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

使用微型电化学传感器原位测量地下水中溶解的金属

• 批准号: 9160693
• 负责人: Paul Maciel
• 金额: $ 5万
• 依托单位: In-Situ Sensors
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-01-01 至 1992-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9160693&HistoricalAwards=false
• 关键词: situ; Measurement; Dissolved; Metals; Ground

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.

该研究将开发一种新的分析工具， 溶解金属原位分析技术 在地下水里。 该项目包括实现 溶解金属的分析，通过应用众所周知的 以一种新颖的方式研究极谱法的原理。 细节 介绍了这一新的分析技术， 在专有部分中描述。 PS-1！ 程序 将比标准的可用电化学性能更好 溶解金属的原位分析技术 原因如下：（1）相关问题 电极中毒是通过首先排出 （2）电极从待分析的水中产生毒物;（3）大多数 物种之间的相互作用和干扰 工作电极的表面受到抑制;（3）许多 使用经典的 极谱技术被抑制;（4）低检测 （5）更好的分离; 可电镀的物种。 小尺寸将允许部署设备 直接作为现场传感器， 能够容纳几个设备的商业探头 厘米大小。 微加工技术在 传感器的生产将提供新的复杂的 分析设备，单位成本低。