on Thiopyrilium Derivatives Membrane Electrodes for Determination of Histamine

One decade of research on ion-selective electrodes in Iran (1996–2006)

Potentiometric Performance of Silver Ion-Selective Electrodes Based on Tridentate Schiff Base Derivatives

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