Fluorimetric determination of chloroxine using manual and flow-injection methods.
A reliable and highly sensitive method is described for the determination of chloroxine in pharmaceutical preparations. It involves the formation of a complex between chloroxine and aluminum(III) in a micellar medium. The complex is a very fluorescent species, and there is a linear relationship between chloroxine concentration and fluorescence intensity over the range 2.0 x 10(-8)-5.1 x 10(-5) mol l-1. The limit of detection is 5 x 10(-9) mol l-1. The method can be easily adapted to a flow system using a three-channel manifold, the peak height being proportional to the chloroxine concentration over the range 5.6 x 10(-7)-5.6 x 10(-5) mol l-1. Manual and flow-injection procedures permit the determination of chloroxine in the presence of chlorquinaldol, and have been successfully applied to the determination of chloroxine in pharmaceutical preparations.
Pérez-Ruiz
T
T
Department of Analytical Chemistry, Faculty of Chemistry, University of Murcia, Spain.
Martínez-Lozano
C
C
Tomás
V
V
Carpena
J
J
D000535:Aluminum / Q000737:chemistry*; D000563:Amebicides / Q000032:analysis*; D002739:Chloroquinolinols / Q000032:analysis*; D002750:Chlorquinaldol / Q000032:analysis; D005470:Fluorometry / Q000379:methods; D012680:Sensitivity and Specificity
D000563:Amebicides; D002739:Chloroquinolinols; C004357:chloroxine; D000535:Aluminum; D002750:Chlorquinaldol