Chemically Modified Carbon Paste Electrode for the Potentiometric Determination of Dicylomine Hydrochloride in Batch and in FIA Conditions
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- IBRAHIM H.
- Chemistry Department, Faculty of Science, Cairo University
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- ISSA Y. M.
- Chemistry Department, Faculty of Science, Cairo University
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- ABU-SHAWISH Hazem M.
- Chemistry Department, Faculty of Science, Cairo University
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A carbon-paste electrode for dicyclomine hydrochloride (DcCl) was prepared and fully characterized in terms of composition, life span, usable pH range and temperature. The electrode was applied to the potentiometric determination of dicylominium ion in its pure state and in pharmaceutical preparations in batch and flow injection conditions and in biological fluids using standard additions method. The electrode is based on a mixture of two ion-exchangers, namely, dicyclominium-phosphomolybdate and dicylominium-tetraphenylborate, dissolved in dioctyl phthalate as pasting liquid. The modified electrode showed a near-Nernstian slope of 58 ± 2 mV over the concentration range of 1.2 × 10-5 - 1.6 × 10-2 M with an average recovery of 97 - 102% and a RSD of 0.090 - 1.00. The electrode exhibits good selectivity for DcCl with respect to a large number of inorganic cations, sugars, amino acids and organic substances of biological fluids. Potentiometric titrations of DcCl with several titrants have been monitored using this modified carbon paste electrode as an end-point indicator electrode.
収録刊行物
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- Analytical Sciences
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Analytical Sciences 20 (6), 911-916, 2004
社団法人 日本分析化学会
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詳細情報 詳細情報について
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- CRID
- 1390282679234411520
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- NII論文ID
- 130004440951
- 10013104885
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- NII書誌ID
- AA10500785
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- COI
- 1:CAS:528:DC%2BD2cXlt1Klt7s%3D
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- ISSN
- 13482246
- 09106340
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- NDL書誌ID
- 6970416
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- PubMed
- 15228109
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可