Flow injection potentiometric determination of pipazethate hydrochloride

Abdel‐Ghani, Nour T.; Shoukry, A; Nashar, Rasha M. El

doi:10.1039/b007062i

Cited by 55 publications

(25 citation statements)

References 21 publications

(32 reference statements)

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“…Lignans are the major components of the active extracts of the species of Justicia, exhibiting important pharmacological properties, such as antiviral, antitumoral, anti-inflamatory, and Jiménez et al, 2001;Wang et al, 2004;Woodman et al, 2005;Woodman & Malakul, 2009 Apigenin (3) Anti-inflammatory and antitumor Wahi et al, 1974;Sawatzky et al, 2006;Cai et al, 2011 Kaempferitrin (4) Antimicrobial, antiinflammatory, regulators of macrophages, and reduce the blood glucose level J. spicigera CHCl 3 Dominguez et al, 1990;Abdel-Ghani et al, 2001;Fang et al, 2005;Cazarolli et al, 2006 Vitexin (5) Anti-inflammatory and antinociceptive Wahi et al, 1974;Sridhar et al, 2006;Gorzalczany et al, 2011 Rev. Mehta et al, 1963;Ikram & Huq, 1966;Bhalla et al, 1982;Chakravarthy et al, 1982;Jindal et al, 1988;Ismail et al, 1998;Lorenz et al, 1999;Claeson et al, 2000;Shevyakov et al, 2006;Rachana et al, 2011 Vasicinone (10) Bronchodilator J. adhatoda EtOH Amin & Mehta, 1959;Mehta et al, 1963;Ikram & Huq, 1966;Bhalla et al, 1982;Chakravarthy et al, 1982;Ismail et al, 1998;Jindal et al, 1998;Lorenz et al, 1999;Rachana et al, 2011 Allantoin (11) Anti-inflammatory and anti-ulcer Fukamiya & Lee, 1986;…”

Section: Resultsmentioning

confidence: 99%

Chemical constituents and biological activities of species of Justicia: a review

Corrêa¹,

Alcântara²

2012

Rev. bras. farmacogn.

115

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Abstract:The Acanthaceae family is an important source of therapeutic drugs, and the ethnopharmacological knowledge of this family requires urgent documentation as several of its species are near extinction. Justicia is the largest genus of Acanthaceae, with approximately 600 species. The present work provides a review addressing the chemistry and pharmacology of the genus Justicia. In addition, the biological activities of compounds isolated from the genus are also covered. The chemical and pharmacological information in the present work may inspire new biomedical applications for the species of Justicia, considering atom economy, the synthesis of environmentally benign products without producing toxic by-products, the use of renewable sources of raw materials, and the search for processes with maximal efficiency of energy.

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Section: Resultsmentioning

confidence: 99%

Chemical constituents and biological activities of species of Justicia: a review

Corrêa¹,

Alcântara²

2012

Rev. bras. farmacogn.

115

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“…18 It was found that the electrode does not respond to pH changes in the range 2.5-7.0 in batch and 2.5-6.0 in FIA conditions . FIG.…”

Section: Effect Of Phmentioning

confidence: 96%

“…17,18 The construction of a cell that contains a conventional type membrane electrode may be represented as follows: Hg, Hg 2 Cl 2 , KCl (sat. )//salt bridge//sample/membrane/internal solution, AgCl, Ag (Reference Electrode System) (Ion-Selective Membrane Electrode) Fig.…”

Section: Potentiometric Studies and Electrochemical Systemmentioning

confidence: 99%

“…The electrode body was filled with a solution that is 10 -3 mol l -1 with respect to both NaCl and BusCl and preconditioned by soaking in 10 -3 mol l -1 BusCl solution. 18 Graphite pencil rod, copper and silver buspirone coated wire electrodes (3 mm in diameter and 12 cm in length) were prepared and used. The wires were enclosed in a polyethylene tube of a proper diameter leaving 2.0 cm bared at both ends.…”

Section: Electrode Constructionmentioning

confidence: 99%

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Flow Injection Analysis with Tubular Membrane Ion‐Selective Electrode and Coated Wires for Buspirone Hydrochloride

et al. 2006

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Summary -New Plastic membrane ion-selective electrode for buspirone hydrochloride based on buspironium tetraphenylborate was prepared. The electrode exhibited mean slope of calibration graph of 58.4 mV per decade of BusCl concentration at 25°C. The electrode can be used within the concentration range 6.3 x10 -5 -10 -2 M BusCl at a pH range of 2.5-7.0. The standard electrode potentials were determined at different temperatures and used to calculate the isothermal temperature coefficient of the electrode, amounting to 0.00056 V°C -1 . The electrode showed a very good selectivity for BusCl with respect to a number of inorganic cations, sugars and amino acids. The electrode was applied to the potentiometric determination of the buspirone ion and its pharmaceutical preparation under batch and flow injection conditions. Also, buspirone was determined by conductimetric titrations. Graphite rod, copper and silver coated wire electrodes were prepared and characterized as sensors for the drug under investigation.

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“…[17][18][19] The conductivities were measured with the aid of an Engineered Systems and Designs (ESD) conductometer Model 72 (Conductance/TDS) (USA), provided with a conductivity cell of 1.000 cell constant.…”

Section: Potentiometric Studies and Electrochemical Systemmentioning

confidence: 99%

New Conventional Coated-Wire Ion-Selective Electrodes for Flow-Injection Potentiometric Determination of Chlordiazepoxide

et al. 2005

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New chlordiazepoxide hydrochloride (Ch-Cl) ion-selective electrodes (conventional type) based on ion associates, chlordiazepoxidium-phosphomolybdate (I) and chlordiazepoxidium-phosphotungstate (II), were prepared. The electrodes exhibited mean slopes of calibration graphs of 59.4 mV and 60.8 mV per decade of (Ch-Cl) concentration at 25˚C for electrodes (I) and (II), respectively. Both electrodes could be used within the concentration range 3.16 × 10 -6 -1 × 10 -2 M (Ch-Cl) within the pH range 2.0 -4.5. The standard electrode potentials were determined at different temperatures and used to calculate the isothermal coefficients of the electrodes, which were 0.00139 and 0.00093 V ˚C -1 for electrodes (I) and (II), respectively. The electrodes showed a very good selectivity for Ch-Cl with respect to the number of inorganic cations, amino acids and sugars. The electrodes were applied to the potentiometric determination of the chlordiazepoxide ion and its pharmaceutical preparation under batch and flow injection conditions. Also, chlordiazepoxide was determined by conductimetric titrations. Graphite, copper and silver coated wires were prepared and characterized as sensors for the drug under investigation.

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Flow injection potentiometric determination of pipazethate hydrochloride

Cited by 55 publications

References 21 publications

Chemical constituents and biological activities of species of Justicia: a review

Chemical constituents and biological activities of species of Justicia: a review

Flow Injection Analysis with Tubular Membrane Ion‐Selective Electrode and Coated Wires for Buspirone Hydrochloride

New Conventional Coated-Wire Ion-Selective Electrodes for Flow-Injection Potentiometric Determination of Chlordiazepoxide

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