The dynamic surface tensions(DST) of aqueous cetylpyridinium bromide(CPB)solutions at various concentrations was measured, by using the drop volume method.
滴体积法测定了十六烷基溴化吡啶（CPB）水溶液的动态表面张力。
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Conclusion : The method is simple, rapid, specific and is suitable for the determination of vitamin C and its related substances in compound cetylpyridinium chloride buccal tablets.
The floatation separation behavior of Pt(IV) by KBr-Cetylpyridinium bromide System in the presence of NaNO3 and the conditions for the separation of Pt(IV) from other metal ions were studied.