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Showing posts from May, 2021

Spectrophotometer and Calibration Curves: Sigma Labs

What is a Spectrophotometer?  A spectrophotometer is a popular optical instrument that measures light intensity in relation to color (or wavelength). They're used in the lab to see how much light a colored chemical dissolved in the solution absorbs. This enables us to quantify chemical concentrations and purity, evaluate particular chemical properties, and monitor and measure chemical reactions in real-time. What are Calibration Curves?  Calibration curves are used to calculate the concentration of unknown substances based on measurements of known concentration solutions. The calibration curve determines the precision and accuracy of the measurements. The more accurate the answer, the better the curve; the less accurate the answer, the worse is the curve. Calibration curves are used for a wide range of measurements on a wide range of devices.  Why is Calibration Important?  Calibration increases the accuracy of precise measurements needed in R&D, innovation, and the final outpu