Standard test cadmium Ordering information

NANOCOLOR^® Cadmium

Photometric determination of cadmium

Photometric determination with dithizone.

At a pH > 6 cadmium ions react with dithizone to form primary cadmium dithizonate, which is stable in strongly alkaline medium and dissolves in carbon tetrachloride (tetrachloromethane) highly sensitive with pink
colour.

Data and ordering information

Cat. No. 918 13

Type standard test 1-13

Range 10 mm cuvette:
0.02 - 0.50 mg/l Cd²⁺
50 mm cuvette:
0.002 - 0.200 mg/l Cd²⁺

Sufficient for 25 determinations

Shelf life at least 18 months

Sea water suitability no

This test uses extraction methods and contains chlorinated hydrocarbons. If national or international legal limitations for the use, storage or shipment of tetrachlormethane must be observed, this test is also available without CCl4. The tetrachlormethane is requiered for this test and has to be purchased from a local laboratory shop.