Mobile fraction
Fine dust particles can penetrate deep into the lungs. There, the soluble components in particular pose an increased risk to human health. In the case of suspended material in rivers, it is of interest which elements can be mobilized, e.g. by changing the water composition (freshwater/saltwater; tributaries/tributaries).
We determine the mobile fractions in your particles by leaching with appropriate solvents (water, salt solution, diluted acids, etc.). These are then analysed for the desired elements using our wet chemical methods.
We would be pleased to inform you about our possibilities.
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Methods |
Element spectrum / |
Device |
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Metals |
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Multi-element methods |
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ICP-MS |
main elements (Na, K, Ca, Mg) div. trace elements (e.g. Al, Au, Ag, As, B, Be, Cd, Co, Cr, Cu, Fe, Li, Mn, Mo, Pb, P, Rb, Zn, U) PGEs, SEE ng/L to mg/L, ppt to ppm (depending on matrix/element) |
X-Series 2, |
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ICP-OES
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Major elements (Na, K, Ca, Mg) Selected trace elements (e.g. Ba, Fe, Mn, S, Si, Sr) also suitable for salt-heavy samples µg /L to mg/L, ppb to ppm (depending on matrix/element) |
Varian 715ES |
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Single element methods |
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AAS (flame) |
Single elements especially Na, K, Ca, Mg mg/L, ppm - range |
AAnalyst 200, |
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AAS (graphite furnace) |
Single elements e.g. Pb, Cd, Mn, As, Se µg/L, ppm - range |
AAnalyst 600, Perkin Elmer |
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AAS (hydride, FIAS) |
Se, As µg/L, ppm - range |
FIMS 400, coupled with AAnalyst 200, Perkin Elmer |
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Anions |
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Ion chromatography (IC) |
F, Cl, Br, NO3-, PO43-, SO42- |
Dionex, ICS-1000; separation column IonPac As14 Supressor ERS 500 Eluent NaHCO3/Na(CO3)2 |
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Photometry
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Phosphate (DIN En ISO 6878) Chromate (US EPA et al. 1992) >0.1 mg/L, ppm |
Lamda2, Perkin Elmer |