Potentiometric analysis of ionic surfactants by a new type of ion-selective electrode

Gerlache, Marc; Şentürk, Zühre; Viré, Jean‐Claude; Kauffmann, J.M.

doi:10.1016/s0003-2670(97)00277-8

Cited by 64 publications

(30 citation statements)

References 12 publications

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“…This is why the increased interest in analysis methods for determining these compounds in different samples can be well understood. 2 Spectrophotomety, 3,4 chemiluminescence 5 and HPLC 6 have been used for the determination of CTAB. However, the procedures used in these methods are time-consuming, expensive and involve the use of many harmful organic solvents.…”

Section: Introductionmentioning

confidence: 99%

Modified Carbon Paste Sensor for Cetyltrimethylammonium Ion Based on Its Ion-associate with Tetrachloropalladate(II)

Ibrahim

Khorshid

2007

ANAL. SCI.

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Experimental ApparatusPotentiometric measurements in a batch mode were carried out at 25 ± 1˚C using a Jenway 3010 digital pH/mV meter with a surfactant-CMCPE sensor in conjunction with an Ag/AgCl reference electrode. A Techne circulator thermostat, Model C-100 (Cambridge, England), was used to control the temperature A comparative study was made between developed chemically modified carbon paste electrodes and PVC membrane electrodes for the cationic surfactant cetyltrimethylammonium bromide (CTAB). The carbon paste electrode modified with cetyltrimethylammonium-tetrachloropalladate(II) (CTA-TClP) provides a more sensitive and stable device than that shown by electrodes with an inner reference solution. The best performance was obtained by an electrode based on the paste containing 3.6 wt% CTA-TCIP, 1.8 wt% ethylhexadecyldimethylammonium bromide, 37.6 wt% graphite and 57 wt% tricresyl phosphate. The sensor exhibited a Nernstian response for CTAB over a wide concentration range of 3.5 × 10 -7 to 1.0 × 10 -3 M with a detection limit of 2.0 × 10 -7 M between pH 2.7 and 8.2 with a fast response time of ≤15 s. The electrode showed excellent selectivity for CTAB over a large number of ions. Interferences caused by common cationic surfactants have been investigated in simulated mixtures containing high concentration levels of interfering surfactants, and the sensor was found to be tolerant against these compounds.

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Section: Introductionmentioning

confidence: 99%

Modified Carbon Paste Sensor for Cetyltrimethylammonium Ion Based on Its Ion-associate with Tetrachloropalladate(II)

Ibrahim

Khorshid

2007

ANAL. SCI.

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“…Traditional analysis methods of anionic surfactant concentration require tedious procedures (such as liquid and gas chromatography), or the use of large amounts of undesired solvents (such as chloroform in the spectrophotometric "Methylene Blue" method) [1][2][3][4]. An alternative to these methods is the use of electrodes (such as ion-selective electrodes [5][6][7][8][9][10] or ion-selective field-effect transistors [11][12][13][14][15]). Potentiometric methods using ion-selective electrodes have found wide applications in diverse fields of analysis for being of low cost, sensitive, and applicable over a wide range of experimental conditions [16].…”

Section: Introductionmentioning

confidence: 99%

Ion-Selective Electrode for Anionic Surfactants Using Hexadecyl Trimethyl Ammonium Bromide-Sodium Dodecylsulfate as an Active Ionophore

Wang

et al. 2011

International Journal of Electrochemistry

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The construction and characteristic performance of PVC membrane electrode responsive to sodium dodecylsulfate (SDS) are described in this paper. The electrode is based on hexadecyl trimethyl ammonium bromide-Sodium dodecylsulfate (CTA DS ) ion pair as ionophore in PVC membrane, which displays a Nernstian slope of 58 0.9 mV/decade in a 5.0 10 6 to 2.5 10 3 mol L 1 concentration range and a limit of detection of 2.9 10 6 mol L 1 . The electrode can be used for 3 months without showing significant changes in the value of slope or working range. Also the electrode has wide pH range of application and short response time. The electrode shows a selective response to SDS and a poor response to common inorganic anions. The selective sequence found was SDS HCO3 CH3COO Cl I NO3 ¤ Br F CO3 2 C6H5O7 3 C2O4 2 SO4 2 C4H4O6 2 SO3 2 PO4 3 . The potentiometric selectivity coefficients determined are indicating that common anions would not interfere in the SDS determination. The electrode has been utilized as an end point indicator electrode for potentiometric titration involving hyamine as titrant.

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“…Using different types of ion-selective electrodes (ISEs) as indicators for surfactant analysis could be overcome most of these limitations [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

New Screen‐Printed Ion‐Selective Electrodes for Potentiometric Titration of Cetyltrimethylammonium Bromide in Different Civilic Media

et al. 2010

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The performance of home-made printed carbon ink in the fabrication of a simple screen-printed carbon paste electrodes (SPCPEs) was studied. Such electrodes are applied for the potentiometric titration and hence determination of cetyltrimethylammonium bromide (CTAB) in different pharmaceuticals and water samples. The performances of the new screen printed electrodes towards CTAB are compared with those for carbon paste, coated-wire, coated graphite and polyvinyl chloride electrodes. SPCPEs have been successfully used for the potentiometric titration of CTAB in the analytical grad solutions, with a potential jump amounts to 1050 mV. The effect of plasticizer type, carbon content, binding materials, printing ink formulation, response time and printing process are optimized. The method is applied for pharmaceutical preparations with a percentage recovery of 99.20 % and RSD = 0.45. The electrodes passes a near-Nernstian cationic slope of 58.70 AE 1.3 and 56.32 AE 2.4 mV and lower detection limit of 6.8 10 À7and 5.80 10 À7 M with a reproducibility of 0.145 and 3.25 % and response time of about 3 s and exhibit adequate shelf-life of 6 and 2 months for SPCPE and CPE, respectively. The frequently used CTAB of analytical and technical grade as well as different water samples has been successfully titrated and the results obtained agreed with those obtained with commercial electrode and standard two phase titration method. The sensitivity of the proposed method is comparable with the official method indicating its possibility to be used in field measurements.

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Potentiometric analysis of ionic surfactants by a new type of ion-selective electrode

Cited by 64 publications

References 12 publications

Modified Carbon Paste Sensor for Cetyltrimethylammonium Ion Based on Its Ion-associate with Tetrachloropalladate(II)

Modified Carbon Paste Sensor for Cetyltrimethylammonium Ion Based on Its Ion-associate with Tetrachloropalladate(II)

Ion-Selective Electrode for Anionic Surfactants Using Hexadecyl Trimethyl Ammonium Bromide-Sodium Dodecylsulfate as an Active Ionophore

New Screen‐Printed Ion‐Selective Electrodes for Potentiometric Titration of Cetyltrimethylammonium Bromide in Different Civilic Media

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