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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. Merck

    Photometer NOVA 60 A Spectroquant®

    SKU: MC1097520001
  2. Merck

    Demo Set for photometers Spectroquant®

    SKU: MC1098200001
  3. Merck

    Prove 300 UV/VIS spectrophotometer Spectroquant®

    SKU: MC1730170001
  4. Merck


    SKU: MC1097480001
  5. Merck


    SKU: MC1097510001
  6. Merck

    Thermoreactor TR 620 Spectroquant®

    SKU: MC1712020001
  7. Merck

    Prove 600 UV/VIS spectrophotometer Spectroquant®

    SKU: MC1730180001
  8. Merck

    Screw caps for TOC digestion Spectroquant®

    SKU: MC1735000001
  9. Merck

    Multy Colorimeter Spectroquant®

    SKU: MC1736300001
  10. Merck

    Colorimeter Move 100 Spectroquant®

    SKU: MC1736320001
  11. Merck

    Spectroquant® Data Transfer

    SKU: MC1736330001
  12. Merck

    Update cable for Move 100 Spectroquant®

    SKU: MC1736340001
  13. Merck

    Move Cl2 / O3 / ClO2 / CyA / pH Spectroquant®

    SKU: MC1736350001
  14. Merck

    Spectrophotometer Pharo 100 Spectroquant®

    SKU: MC1007060001
  15. Merck

    UV-VIS Spectrophotometer Pharo 300 Spectroquant®

    SKU: MC1007070001
  16. Merck

    Case for Prove 100, 300 and 600 Spectroquant®

    SKU: MC1730200001
  17. Merck

    Colorimeter Picco COD / CSB Spectroquant®

    SKU: MC1736080001
  18. Merck

    Power Supply for Multy Spectroquant®

    SKU: MC1736310001
  19. Aqualytic

    AQUALYTIC Spectrophotometer SpectroDirect

    SKU: AQ4712000
  20. Aqualytic

    COD reactor ET 108 COD reactor ET 108

    SKU: AQ418940
  21. Aqualytic

    Waste Water Set-Up AL800

    SKU: AQ4712100
  22. Macherey-Nagel

    Compact photometer PF-3 Drinking Water, in rugged case

    SKU: MN934124
  23. Macherey-Nagel

    Compact photometer PF-3 Drinking Water, in rugged case

    SKU: MN934125
  24. Macherey-Nagel

    VISOCOLOR reagent case with photometer PF-12 Plus

    SKU: MN914351
  25. Macherey-Nagel

    VISOCOLOR reagent case without photometer PF-12 Plus

    SKU: MN914351.1
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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.