In the Urban Ecosystems stream, we frequently analyze data through the creation of calibration curves. A calibration curve is a plot of absorbance (y-axis) vs. a minimum of three standards against their known concentrations (x-axis). Calibration curves allow researchers to determine the concentration of a substance in an unknown sample by comparing the unknown to a set of standard samples of known concentration. For the project that I am on, LCMS (liquid chromatography-mass spectrometry), calibration curves are an integral part of our research. However, I would argue that there is one