Tetracaine – selective electrodes with polymer membranes and their application in pharmaceutical formulation control
The construction and electrochemical response characteristics of poly(vinyl chloride) (PVC) membrane electrodes for tetracaine hydrochloride (TCH) are described. The sensing membranes incorporating ion-association complexes of tetracaine cation with phosphotungstic acid (PTA) or phosphomolybdic a...
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| Format: | Article |
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Elsevier
2017
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| Online Access: | http://eprints.usm.my/37245/ |
| _version_ | 1848878139759919104 |
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| author | Hassan, Ahmed Khudhair Ameen, Suham Towfiq Saad, Bahruddin |
| author_facet | Hassan, Ahmed Khudhair Ameen, Suham Towfiq Saad, Bahruddin |
| author_sort | Hassan, Ahmed Khudhair |
| building | USM Institutional Repository |
| collection | Online Access |
| description | The construction and electrochemical response characteristics of poly(vinyl chloride)
(PVC) membrane electrodes for tetracaine hydrochloride (TCH) are described. The sensing membranes
incorporating ion-association complexes of tetracaine cation with phosphotungstic acid
(PTA) or phosphomolybdic acid (PMA) or Sodium tetraphenyl borate (NaTPB) as electroactive
materials and di-n-butyl phthalate (DBPH) or tri-n-butyl phosphate (TBP) as a plasticizer in
PVC matrixes were evaluated. The results obtained show the electrodes based on PTA or PMA
as electroactive compounds and DBPH as plasticizer with a fast, stable and near-Nernstian
response over a wide concentration range (1 · 10�5–5 · 10�2 M), with cationic slopes of 55.02
and 52.05 mV decade�1 over a pH range of (2.5–6.5). The electrodes show good discrimination
of tetracaine from several inorganic cations and sugars. The electrodes were successfully applied
for the determination of tetracaine in pharmaceutical formulations. |
| first_indexed | 2025-11-15T17:26:35Z |
| format | Article |
| id | usm-37245 |
| institution | Universiti Sains Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T17:26:35Z |
| publishDate | 2017 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | usm-372452017-10-26T06:18:42Z http://eprints.usm.my/37245/ Tetracaine – selective electrodes with polymer membranes and their application in pharmaceutical formulation control Hassan, Ahmed Khudhair Ameen, Suham Towfiq Saad, Bahruddin QD1-999 Chemistry The construction and electrochemical response characteristics of poly(vinyl chloride) (PVC) membrane electrodes for tetracaine hydrochloride (TCH) are described. The sensing membranes incorporating ion-association complexes of tetracaine cation with phosphotungstic acid (PTA) or phosphomolybdic acid (PMA) or Sodium tetraphenyl borate (NaTPB) as electroactive materials and di-n-butyl phthalate (DBPH) or tri-n-butyl phosphate (TBP) as a plasticizer in PVC matrixes were evaluated. The results obtained show the electrodes based on PTA or PMA as electroactive compounds and DBPH as plasticizer with a fast, stable and near-Nernstian response over a wide concentration range (1 · 10�5–5 · 10�2 M), with cationic slopes of 55.02 and 52.05 mV decade�1 over a pH range of (2.5–6.5). The electrodes show good discrimination of tetracaine from several inorganic cations and sugars. The electrodes were successfully applied for the determination of tetracaine in pharmaceutical formulations. Elsevier 2017-02 Article PeerReviewed Hassan, Ahmed Khudhair and Ameen, Suham Towfiq and Saad, Bahruddin (2017) Tetracaine – selective electrodes with polymer membranes and their application in pharmaceutical formulation control. Arabian Journal of Chemistry, 10 (1). pp. 1484-1491. ISSN 1878-5352 https://doi.org/10.1016/j.arabjc.2013.04.029 |
| spellingShingle | QD1-999 Chemistry Hassan, Ahmed Khudhair Ameen, Suham Towfiq Saad, Bahruddin Tetracaine – selective electrodes with polymer membranes and their application in pharmaceutical formulation control |
| title | Tetracaine – selective electrodes with polymer membranes and their application in pharmaceutical formulation control |
| title_full | Tetracaine – selective electrodes with polymer membranes and their application in pharmaceutical formulation control |
| title_fullStr | Tetracaine – selective electrodes with polymer membranes and their application in pharmaceutical formulation control |
| title_full_unstemmed | Tetracaine – selective electrodes with polymer membranes and their application in pharmaceutical formulation control |
| title_short | Tetracaine – selective electrodes with polymer membranes and their application in pharmaceutical formulation control |
| title_sort | tetracaine – selective electrodes with polymer membranes and their application in pharmaceutical formulation control |
| topic | QD1-999 Chemistry |
| url | http://eprints.usm.my/37245/ http://eprints.usm.my/37245/ |