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2013 | 11 | 2 | 180-188
Tytuł artykułu

Pulse perturbation technique for determination of piroxicam in pharmaceuticals using an oscillatory reaction system

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
A simple and reliable novel kinetic method for the determination of piroxicam (PX) was proposed and validated. For quantitative determination of PX, the Bray-Liebhafsky (BL) oscillatory reaction was used in a stable non-equilibrium stationary state close to the bifurcation point. Under the optimized reaction conditions (T = 55.0°C, [H2SO4]0 = 7.60×10−2 mol L−1, [KIO3]0 = 5.90×10−2 mol L−1, [H2O2]0 = 1.50×10−1 mol L−1 and j 0 = 2.95×10−2 min−1), the linear relationship between maximal potential shift ΔE m , and PX concentration was obtained in the concentration range 11.2–480.5 µg mL−1 with a detection limit of 9.9 µg mL−1. The method had a rather good sample throughput of 25 samples h−1 with a precision RSD = 4.7% as well as recoveries RCV ≤ 104.4%. Applicability of the proposed method to the direct determination of piroxicam in different pharmaceutical formulations (tablets, ampoules and gel) was demonstrated. [...]
Wydawca

Czasopismo
Rocznik
Tom
11
Numer
2
Strony
180-188
Opis fizyczny
Daty
wydano
2013-02-01
online
2012-11-29
Twórcy
  • Faculty of Pharmacy, Department of Physical Chemistry and the Instrumental Methods, University of Belgrade, 11000, Belgrade, Serbia, nata@pharmacy.bg.ac.rs
  • Institute of Nuclear Science Vinča, Radiation and Environmental Protection Department, University of Belgrade, 11001, Belgrade, Serbia
  • Faculty of Physical Chemistry, University of Belgrade, 11000, Belgrade, Serbia
  • Faculty of Physical Chemistry, University of Belgrade, 11000, Belgrade, Serbia
  • Faculty of Physical Chemistry, University of Belgrade, 11000, Belgrade, Serbia
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11532-012-0146-7
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