Electroanalytical determination of vinca alkaloids used in cancer chemotherapy.
A differential pulse polarographic method has been developed for determination of the antineoplastic agents vincristine and vinblastine at ng ml level, in biological fluids such as plasma and urine. The vincristine and vinblastine are extracted from urine with Amberlite XAD-2. Linear calibration plots are obtained for both over the concentration range 0.005-5 mug ml . The relative standard deviations found were 1.7% for analysis of the pure drugs, 7.3% for urine and 8.6% for plasma.
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Department of Analytical Chemistry, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey.