Determination of in vitro dissolution profiles of amlodipine besylate and olmesartan medoxomil using a new "HPLC method"
Küçük Resim Yok
Tarih
2013
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Syscom 18 SRL
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The aim of this study was to develop an HPLC method for simultaneous determination of these active compounds and to apply this method to determine the dissolution of AML and OLM from a commercially available tablet. Valsartan (VAL) was used as an internal standard (IS). Separation of AML, OLM and VAL was performed using Phenomenex C18 column (Luna 5 ?, 100A, 250x4.6 mm; California, USA) protected with a Phenomenex C18 guard column (4.0x3.0 mm; California, USA). The chromatographic separation operated isocratically at room temperature using a mobile phase consisted of phosphate buffer (pH 4.0,0.04 mol/L):methanol: acetonitrile (40:45:15, v/v/v) delivered at a flow rate of 0.8 mL/min and injection volume was 10 ?L. The diode array detector was set at 234 nm and 205 nm wavelengths for the quantirication of AML and OLM respectively. In vitro dissolution studies revealed that 85% of the labeled amounts of AML and OLM were released within 25 min from their fixed combination tablet dosage form. The developed HPLC method was validated according to the ICH guidelines and it is proposed for dissolution studies of the combination dosage forms of these compounds.
Açıklama
Anahtar Kelimeler
Amlodipine besylate, Dissolution, HPLC method, Olmesartan medoxomil
Kaynak
Revista de Chimie
WoS Q Değeri
Scopus Q Değeri
N/A
Cilt
64
Sayı
1
