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Novel voltammetric in-situ profiling system for continuous real-time monitoring of trace elements in natural waters

机译：新颖的伏安法原位分析系统，用于连续实时监测天然水中的痕量元素

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This article describes a novel voltammetric in-situ profiling system (VIP System) for continuous, real-time monitoring of trace elements in fresh and seawater down to 500 meter depth. The VIP System has been designed using advanced microprocessor and telemetry technology. The heart of the submersible voltammetric probe is a Hg-plated Ir-based microsensor covered with an antifouling gel membrane. This gel integrated microsensor allows direct voltammetric measurements of trace metals in complex media without physical and chemical interferences of the lest solution. A derailed description of the system is given and examples of environmental applications are reported for in-situ trace metal monitoring in oxygen saturated seawater as well as for in-situ profiling of Mn-II in anoxic lake water. The results indicate that the VIP System is robust and reliable and that in-situ measurements of mobile fraction of trace metals can be achieved down to very low concentration levels (ca. 5 ppt). [References: 23]
机译：本文介绍了一种新颖的伏安法原位分析系统（VIP System），用于连续，实时监控深至500米深的淡水和海水中的痕量元素。 VIP系统是使用先进的微处理器和遥测技术设计的。潜水伏安式探头的心脏是覆盖有防污凝胶膜的镀汞的Ir基微传感器。这种凝胶集成的微传感器可直接测量伏安介质中的痕量金属，而不会产生有害溶液的物理和化学干扰。给出了该系统的脱轨描述，并报道了在氧饱和海水中原位监测金属以及在缺氧湖水中原位分析Mn-II的环境应用实例。结果表明，VIP系统功能强大且可靠，并且可以实现低至极低浓度水平（约5 ppt）的痕量金属移动分数的现场测量。 [参考：23]

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