Hydrogen ion-selective membrane electrodes based on alkyldibenzylamines as neutral carriers

Cho, Dong-Hoe; Chung, Koo‐Chun; Park, Myon-Yong

doi:10.1016/s0039-9140(98)00122-2

Cited by 18 publications

(7 citation statements)

References 12 publications

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“…The electrical resistance for the ionophore free membrane (electrode 1) was much lower than the resistance for the ionophore-containing membrane (electrode 4). On the contrary, it was stated in literature that the addition of neutral carriers such as alkyldibenzylamines had no effect on the electrical resistance of the membrane electrodes [24]. This behaviour may be attributed to the introduction of a huge neutral macrocyclic compound as calix [4]arene derivative to the membrane.…”

Section: Working Range and The Slope Of The Electrodementioning

confidence: 85%

“…4). The proposed electrode was found much more suitable than many of the other alternatives given in the literature as regard to the linear working range and slope [1,[6][7][8][9][10][11][12][13][14]16,[18][19][20][22][23][24][25]30,32,33]. The comparison of response characteristics of some different type of pH sensing electrodes together with the proposed electrode are given in Table 2.…”

Section: Working Range and The Slope Of The Electrodementioning

confidence: 91%

“…Although pH-sensitive glass electrode has distinguished response characteristics and has been in use for such a long period, it has certain setbacks such as its high resistance, fragility, its instability in hydrofluoric acid or fluoride solutions, alkaline and acid errors and its unsuitability to serve as a microelectrode for biological applications [4,5]. Accordingly, the studies to develop non-glass pH-sensitive electrodes such as solid contact electrodes (SCE's) [1,[6][7][8][9][10][11][12][13], coated wire electrodes (CWE's) [13,14], field effect transistors (FET's) [15,16], nanorod based electrodes [17,18] and polymeric membrane electrodes [19][20][21][22][23][24][25][26][27][28][29][30][31][32][33] have gained interest. Among these, PVC membrane electrodes are the preferred ones due to their low electrical resistance and ease of construction [31,32].…”

Section: Introductionmentioning

confidence: 99%

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Development of a pH sensing membrane electrode based on a new calix[4]arene derivative

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Section: Working Range and The Slope Of The Electrodementioning

confidence: 85%

Section: Working Range and The Slope Of The Electrodementioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

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Development of a pH sensing membrane electrode based on a new calix[4]arene derivative

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et al. 2015

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“…Ayr›ca, mikroelektrot olarak üretilmeye ve in situ (yerinde) çal›flmalarda kullan›lmaya uygun de¤ildirler (4,5). Bu nedenle, son y›llarda, kat›-temasl› elektrotlar (SCE'lar) (6)(7)(8)(9)(10)(11)(12), kaplanm›fl tel elektrotlar (CWE'lar) (13,14), alan etkili transistörler (FET'ler) (15,16), nano çubuk elektrotlar (17,18) ve polimerik membran elektrotlar (PME'lar) (19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30)(31)(32)(33) (10,27,28), aminler (11)(12)(13)24), pillar [5]arenler (29), ve kaliks [4]arenler (30)(31)(32)(33) gösterilebilir. Literatür incelendi¤inde, baz› ilaç etken maddelerinin voltametrik/amperometrik sensörlerde duyarl›l›k sa¤lamak amac›yla kullan›ld›¤› (36, 37), ancak, pH duyarl› potansiyometrik PVC membran elektrot haz›rlanmas›nda iyonofor olarak kullan›lmad›¤› tespit edilmifltir.…”

