Journal of Fluorescence

, Volume 18, Issue 1, pp 61–74 | Cite as

Second-derivative Synchronous Fluorometric Method for the Simultaneous Determination of Cinnarizine and Domperidone in Pharmaceutical Preparations. Application to Biological Fluids

  • M. I. Walash
  • F. Belal
  • N. El-Enany
  • A. A. Abdelal
Original Paper


A rapid, simple and highly sensitive second derivative synchronous fluorometric method has been developed for the simultaneous analysis of binary mixture of cinnarizine (CN) and domperidone (DOM). The method is based upon measurement of the native fluorescence of these drugs at Δλ = 80 nm in aqueous methanol (50% V/V). The different experimental parameters affecting the native fluorescence of the studied drugs were carefully studied and optimized. The fluorescence-concentration plots were rectilinear over the range of 0.1 to 1.3 μg mL−1 and 0.1–3.0 μg mL−1 for CN and DOM, respectively with lower detection limits of 0.017 and 5.77 × 10−3 μg mL−1 and quantification limits of 0.058 and 0.02 μg mL−1 for CN and DOM. The proposed method was successfully applied for the determination of the studied compounds in synthetic mixtures and in commercial tablets. The results obtained were in good agreement with those obtained with reference methods. The high sensitivity attained by the synchronous fluorometric method allowed the determination of CN in real and spiked human plasma. The mean % recoveries in case of spiked human plasma (n = 3) were 96.39 ± 1.18 while that in real human plasma (n = 3) was 104.67 ± 4.16.


Cinnarizine Domperidone Second derivative synchronous fluorimetry Pharmaceutical preparations and biological fluids 


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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • M. I. Walash
    • 1
  • F. Belal
    • 1
  • N. El-Enany
    • 1
  • A. A. Abdelal
    • 1
  1. 1.Department of Analytical Chemistry, Faculty of PharmacyUniversity of MansouraMansouraEgypt

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