The online MIPS analyzer series use molecularly-imprinted polymer coatings on a quartz crystal sensor chip to create a highly selective and specific sensor, which can easily be regenerated after each analysis run, allowing for high reproducibility. All MIPS online sensors use an automated system workflow for sample transfer, injection, signal monitoring, and data processing, providing a fast and convenient system which requires minimal input from the operator. In addition, MIPS online sensors use a cloud-based data storage system which allows users easy access to their data from a smartphone or other mobile devices. The online sensors series is applicable for a wide variety of analytes, including heavy metal ions, fluoride, and chloride.