Last update: 03/09/2013
  

 

 

Expertise

• Ultraclean methods for trace metal analyses:

- Clean room practices

- Preparation ultraclean reagents by subboiling distillation

- Ultraclean sampling for trace metal analyses (<1 nmol/L) in snow, sea ice, seawater

• Analytical techniques:

- Selective extraction (liquid/liquid, liquid/solid), acid digestion, ion exchange chromatography

- Atomic Absorption Spectrophotometry (GFAAS and FAAS)

- Flow Injection Analysis (FIA) with in-line chelating preconcentration/matrix separation (8-hydroxyquinoline) and detection by chemiluminescence (Fe), fluorescence (Al, Zn, Mn) or spectrophotometry (Mn)

- Synthesis chelating resin (TSK-8HQ)

- Flow Injection Mercury System ( FIMS)

- Inductively Coupled Plasma Atomic Emission Spectrophotometry (ICP-AES)

- Quadrupole Inductively Coupled Plasma Mass Spectrometry (Q-ICP-MS)

- Multicollector magnetic sector double focusing ICP-MS (MC-ICP-MS)

• Quality control

- Analysis certified reference materials (for concentrations and/or isotopes: NRC, NIST, USGS, IRMM, SAFe, GEOTRACES)

- Isotopic characterization of USGS geological reference materials

- Certification of trace metals in seawater (IRMM BCR-403)

- Validation of analytical methods

- Participation in interlaboratory comparison exercises (Intergovernmental Oceanographic Committee, QUASIMEME, MERLIM, SAFe, GEOTRACES).