In-situ Measurement of Dissolved Metals in Ground Water Using Microfabricated Electrochemical Sensors

这项研究将开发一种新的分析工具和技术，允许对地下水中溶解的金属进行现场分析。该项目包括以一种新颖的方式应用众所周知的极谱原理实现对溶解金属的分析。这项新的分析技术的细节将在专有部分中介绍和描述。ıPS-1！该程序将比现有的标准电化学技术更好地用于溶解金属的原位分析，原因如下：(1)通过首先从待分析的水中排出电极毒物来防止与电极中毒有关的问题；(2)抑制了工作电极表面大多数物种间的相互作用和干扰；(3)抑制了使用经典极谱技术遇到的许多限制；(4)实现了低检测水平；(5)更好地分离了可电镀物种。小尺寸将允许设备直接作为现场传感器部署，由大多数可用的商业探测器支持，能够容纳几厘米大小的设备。使用微制造来生产传感器将提供新的尖端分析设备，单位成本较低。

The research will develop a new analytical tool and technique permitting in-situ analysis of dissolved metals in ground water. The project consists of realizing the analysis of dissolved metals by applying the well known principles of polarography in a novel manner. The details of this new analytical technology are presented and described in the proprietary section. ıPS-1!. The program will perform better than standard available electrochemical techniques for the in-situ analysis of dissolved metals for the following reasons: (1) problems associated with electrode poisoning are prevented by first exhausting the electrodes poisons from the water to be analyzed; (2) most between species interactions and interferences at the surface of the working electrodes are suppressed; (3) many of the constraints encountered using classical polarographic techniques are suppressed; (4) low detection levels are achieved; (5) better separation of electroplatable species. The small size will permit deployment of the devices directly as in-situ sensors supported by most available commercial probes capable of housing a device a few centimeters in size. The use of microfabrication for the production of the sensors will provide new sophisticated analytical devices at low cost per unit.