absorbance
Spectral uptake measure
Absorbance is a measure of how much light a substance absorbs rather than transmits.
Used in chemistry and physics, it quantifies opacity: higher absorbance means less light passes through.
Scientists use absorbance to determine concentrations of solutions, since dissolved substances absorb light in proportion to their amount: We measured the absorbance at 540 nanometers.
Measuring light wavelength absorption
- wavelengthSpatial repetition interval
- molar absorptivityAbsorption strength per mole
- chromophoreMolecule's tint-causing portion
- ultravioletWavelengths shorter than violet
infrared · visible light · nanometers · photometry · absorptivity · transmittance · blank · baseline
Interpreting written text
- unitsStandard measures of quantity
- valueImportance or price
- coefficientNumber multiplying a variable
- ratioComparative numerical relation
logarithm · intensity · incident light · concentration · dilution · sensitivity · accuracy · precision
Measuring perceived hues precisely
- assayCompositional evaluation procedure
- titrationMeasuring concentration by addition
- kineticsScience of motion forces
- water qualityCondition of H2O supply
chemical analysis · pharmaceutical · environmental monitoring
spectrophotometry
Measuring light wavelength absorption
- wavelengthSpatial repetition interval
- molar absorptivityAbsorption strength per mole
- chromophoreMolecule's tint-causing portion
ultraviolet · infrared · visible light · nanometers · photometry · absorptivity · transmittance · blank · baseline · peak
reading
Interpreting written text
- unitsStandard measures of quantity
- valueImportance or price
- coefficientNumber multiplying a variable
ratio · logarithm · intensity · incident light · concentration · dilution · sensitivity · accuracy · precision · instrument
colorimetry
Measuring perceived hues precisely
- assayCompositional evaluation procedure
- titrationMeasuring concentration by addition
- kineticsScience of motion forces
water quality · chemical analysis · pharmaceutical · environmental monitoring
- absorption spectraspectral lines, Fraunhofer lines, dark lines, Balmer series
- opticslens, lenses, mirror, mirrors, prism
- optical propertiesreflectivity, transparency, translucency, refraction, gloss
- spectroscopyspectrum, spectrometer, spectroscope, spectrograph, spectrogram
- Lab Analysisspectrometer, spectrophotometry, spectroscopy, colorimeter, photometer
- Lab Measurementsconcentration, conductivity, pH, purity, salinity
absorb, absorbed, absorbing, absorption, absorbent, absorptive, absorbency, absorber, unabsorbed