WO_3超微电极及其在心肌细胞分析中的应用

Tungsten Trioxide/Tungsten pH Ultramicroelectrode and Its Application for the Investigation of Myocardial Ischemic Injury

该文报道了钨超微电极的制作方法，利用电化学氧化的手段在钨超微区域衍生三氧钨膜而制成三氧化钨／钨（WO3／W）pH超微电极。实验发现，在pH2．0～13．0的范围内，WO3／W超微电极对H＋是较好的响应，相关系数为0．9996，斜率为56．6mV／pH。将超微电极应用于心肌细胞缺血性损伤的研究中，结果满意。

The processing of fabricating tungsten trioxide/tungsten and tungsten ultramicroelectrede is described in this paper. Tungsten trioxide/tungsten pH ultramicroeletrede could be fabricated by preducing tungsten trioxide film at tungsten ultramicroclectrede surface by electrooxidation. WO3/W electrede exhibits a good reponse to H+ in the range of pH2. 50 to 12. 50, r = 0. 9996, slope is 56. 6mV/pH. The ultramicroelectrede is applied for the investigation of myocardial ischemic injury with satisfactory results.