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Inorganic Analyses

Skalar
Skalar. Photo: Jan van Arkel

Skalar

The first machine is a general-use analyser. It can measure (NO3+NO2), NO2, NH4, total dissolved N, PO4, SO4, and Cl. For most anions, the measurement range falls within 10 to 2000 µmol/l, whereas the measurement range is lower for PO4 (0.2 to 16 µmol/l) and NO2 (2 to 70 µmol/l). The substrate is usually fresh water, but with some adaptations BaCl2- and K2SO4 extracts, and saline samples can be analysed.

Skalar2
Skalar. Photo: Jan van Arkel

Our second and newer auto-analyser is dedicated to low concentrations of (NO3+NO2), NO2, NH4 and PO4. The measurement range of PO4 and NO2 is 0,1 to 1,0 µmol/l, for (NO3+NO2) it is 1 to 20 µmol/l and NH4 is quantified between 0.5 to 7 µmol/l. This analyser is fitted with detector-correction lines which allows the analysis of marine water samples. Out of range-samples can be diluted automatically.

ICP
Inductively Coupled Plasma (ICP). Photo: IBED

Inductively Coupled Plasma (ICP) and Atomic Absorption Spectroscopy (AAS)

For the analysis of trace elements and heavy metals in acid digested soils or liquid samples.

AAS. Photo: Jan van Arkel
Atomic Absorption Spectroscopy (AAS). Photo: Jan van Arkel

Acid digestion of samples are typically performed with HNO3/ HCl with a microwave (Paar Physica Multiwave) or with HF/H2SO4 of soil or organic material.

  • Technical specifications

    Perkin Elmer Optima 8000 Optical Emission Spectrometer with Perkin Elmer S10 autosampler (ICP-OES) and Perkin Elmer AAnalyst 400 (AAS) (Singapore).

Contact information

Please contact us for more information: IBED-lab-science@uva.nl

Dr. E. (Eva) de Rijke

Faculty of Science

Institute for Biodiversity and Ecosystem Dynamics