To investigate the effects of human soluble TRAIL(sTRAIL) on cell growth and apoptosis of hepatocellular carThe electrochemical oxidation of aqueous phenol at pure carbon nanotube electrode has been studied by cyclic voltammetry.The results have shown that in the potential region of water stability,fine oxidation current curve can be obtained.The electricity of oxidation peak is partly linear with phenol concentration.Comparing with traditional carbon electrode,better results have been obtained with the pure carbon nanotube electrode.Depending on it,it is possible to obtain the complete combustion of phenol to CO_2,which can avoid electrode fouling and poor repeatability.