Colorimeter
From Wikipedia, the free encyclopedia
Colorimeter (invented by Jan Szczepanik) is a device used to measure the absorbance of a specific solution. It allows the absorbance of a solution at a particular wavelength of light to be determined. The most common application of a colorimeter is to determine the concentration of a known solute. Different chemical substances absorb different wavelengths of light. The concentration of a solute is proportional to the absorbance.
The optics filter in the colorimeter is used to select the wavelength of light which the solute absorbs the most, in order to maximize accuracy.
Colorimeters usually measure results in percent transmission, percent absorption, or both. The readings are given in arbitrary units.
In graphic design, colorimeters are used to generate color profiles for equipment in the workflow. Accurate color profiles are important to ensure that screen displays match the final printed products.
Agar plate • Aspirator • Autoclave • Bunsen burner • Calorimeter • Colony counter • Colorimeter • Centrifuge • Fume hood • Incubator • Laminar flow cabinet • Magnetic stirrer • Microscope • Microtiter plate • Plate reader • Spectrophotometer • Stir bar • Thermometer • Vortex mixer • Static mixer
Laboratory glassware
Beaker • Boiling tube • Büchner funnel • Burette • Condenser • Conical measure • Crucible • Cuvette • Laboratory flasks (Erlenmeyer flask, Round-bottom flask, Florence flask, Volumetric flask, Büchner flask, Retort) • Gas syringe • Graduated cylinder • Pipette • Petri dish • Separating funnel • Soxhlet extractor • Test tube • Thistle tube • Watch glass
