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The photometer used for the method of photometry is composed of a light source (infrared or ultraviolet), a cuvette through which the light is cast, the detector and the display device, which images the exact measurements of the photometric analysis. Below you will find a selection of photometers for field conditions, in a handy pocket format and much more from numerous manufacturers like Merck, WTW and Macherey-Nagel.

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  1. Macherey-Nagel

    VISOCOLOR reagent case with photometer PF-12 Plus

    SKU: MN914351
    In Stock
  2. WTW

    pHotoFlex pocket photometer, incl. batteries (4 AA)

    SKU: WW251100
    In Stock
  3. Macherey-Nagel

    NANOCOLOR® Kompaktphotometer PF-12 Plus

    SKU: MN919250
    In Stock
  4. Macherey-Nagel

    Thermoblock Nanocolor Vario C2

    SKU: MN919350
    In Stock
  5. Macherey-Nagel

    Photometer VIS II without WLAN

    SKU: MN919650.1
    In Stock
  6. Macherey-Nagel

    Photometer Nanocolor 500 D

    SKU: MN919500
  7. Macherey-Nagel

    Heating bloc safety cover

    SKU: MN916598
  8. Aqualytic

    AQUALYTIC Spectrophotometer SpectroDirect

    SKU: AQ4712000
  9. Aqualytic

    Waste Water Set-Up AL800

    SKU: AQ4712100
  10. Macherey-Nagel

    VISOCOLOR reagent case without photometer PF-12 Plus

    SKU: MN914351.1
  11. Aqualytic

    COD reactor ET 108 COD reactor ET 108

    SKU: AQ418940
  12. Macherey-Nagel

    Compact photometer PF-3 Drinking Water, in rugged case

    SKU: MN934124
  13. Macherey-Nagel

    Compact photometer PF-3 Drinking Water, in rugged case

    SKU: MN934125
  14. Funke Gerber

    Phosphatesmo Test-Stripes MI

    SKU: FG7822
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Construction of a photometer

A photometer used for the photometric analysis consists principally consists of a light source, a filter, a cuvette and a detector. Furthermore there are additional screens and mirrors in this kind of device. The light from the light source is incident on the filter, wherein the wavelength at which is to be measured is determined. Subsequently, the light passes through the sample solution, which is located in the sample cuvette and then to the detector. Logically speaking, the smaller the amount of light, the higher the concentration of the sample must be (basically, light transmittance of the sample).

The different units of the manufacturers vary in terms of the basic design and quality of the optical components - these affect the quality of the measurement and the application range.