An Integrated FFF-spICP-QMS System at the Colorado School of Mines Aquatic Nanoparticle/Colloid Analysis Lab

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Provenance: Perkin Elmer NexION 350 ICPMS
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PostNova AF-4/Perkin Elmer NexION 350D

• Stable isotopes
• Environmental (field) Sampling

Field flow fractionation (FFF) provides a "chromatography-like" separation of aquatic nanomaterials with online elemental detection by ICP-QMS. Single particle ICP-MS (spICP-QMS) directly counts and sizes nanoparticles and colloids from 50-2000 nm. Instruments can be run in stand alone mode or hypenated together.

Applications include:

• Composition (elemental) of phases
• Trace element analysis
• Dissolution/precipitation of phases

The size distribution of elements among aquatic species (humic-bound, nanoparticlulate, colloidal) is measured. Typical samples include surface waters, atmospheric precipitation, and soil dispersions. Fractions collected after FFF separation can be subject to electron microscopy for further characterization.

• Visitors are invited to work in the lab to work with lab personnel
• Training Session (short course) is offered
• Given the specialized nature of the equipment guest researchers will work closely with students/postdocs during their visit. Inclusion of students/postdocs as authors on publication will be discussed before any project is initiated.

Costs will be determined on an individual basis after consultation with the laboratory manager.

Priority is given to funded research projects.

Remote operation is not possible

Minimal sample pretreament is required. Samples should be filtered at 10 micron.

Nanoparticle standards are used to calibrate instrumentation and are provided by the laboratory.

Graduate student research projects are invited

NSF CBET 1512695