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Measuring Absorbance definitions

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  • UV-Vis Spectroscopy
    Analytical technique measuring how much ultraviolet or visible light a sample absorbs or transmits.
  • Absorbance
    Quantitative measure of light absorbed by a sample, indicating how much light does not pass through.
  • Percent Transmittance
    Proportion of incident light passing through a sample, expressed as a percentage.
  • Sample Concentration
    Amount of analyte present in a solution, directly affecting light absorption and transmission.
  • Antilogarithm
    Mathematical operation used to convert absorbance values to percent transmittance in calculations.
  • Incident Light
    Light directed at a sample before any absorption or transmission occurs.
  • Transmitted Light
    Portion of light that successfully passes through a sample after absorption.
  • Inverse Relationship
    Mathematical connection where an increase in one quantity results in a decrease in another, as seen with absorbance and transmittance.
  • Analytical Equation
    Mathematical expression relating absorbance and percent transmittance, enabling calculation of one from the other.
  • Light Absorption
    Process by which a sample takes in photons, reducing the amount of transmitted light.
  • Photons
    Elementary particles of light involved in absorption and transmission processes in spectroscopy.
  • Calculation
    Process of determining absorbance or percent transmittance using mathematical formulas and measured values.