A tool that mathematically models the relationship between a measured signal and the known concentration of a substance is essential in various scientific disciplines. This model, often represented graphically, allows for the determination of unknown concentrations based on observed signals. For example, in chemistry, measuring the absorbance of light by a solution of known concentrations allows for the creation of a model. This model can then be used to determine the concentration of an unknown solution by measuring its absorbance and referencing the established relationship.
Such tools provide accuracy and efficiency in analytical processes across diverse fields like chemistry, environmental science, and medicine. Historically, these relationships were established manually through tedious calculations and graph plotting. Modern computational tools automate this process, minimizing human error and saving valuable time. This automation allows for more complex models and facilitates real-time analysis, crucial in fields like process control and medical diagnostics.