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  2. Ultraviolet–visible spectroscopy - Wikipedia

    en.wikipedia.org/wiki/Ultraviolet–visible...

    A UV-Vis spectrophotometer is an analytical instrument that measures the amount of ultraviolet (UV) and visible light that is absorbed by a sample. It is a widely used technique in chemistry, biochemistry, and other fields, to identify and quantify compounds in a variety of samples.

  3. Spectrophotometry - Wikipedia

    en.wikipedia.org/wiki/Spectrophotometry

    There are some common types of spectrophotometers include: UV-vis spectrophotometer: Measures light absorption in UV and visible ranges (200-800 nm). Used for quantification of many inorganic and organic compounds. 1. Infrared spectrophotometer: Measures infrared light absorption, allowing identification of chemical bonds and functional groups. 2.

  4. Spectronic 20 - Wikipedia

    en.wikipedia.org/wiki/Spectronic_20

    Using the Bausch & Lomb Spectronic 20 Colorimeter, 1962. The Spectronic 20 is a brand of single-beam spectrophotometer, designed to operate in the visible spectrum [1] across a wavelength range of 340 nm to 950 nm, with a spectral bandpass of 20 nm.

  5. Job plot - Wikipedia

    en.wikipedia.org/wiki/Job_plot

    In the case of UV-visible spectroscopy, for example, this means that the system must conform to the Beer-Lambert law. In addition, the total concentration of the two binding partners, the pH and ionic strength of the solution must all be maintained at fixed values throughout the experiment.

  6. Cary 14 Spectrophotometer - Wikipedia

    en.wikipedia.org/wiki/Cary_14_Spectrophotometer

    Cary Model 14B Recording Spectrophotometer (front, details almost identical to Model 14) Cary Model 14 Recording Spectrophotometer (back, open) The Cary Model 14 UV-VIS Spectrophotometer was a double beam recording spectrophotometer designed to operate over the wide spectral range of ultraviolet, visible and near infrared wavelengths (UV/Vis/NIR).

  7. Ultraviolet–visible spectroscopy of stereoisomers - Wikipedia

    en.wikipedia.org/wiki/Ultraviolet–visible...

    Ultraviolet–visible spectroscopy (UVvis) can distinguish between enantiomers by showing a distinct Cotton effect for each isomer. UVvis spectroscopy sees only chromophores, so other molecules must be prepared for analysis by chemical addition of a chromophore such as anthracene.

  8. UV detectors - Wikipedia

    en.wikipedia.org/wiki/UV_detectors

    The vast majority of liquid chromatographic systems are equipped with ultraviolet (UV) absorption detectors. The most common UV-Vis detectors used are variable wavelength detectors (VWD), photo diode array detectors (PDA), and diode array detectors (DAD). [4] Variable wavelength detectors decide in advance which wavelength is needed for the ...

  9. UV-Vis absorption spectroelectrochemistry - Wikipedia

    en.wikipedia.org/wiki/UV-Vis_absorption_spectro...

    UV-Vis absorption SEC is a recent technique that is continuously evolving. However, many advantages have been observed over other techniques. However, many advantages have been observed over other techniques.