Towards an ideal method for analysis of lisinopril in pharmaceutical formulations using a tris(2,2′-bipyridyl)-ruthenium(ii)-peroxydisulfate chemiluminescence system in a two chip device

Haider A J Al Lawati*, Mahmood Al-Azwani, Gouri B. Varma, Fakhr Eldin O Suliman, Salma M Z Al Kindy

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

A novel, rapid, selective and sensitive method has been developed for analysis of lisinopril (LIS) in pharmaceutical formulations using a tris(2,2′-bipyridyl)-ruthenium(ii) (Ru(bipy) 3 2+) peroxydisulfate chemiluminescence (CL) system in a two chip device. The parameters that influence the CL signal intensity were carefully optimized. These include pH, flow rates and concentration of reagents used. Under optimum conditions, a linear calibration curve between 0.25 and 50.0 μg mL -1 was obtained. About 180 samples were analyzed per hour while the detection limit was found to be 0.067 μg mL -1. The method was applied for analysis of LIS in pharmaceutical products and was found to be free from interferences of acid-induced degradation (AID) products and other ingredients usually present in these preparations.

Original languageEnglish
Pages (from-to)773-779
Number of pages7
JournalAnalytical Methods
Volume4
Issue number3
DOIs
Publication statusPublished - Mar 2012

ASJC Scopus subject areas

  • Analytical Chemistry
  • Engineering(all)
  • Chemical Engineering(all)

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