复合针型钨／氧化钨微pH传感器的研制

Micro Needle-Concentric pH Senser Prepared on Wolfram Oxide-Coated Wolfram Wire

钨丝氧化膜对Ｈ＋的能斯特响应范围ｐＨ２－１１，特别是在体测量的ｐＨ７－８响应更为突出。复合针型微ｐＨ传感器适于在体ｐＨ测定。

In the present work wolfram oxide film on wolfram wire(Diameter=90μm) was found to work as a very satisfactory hydrogen ion selective sensor and showed a Nernstian response in a pH range of 2-11 within 1 min., especialy in the pH range of 7.0 ￣ 8.0, that is very important for pH measurement in ViVo.