|OELCHECK test instrument:
|Spectro Arcos FHX 22
|Determination oft the trace element content of aluminium, calcium, chromium, copper, iron, potassium, magnesium, sodium, nickel and zinc.
|0,1 – 10 mg/l
The sample to be analyzed is diluted with water in a 1:1 ratio. The solution is pumped into the nebuliser with a peristaltic pump. An argon stream thereby nebulises the sample to form an aerosol. The large droplets are removed in the spray chamber. The aerosol thus prepared now enters the plasma, a mixture of atoms, ions and electrons. The extremely hot plasma of about 10,000 °C excites the individual elements.
The excited elements emit radiation with characteristic wavelengths for each individual element. The emission lines are spread out and the intensity detected with a CCD chip. A full emission spectrum is recorded simultaneously. The element contents oft he samples are determined with previously established calibration lines.
|The determination of trace element levels is an essential quality criterion fort he release of AdBlue according to ISO 22241-1.
|Underlying test standard:
|ISO 22241-2 Annex I