ISSN:
1618-2650
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Summary The formation of complexes amongst vanadium, o-hydroxyhydroquinonephthalein (Qnph), or/and chlorpromazine hydrochloride (CP · HCl), as a phenothiazine drug, in non-ionic surfactant micellar media was fluorometrically investigated in weakly acidic media. Fluorometric methods for the determination of vanadium and CP · HCl were respectively established by measuring the difference of relative fluorescence intensities (ΔF) between Qnph and Qnph-vanadium solutions, andΔF between Qnph-vanadyl and Qnph-vanadyl-CP · HCl solutions at an emission wavelength of 540 nm with excitation at 400 nm in the presence of polyvinyl alcohol (PVA) micelles. The calibration graphs were linear in the ranges of 0–0.5 μ vanadium and 0–220 μg CP · HCl per 10 ml of aqueous solution. The relative standard deviations (5 replicates) were 2.5% for 0.2 μg vanadium and 1.3% for 100 μg CP · HCl per 10 ml of aqueous solution, respectively. The applications to assays of vanadium in water and CP · HCl preparations were investigated, and the results were relatively good.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00572617
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