A New Poly (Vinyl Chloride) Matrix Membrane Electrode for Manual and Flow Injection Determination of Pilocarpine in Some Pharmaceutical Preparations
المؤلف | Elnemma, Eman M. |
تاريخ الإتاحة | 2024-03-04T08:58:29Z |
تاريخ النشر | 1994 |
اسم المنشور | Analytical Letters |
المصدر | Scopus |
الرقم المعياري الدولي للكتاب | 0003-2719 |
الملخص | A novel pilocarpinium ion selective membrane electrode is prepared, characterized and used in pharmaceutical analysis. The electrode system incorporates a PVC membrane with pilocarpine-reineckatc ion pair complex as an electroactive material. The electrode exhibits a fast near-Nernstian response for 10−1-4x10−5M pilocarpine over the pH range 4-6.5. The electrode displays a good selectivity for pilocarpine with respect to a number of foreign cations. Pilocarpine in various pharmaccutical preparations is determined either by direct potentiometry or potentiometric titration with NaTPB using the proposed sensor. Pilocarpinereineckate membrane is also used in a flow through sandwich cell as a detector for flow injection determination of pilocarpine. Results with an average recovery of 99% and a relative standard deviation of ± 0.3% are obtained. The data compare favorably with those obtained by the standard US Pharmacopeia method. |
اللغة | en |
الناشر | Taylor and Francis Inc. |
الموضوع | flow injection analysis pharmaceutical analysis pilocarpine reineckate potentiometry PVC membrane electrode |
النوع | Article |
الصفحات | 1863-1874 |
رقم العدد | 10 |
رقم المجلد | 27 |
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