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7905761 
Journal Article 
Determination of active substances in binary mixture antiparasitic veterinary formulations by HPLC 
Kulik, A; Szczotkowska, A; Białecka, W; Podolska, M; Kwiatkowska-Puchniarz, B; Mazurek, A 
2011 
Yes 
Acta Poloniae Pharmaceutica
ISSN: 0001-6837 
68 
467-472 
English 
The purpose of the study was to develop a simple, versatile HPLC method for the identification and quantification of praziquantel and ivermectin (in Equimax) or praziquantel and abamectin (in Abamitel Plus). A satisfactory separation was obtained using the Supelcosil LC-ABZ+ column in gradient system with a mobile phase A: acetonitrile / water in 40:60 ratio and phase B: acetonitrile. The UV detection was set at 245 nm. The correlation coefficient values (> or = 0,998) for all active substances confirmed that the calibration curves (peak area vs. concentration) are linear. The results of the quantification and the statistical evaluation confirmed that the method is accurate and precise. It can also be applied to confirm the identity of benzyl alcohol, methyl p-hydroxybenzoate and propyl p-hydroxybenzoate in Abamitel Plus formulation. 
praziquantel; ivermectin; abamectin; HPLC method