Objective To establish a MEEKC method for determination of bufadienolides in toad venom and their Chinese medicinal preparations.Method The separation was achieved with 10mM sodium tetraborate (pH=9.2) containing n-heptane 0.81%, SDS 3.31% and n-butanol 6.61% as buffer solution at a constant voltage of 15 kV and a temperature of 40 ℃. The detective wavelength was 298 nm.Results The linear determination range was 54.8～548.0 mg/L for cinobufagin and 51.6～516.0 mg/L for recibufogenin . The average recoveries w...
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