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has been cited by the following article:

• TITLE: New Approach for the Determination of Tricyclic Antidepressant Amitriptyline Using β-Cyclodextrin-PEG System via Spectrophotomerty

  AUTHORS: Pankaj Soni, Santosh K. Sar, Rajmani Patel

  KEYWORDS: Amitriptyline; PEG; β-Cyclodextrin; Spectrophotometric Determination; AMIYTP-β-Cyclodextrin Complex; Pharmaceuticals

  JOURNAL NAME: Journal of Analytical Sciences, Methods and Instrumentation, Vol.2 No.2, June 29, 2012

  ABSTRACT: A new and simple procedure for the spectrophotometric determination of the tricyclic antidepressant drug amitriptyline is proposed. The method is based on enhancement of sensitivity of the [AMIYTP]+ β-cyclodextrin and PEG molecules involved in formation of molecules inclusion complex, in presence of polyethylene glycol (PEG) medium. The mole ratio of [AMIYTP]+ β-cyclodextrin and PEG molecules in inclusion complex were determined by the curve fitting method. The value of molar absorptivity of {[AMIYTP: (β CD)] PEG} complex in term of the drug lies in rage of (2.20 - 2.23) × 104 L·mole–1·cm–1 at absorption maximum 242 nm. The slope, intercept and correlation co-efficient were found to be 14.21, 0.0046, and 0.998, respectively. The effect of analytical variables on the determination of the drug and composition of the ion associated complex are discussed in the paper. This method is applicable in the determina-tion of amitriptyline in the pharmaceutical preparations.