Section: Introductionunclassified

BAZI İÇECEKLERDE TİTRASYON ASİTLİĞİNİN TAYİNİ İÇİN ZOFENOPRİL KALSİYUMA DAYANAN pH ELEKTROT YAPIMI

Ertürün¹

2017

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ÖzBu çal›flmada, baz› içeceklerde titrasyon asitli¤inin tayini için kullan›labilecek zofenopril kalsiyum'a (ZFNCa) dayanan yeni bir PVC membran pH elektrot gelifltirilmifltir Elektrot, 20±1 °C'de, 1.7-9.5 pH aral›¤›nda, 44.1±1.7 mV/pH'lik bir e¤im göstermektedir. Ayr›ca, bu elektrodun, 15 s'lik cevap süresi ve en az 12 ayl›k ömürle, iyi bir tekrarlanabilirli¤e ve yeniden üretilebilirli¤e sahip oldu¤u gözlenmifltir. Ayn› zamanda, çeflitli iyonlar varl›¤›nda H + iyonuna karfl› iyi bir seçicilik gösterdi¤i belirlenmifltir. Önerilen elektrot kullan›larak, baz› içeceklerdeki (portakal suyu, elma suyu, gazl› içecek, bira, flarap ve sirke) titrasyon asitli¤inin tayininin yap›labilece¤i gösterilmifltir. Bulunan sonuçlar geleneksel cam pH elektrotla elde edilenlerle karfl›laflt›r›ld›¤›nda, %95 GS'de (güven seviyesi), aralar›nda anlaml› bir fark olmad›¤› belirlenmifltir. Sonuç olarak, ZFNCa'a dayanan bu elektrodun, içeceklerdeki titrasyon asitli¤i tayininde cam elektroda alternatif olarak baflar›yla kullan›labildi¤i görülmüfltür.Anahtar kelimeler: PVC membran, pH elektrot, zofenopril kalsiyum, potansiyometri, pH ölçümü, titrasyon asitli¤i CONSTRUCTION OF A pH ELECTRODE BASED ON ZOFENOPRIL CALCIUM FOR THE DETERMINATION OF TITRATABLE ACIDITY IN SOME BEVERAGES AbstractIn this study, a new PVC membrane pH electrode based on zofenopril calcium (ZFNCa) available for the determination of titratable acidity in some beverages was developed. The electrode exhibited a slope of 44.1±1.7 mV/pH in the pH range 1.7-9.5 at 20±1 °C. Furthermore, it was observed that the electrode had good repeatability and reproducibility with a response time of 15 s and a lifetime of at least 12 months. Also, it was found to display good selectivity for H + ions in the presence of various ions. The applicability of the proposed electrode for the determination of titratable acidity in some beverages (orange juice, apple juice, fizzy drink, beer, wine and vinegar) was illustrated. It was seen that there were no significant differences between the results obtained with the proposed electrode and the traditional glass pH electrode at the 95% CL (confidence level). As a consequence, it was seen that the electrode based on ZFNCa could be successfully used as an alternative for glass electrode to determine the titratable acidity in beverages.

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“…Hydrogen ion selective elec trodes were also prepared using calixarene derivatives as neutral carriers such as 5,11,17,23 tetra tert butyl 25,26,27,28 tetracyanomethoxycalix[4]arene [10], calix [4] aza crowns [11], p tert butylcalix [4]arene oxacrown 4 [1], that all showed sensitivity at pH > 2. Some hydrogen ion selective membrane electrodes based on amines as neutral carriers were also prepared with similar pH sensitivity [12][13][14][15]. 1 The article is published in the original.…”

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confidence: 99%

The behavior of polyaniline-coated PVC membrane based on 7,16-didecyl-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane for ph measurements in highly acidic media

2014

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Polyaniline (PANI) chemically coated on polyvinylchloride (PVC) membrane based on a neutral carrier 7,16 didecyl 1,4,10,13 tetraoxa 7,16 diazacyclooctadecane (Kryptofix 22 DD) as the active compo nent has been developed for determination of pH values ranging from pH 0.1-1. Effect of experimental parameters such as membrane composition, nature and amount of plasticizer, lipophilic additives and thick ness of PANI film on the potential response of the pH electrode was investigated. The electrode has an appar ent Nernstian response slope of 54.5 ± 0.4 mV/pH (at 20°C). The equilibrium water content of the electrode was determined in pure water and NaCl solution (I = 0.1 mol/kg). The electrode had low electric resistance, good potential stability and reproducibility (±1.5 mV, n = 10). It had a rapid potential response to changes of pH (15 s). The excellent performance in terms of linearity, stability and fast response makes this device suitable for pH measurements in highly acidic media.

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Hydrogen ion-selective membrane electrodes based on alkyldibenzylamines as neutral carriers

Cited by 18 publications

References 12 publications

Development of a pH sensing membrane electrode based on a new calix[4]arene derivative

Development of a pH sensing membrane electrode based on a new calix[4]arene derivative

BAZI İÇECEKLERDE TİTRASYON ASİTLİĞİNİN TAYİNİ İÇİN ZOFENOPRİL KALSİYUMA DAYANAN pH ELEKTROT YAPIMI

The behavior of polyaniline-coated PVC membrane based on 7,16-didecyl-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane for ph measurements in highly acidic media

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