Sensitive spectrofluorimetric determination of tizanidine in pharmaceutical preparations, human plasma and urine through derivatization with dansyl chloride


Ulu S.

LUMINESCENCE, cilt.27, sa.5, ss.426-430, 2012 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 27 Sayı: 5
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1002/bio.1367
  • Dergi Adı: LUMINESCENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.426-430
  • İstanbul Üniversitesi Adresli: Evet

Özet

A sensitive spectrofluorimetric method was developed for the determination of tizanidine in human plasma, urine and pharmaceutical preparations. The method is based on reaction of tizanidine with 1-dimethylaminonaphthalene-5-sulphonyl chloride (dansyl chloride) in an alkaline medium to form a highly fluorescent derivative that was measured at 511?nm after excitation at 383?nm. The different experimental parameters affecting the fluorescence intensity of tizanidine was carefully studied and optimized. The fluorescenceconcentration plots were rectilinear over the ranges 50500 and 20300?ng/mL for plasma and urine, respectively, detection limits of 1.81 and 0.54?ng/mL and quantification limits of 5.43 and 1.62?ng/mL for plasma and urine, respectively. The method presents good performance in terms of linearity, detection and quantification limits, precision, accuracy and specificity. The proposed method was successfully applied for the determination of tizanidine in pharmaceutical preparations. The results obtained were compared with a reference method, using t- and F-tests. Copyright (c) 2011 John Wiley & Sons, Ltd.