Continuous water content measurement is playing an increasingly important role in a wide variety of industrial applications. Suitable sensors for measuring the water content in bulk materials and liquids enable continuous monitoring of the water content and product moisture during all production, processing and finishing processes. It also makes sense to include the measurement in a complete control loop, especially with regard to quality assurance and quality improvement. Another advantage of continuous monitoring is the energy savings achieved during the production process. Such sensors are used, for example, in the area of bulk goods. Building materials such as sand, clay or iron ore can be measured here, as can biomass, food or chemical products. But the water content also plays an important role in liquids such as oils, fuels and emulsions. The focus here is on preventing corrosion damage and protecting engines, for example.

Statement of the Problem: Biomass derived carbon material can act as an exclusive host template for newer electrodes which can enhance the performance of sensors. A cost effective viable production of strong, portable, sensitive and selective electrochemical sensing devices are the need of the hour for a biosensor and point of care device. It is carried out easily by bio-derived carbon structures that are synthesized by uncomplicated steps, from low-cost abundantly available renewable biomass. Depending on the properties of these new materials they can be integrated with the devices, various detection technologies can be used, where optical and electrochemical detection are the most popular. The technique is used to improve the surface properties so as to increase the electro-analytical behavior of working electrodes. This chapter includes the development of bio-based carbon materials and their application in electrochemical analysis.