Determination of water contents with indicator reagents and immersion photometer

VC3.6.1.1
Determination of water contents with indicator reagents and immersion photometer
Determination of water contents with indicator reagents and immersion photometer

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Description

In experiment C3.6.1.1, water samples are tested for several ingredients, e.g. phosphate, ammonium or nitrate. These are photometric assays. The chemical basis for this relies on the fact that the ingredient to be identified forms a coloured compound or turbidity with the reagents added. At an appropriate wavelength, the extinction of the colour or turbidity created in this way is directly proportional to the concentration of the ingredient.

Components of equipment sets

1 524069  8  Immersion photometer S LD
1 6662605 Holder for immersion photometer S LD
1 524018  8  Pocket-CASSY 2 Bluetooth LD
1 524019  8  * Rechargeable battery for Pocket-CASSY 2 Bluetooth LD
1 5240031  8  * Bluetooth dongle LD
1 524220  4  CASSY Lab 2 LD
1 6662600  8  Photometry - reagent set 1 (with storage case and accessories) LD
1 666961 Double-ended microspatula, stainless steel, 185 mm LD
1 664043  8  Test tubes, Fiolax, 16 x 160 mm, set of 10 LD
1 667050  8  Test tube rack, plastic, for 9 tubes, 18 mm Ø LD
1 665997  8  Graduated pipette, 10 ml LD
1 666003  8  Pipetting ball (Peleus ball) LD
1 656016  8  Bunsen burner, universal LD
1 607025  8  Safety gas hose 1.5 m LD
1 6747860  4  Sulfuric acid, 95-98 %, 500 ml LD
1 additionally required: PC with Windows 7 or higher

Articles marked with * are not essential, we do however recommend them to carry out the experiment.

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