Cetyltrimethylammonium-Selective PVC Electrode Based On Its Trinitrobenzene Sulfonate Ion-Pair

Issa, Y. M.; Badawy, Sayed S.; El-Hawary, Waheed F.; Ashour, M. S.

doi:10.1002/(sici)1521-4109(199910)11:14<1063::aid-elan1063>3.0.co;2-o

Cited by 6 publications

(2 citation statements)

References 18 publications

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“…Potentiometric surfactant selective electrodes can directly measure and monitor the concentration of unassociated surfactant unimers in the presence or absence of additives, provided the membrane works in the direct mode under good statistical and calibrated control [9,10]. However, the indirect mode via potentiometric titrations is the best choice when measuring the total amount of surfactant present in solution [11][12][13]. Regarding structural information, techniques such as neutron and X-ray scattering have been gaining space in several branches of science since the last decades [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Multiple thin film formation from dilute mixtures of polyethyleneimine (PEI) and cetyltrimethylammonium bromide (CTAB)

Comas-Rojas

Fernández-Catá

Edler

et al. 2009

Journal of Colloid and Interface Science

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Section: Introductionmentioning

confidence: 99%

Multiple thin film formation from dilute mixtures of polyethyleneimine (PEI) and cetyltrimethylammonium bromide (CTAB)

Comas-Rojas

Fernández-Catá

Edler

et al. 2009

Journal of Colloid and Interface Science

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“…Hence, interest in the potentiometric determination of cationic surfactants with ionselective electrodes has grown in the past three decades. 7 Some PVC membrane electrodes have been proposed for CTAB, based on ion-exchangers, such as cetyltrimethylammoniumdodecylsulfate, 8 cetyltrimethylammonium-phosphotungstate, 9 and cetyltrimethylammonium-trinitrobenzenesulfonate, 10 or neutral carriers as dibenzo-18-crown-6. 11 Active materials, such as hexadecylbenzenesulfonate with teraphenylborate 12 and fullerene, 13 have also been used in ion-selective electrodes for CTAB.…”

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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New Ion‐Pair Based All‐Solid‐State Surfactant Sensitive Sensor for Potentiometric Determination of Cationic Surfactants

Matešić-Puač

Sak-Bosnar²,

Bilić

et al. 2004

Electroanalysis

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Cationic surfactants of different types were determined using a few potentiometric sensors based on ion-pair complexes (dodecyldimethylbenzylammonium dodecylsulfate, dodecylmethylbenzylammonium dodecylbenzensulfonate, tetrahexadecylammonium dodecylsulfate and Hyamine (benzethonium dodecylsulfate)) as sensing materials. The response of the all-solid state surfactant sensitive electrode based on a Teflonized graphite conducting substrate, coated with a PVC membrane containing sensing material, was investigated in the solutions of Hyamine and hexadecyltrimethylammonium ion in the concentration range from 1 mM to 10 mM. Potentiometric surfactant cation titration has been performed using sodium dodecylsulfate as titrant and an ion-pair-based surfactant sensitive electrode as a potentiometric indicator. Several commercial surfactant products have also been titrated and the results were compared with those obtained with two-phase standard titration method.

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Cetyltrimethylammonium-Selective PVC Electrode Based On Its Trinitrobenzene Sulfonate Ion-Pair

Cited by 6 publications

References 18 publications

Multiple thin film formation from dilute mixtures of polyethyleneimine (PEI) and cetyltrimethylammonium bromide (CTAB)

Multiple thin film formation from dilute mixtures of polyethyleneimine (PEI) and cetyltrimethylammonium bromide (CTAB)

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

New Ion‐Pair Based All‐Solid‐State Surfactant Sensitive Sensor for Potentiometric Determination of Cationic Surfactants

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