美国TraceDetect 
美国TraceDetect（微检）公司以化学传感器的微处理技术而著称，目前是世界上最专业的重金属分析仪表制造商。公司具有Nano-Band（纳米带）电极专利技术并研制出系列重金属分析仪，可对水样中的金属含量快速测定，灵敏度为全球最高，可达ppt级。
TraceDetect, a Seattle-based company, was formed in 1998 to research and commercialize new chemical and optical sensors through reductions in electrode size made possible by microfabrication techniques. To that end, the Nano-Band™ electrode was developed for trace metals analysis, and specific software was designed to support several products. At present, the commercialization of automated trace metals measurements instrumentation, using stripping voltammetry and the Nano-Band electrode are the primary foci of the company