在0.4mol·dm~(-3)氯化钠溶液中。藏红T有清晰的极谱波。峰电位分别位于-0.61和-0.68V。浓度在0—6.27×10~(-5)mol·dm~(-3)间和峰电流成直线关系。在试验基础上,建立了藏红T的导数示波极谱测定法,并已用于对试剂藏红T含量的测定。本文还对藏红T极谱性质作了一些研究、表明它是一吸附波。 In 0.4mol · dm ~ (-3) sodium chloride solution. Tibetan red T has a clear polarographic wave. The peak potentials are at -0.61 and -0.68V, respectively. The concentration was in the range of 0-6.27 × 10 ~ (-5) mol · dm ~ (-3) and the peak current was linear. On the basis of the experiment, the derivative oscillopolarography was established for the determination of safranin T and has been used to determine the content of safranin T in the reagent. In this paper, some researches on the polarographic nature of triterpenoid T have been done, which shows that it is an adsorptive wave.