The development of a novel electrochemical sensor for the detection of concentration of atmospheric sulfur dioxide in the low-mg/m 3 range is described. The gas sensor is based on a platinum microelectrode and a porous polymer film, which is directly connected with the gas-containing atmosphere. The gas sensor is very sensitive, selective, and reproducible for detection of SO2. The linear range over 0 10 mg/m 3 to 150 mg/m 3 and the detection limits is 0 05 mg/m 3.
本文利用电化学聚合法制备了 P-Mn(TAPc)/Nafion 微型传感器,并研究了该传感器对一氧化氮(NO)的电化学响应。实验表明,该传感器对 NO 具有良好的催化氧化特性,对 NO 的响应具有较低的检测限、较好的选择性和较高的灵敏度。我们将该传感器成功地应用于离体培养的心肌细胞受刺激释放的 NO的检测。
