Nanoparticles in Water

Quantification and Fingerprinting of Natural and Engineered Nanoparticles in Water

Background

Monitoring Nanoparticles in Water

Chemical analysis of environmental, drinking, and industrial water is the basis for assessment of water quality and pollution levels, hydrological studies, and monitoring of industrial processes. Inductively-coupled plasma mass spectrometry (ICP-MS) is routinely applied for elemental analysis of water. Along with dissolved metal ions, the more challenging analysis of particulate matter of natural and anthropogenic origin is also crucial.

Single particle ICP-MS (sp-ICP-MS) enables the elemental analysis of individual particles with very low concentration detection limits, making it an attractive method for monitoring and assessing the risk of manufactured nanoparticles in environmental waters. With its unique capability to simultaneously measure all elements in single particles, the icpTOF constitutes a promising tool for quantification and fingerprinting of natural and engineered nanoparticles in liquid samples.

Solutions

  • Multi-Element Fingerprinting of Nanoparticles in Water Using the icpTOF

    • All the elements. All the time. The icpTOF always records complete mass spectra, so you never miss an analyte or interference signal and allows to build up elemental fingerprints.
    • High mass resolution. The icpTOF 2R has a mass resolving power of 6000 allowing you to separate interfering ions.
    • High sensitivity. The icpTOF S2 provides highest full mass range sensitivity for precise fingerprinting and accurate quantification of multi-element information in individual particles.
    • Precise isotope ratios. The icpTOF simultaneously measures all isotopes, thus eliminating the susceptibility of your measurements to source and sample fluctuations.  Precision approaches statistical limits.
    • High speed detection. The icpTOF records a complete mass spectrum every 12-50 µs making it the optimum detector for fast transient signals such as individual nanoparticles.
    • Collision/reaction cell technology allows interference removal
    • Dedicated workflow for particle analysis in TOFpilot

     

    What is Single Particle ICP-MS?

    nanoparticles in water

    Ti-containing particle signals detected from a lake water sample. A fraction of particles contains Ti only and most likely represents engineered TiO2. Another fraction contains other elements and represents natural particles.  Collaboration study with A. Gondikas and F. von der Kammer, University of Vienna

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