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Analytical Letters Volume 29, 1996 - Issue 5
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Original Articles

First-Derivative Spectrophotometric Assay of Timolol Maleate in Ophthalmic Solutions

Maria Iněs R.M. Santoro Departamento de Farmácia – Faculdade de Ciěncias Farmacëuticas, Universidade de São Paulo, Caixa Postal 66355, CEP 05389-970, São Paulo, Brasil
,
Hyun Sun Cho Departamento de Farmácia – Faculdade de Ciěncias Farmacëuticas, Universidade de São Paulo, Caixa Postal 66355, CEP 05389-970, São Paulo, Brasil
&
Erika R.M. Kedor-Hackmann Departamento de Farmácia – Faculdade de Ciěncias Farmacëuticas, Universidade de São Paulo, Caixa Postal 66355, CEP 05389-970, São Paulo, Brasil
Pages 755-762 | Received 22 Jun 1995, Accepted 20 Nov 1995, Published online: 22 Aug 2006

Citations (13)

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Gharam Ibrahim Mohammed, Hossam Metwally Nassef, Abdulaziz.Saleh Bashammakh, Zainab.Mohammad Saigl & Mohammad Soror El-Shahawi. (2022) Analysis of β-blocker timolol maleate drug residues in wastewater and biological fluids using differential pulse – anodic stripping voltammetry. International Journal of Environmental Analytical Chemistry 102:3, pages 633-649.
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Maria L. Satuf, Juan C. Robles, Héctor C. Goicoechea & Alejandro C. Olivieri. (1999) Simultaneous Determination of Timolol Maleate and Pilocarpine Hydrochloride in Ophthalmic Solutions by First Derivative UV Spectrophotometry and PLS-1 Multivariate Calibration. Analytical Letters 32:10, pages 2019-2033.
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Articles from other publishers (11)

G.I. Mohammed, N.H. Khraibah, A.S. Bashammakh & M.S. El-Shahawi. (2018) Electrochemical sensor for trace determination of timolol maleate drug in real samples and drug residues using Nafion/carboxylated-MWCNTs nanocomposite modified glassy carbon electrode. Microchemical Journal 143, pages 474-483.
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Taher Alizadeh, Mohammad Reza Ganjali, Faride Rafiei & Maedeh Akhoundian. (2017) Synthesis of nano-sized timolol-imprinted polymer via ultrasonication assisted suspension polymerization in silicon oil and its use for the fabrication of timolol voltammetric sensor. Materials Science and Engineering: C 77, pages 300-307.
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Nasrin Shadjou, Mohammad Hasanzadeh, Lotfali Saghatforoush, Robab Mehdizadeh & Abolghasem Jouyban. (2011) Electrochemical behavior of atenolol, carvedilol and propranolol on copper-oxide nanoparticles. Electrochimica Acta 58, pages 336-347.
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Jianshe Huang, Jinying Sun, Xiaoguang Zhou & Tianyan You. (2007) Determination of Atenolol and Metoprolol by Capillary Electrophoresis with Tris(2,2′-bipyridyl)ruthenium(II) Electrochemiluminescence Detection. Analytical Sciences 23:2, pages 183-188.
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S.M. Al-Ghannam. (2006) A simple spectrophotometric method for the determination of β-blockers in dosage forms. Journal of Pharmaceutical and Biomedical Analysis 40:1, pages 151-156.
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Abdel-Aziz Y. El-Sayed & Najeb A. El-Salem. (2005) Recent Developments of Derivative Spectrophotometry and Their Analytical Applications. Analytical Sciences 21:6, pages 595-614.
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C Bosch Ojeda & F Sanchez Rojas. (2004) Recent developments in derivative ultraviolet/visible absorption spectrophotometry. Analytica Chimica Acta 518:1-2, pages 1-24.
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Hanna Hopkała, Arkadiusz Pomykalski, Tomasz Mroczek & Marzena Ostęp. (2003) Densitometric and videodensitometric TLC determination of timolol and betaxolol in ophthalmic solutions. Journal of Planar Chromatography – Modern TLC 16:4, pages 280-285.
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Magda M. Ayad, Abdalla Shalaby, Hisham E. Abdellatef & Mervat M. Hosny. (2003) Spectrophotometric methods for determination of enalapril and timolol in bulk and in drug formulations. Analytical and Bioanalytical Chemistry 375:4, pages 556-560.
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Lories I. Bebawy. (2002) Application of TLC-densitometry, first-derivative UV-spectrophotometry and ratio derivative spectrophotometry for the determination of dorzolamide hydrochloride and timolol maleate. Journal of Pharmaceutical and Biomedical Analysis 27:5, pages 737-746.
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Adela Arranz, Iñigo Dolara, Susana Fernández de Betoño, Jose Marı́a Moreda, Adolfo Cid & Juan Francisco Arranz. (1999) Electroanalytical study and square wave voltammetric techniques for the determination of β-blocker timolol at the mercury electrode. Analytica Chimica Acta 389:1-3, pages 225-232.
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