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Czasopismo
2013 | 11 | 11 | 1830-1836
Tytuł artykułu

Flow-injection spectrophotometric determination of dipyrone in pharmaceutical formulations using a solid-phase reactor with copper(II) phosphate

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
In this work, a flow-injection spectrophotometric method for dipyrone determination in pharmaceutical formulations was developed. Dipyrone sample solutions were injected into a carrier stream of deionized water and the reaction was carried out in a solid-phase reactor (12 cm, 2.0 mm i.d.) packed with Cu3(PO4)2(s) entrapped in a matrix of polyester resin. The Cu(II) ions were released from the solid phase reactor by the formation of Cu(II)-(dipyrone)n complex. When the complex is released, it reacts with 0.02% m/v alizarin red S in deionized water to produce a Cu(VABO3)3 complex whose absorbance was monitored at 540 nm. The calibration graph was linear over the range 5.0×10−5–4.0×10−4 mol L−1 with a detection limit of 2.0×10−5 mol L−1 and relative standard deviation for 10 successive determinations of 1.5% (2.0×10−4 mol L−1 dipyrone solution). The calculated sample throughput was 60 h−1. The column was stable for at least 8 h of continuous use (500 injections) at 25°C. Pharmaceutical formulations were analyzed and the results from an official procedure measurement were compared with those from the proposed FIA method in order to validate the latter method. [...]
Wydawca

Czasopismo
Rocznik
Tom
11
Numer
11
Strony
1830-1836
Opis fizyczny
Daty
wydano
2013-11-01
online
2013-08-25
Twórcy
  • Departamento de Química, Universidade Federal do Paraná, CEP 81531-990, Curitiba - PR, Brazil
  • Departamento de Química, Universidade Federal de São Carlos, CEP 13565-905, São Carlos - SP, Brazil
  • Departamento de Química, Universidade Federal do Paraná, CEP 81531-990, Curitiba - PR, Brazil, luiz1berto@ufpr.br
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11532-013-0312-6
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