Quantification and Characterization
Especially in the case of nanomaterials, but also for other poorly soluble, non-homogeneously distributed test items, very precise analytics are necessary to capture the exposure situation.
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Quantification
We place great emphasis on excellent analytics to determine the concentration of the test item in all studies.
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Characterization
The characterization of a nanomaterial includes, in addition to the particle size distribution and the volume-specific surface area, for example, the determination of the shape of the particles and the aspect ratio.
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Particle size analysis
The particle size can be determined with different instruments, we will be glad to advise you which one is best suited for your product.
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Particle surface analysis
The most important parameter of the particle surface is the volume-specific size, but the functionalization and charge of the surface also provide important insights.
Tests
For the characterization and quantification of nanomaterials, many classical analytical methods but also nano-specific analytical methods and devices are necessary. Only a few laboratories have the necessary prerequisites for this.
Single particle ICP-MS for elucidation of concentration and number-based particle size distribution.
Nanoparticle Tracking Analysis to determine the number-based particle size distribution in the test medium or in dispersions.
The measurement of surface area and porosity of powders is difficult. There are only a few techniques, and none of them are easy to use. The choice for measuring surface area generally falls on a technique known as the BET (Brunauer, Emmett and Teller) method.
Depending on the expected particle shape, an investigation with TEM and/or SEM is the tool of choice when it comes to particle size distribution and further characterization.
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Your Contact
Dr. Ricki Rosenfeldt
Managing director and founder of nEcoTox GmbH
- I studied environmental science and developed a preference for ecotoxicology
- Since 2009 I have been working on nanomaterials in the field of ecotoxicology
- Since 2011 I have specialized in analytics for nanomaterials (e.g. ETV-ICP-MS)
- My time at the university resulted in over 40 peer-reviewed publications and a PhD.
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Free consultation
Do you have further questions or would you like to cooperate with us? Then contact us.