An electrochemical sensor utilises a chemical compound which is not a macromolecule but rather is a single chemical compound of determinate structure, incorporating two redox systems which differ in their response to a species to be detected. In one form, one redox system displays a voltammetric wave which is pH dependent while another displays a voltammetric wave which is pH independent and acts as an internal reference. The sensor comprises a solid substrate, which may be carbonaceous, on which the compound is immobilized. The sensor may be incorporated into a tool to be suspended in a wellbore.
一种电
化学传感器利用一种
化学化合物,该化合物不是大分子,而是一种具有确定结构的单一
化学化合物,包含两个氧化还原系统,它们对待检测物种的响应不同。在一种形式中,一个氧化还原系统显示一个电位波,其pH依赖性,而另一个显示一个电位波,其pH无关,并作为内部参考。传感器包括一个固体基底,可以是碳质的,在其上固定化合物。传感器可以被纳入到悬挂在井孔中的工具中。