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- https://chem.libretexts.org/Bookshelves/Analytical_Chemistry/Analytical_Chemistry_2.1_(Harvey)/10%3A_Spectroscopic_Methods/10.03%3A_UV_Vis_and_IR_SpectroscopyThe page discusses the evolution of color matching in spectroscopy, detailing the transition from Nessler's original method to modern photoelectric and infrared methods in the 1930s and 1940s. It then...The page discusses the evolution of color matching in spectroscopy, detailing the transition from Nessler's original method to modern photoelectric and infrared methods in the 1930s and 1940s. It then describes different instrument designs for molecular absorption spectroscopy, including filter photometers, single-beam and double-beam spectrophotometers, and diode array spectrometers, highlighting their features and limitations.
- https://chem.libretexts.org/Bookshelves/Analytical_Chemistry/Instrumental_Analysis_(LibreTexts)/14%3A_Applications_of_Ultraviolet_Visible_Molecular_Absorption_Spectrometry/14.04%3A_Quantitative_ApplicationsThe determination of an analyte’s concentration based on its absorption of ultraviolet or visible radiation is one of the most common quantitative analytical methods. In addition, if an analyte does n...The determination of an analyte’s concentration based on its absorption of ultraviolet or visible radiation is one of the most common quantitative analytical methods. In addition, if an analyte does not absorb UV/Vis radiation—or if its absorbance is too weak—we often can react it with another species that is strongly absorbing.
- https://chem.libretexts.org/Bookshelves/Analytical_Chemistry/Analytical_Chemistry_2.1_(Harvey)/11%3A_Electrochemical_Methods/11.02%3A_Potentiometric_MethodsThe page provides a comprehensive overview of potentiometry, which is a method for measuring the potential of electrochemical cells under static conditions. This technique facilitates quantitative ana...The page provides a comprehensive overview of potentiometry, which is a method for measuring the potential of electrochemical cells under static conditions. This technique facilitates quantitative analysis by relating a cell???s potential to the concentration of electroactive species using the Nernst equation. It also covers different types of electrodes used in potentiometry, such as ion-selective electrodes, the significance of reference electrodes, and the impact of junction potentials.
