Micro-XRF Webinar: Bulk Quantification

Tom Warwick Micro XRF

Join Bruker for a webinar about bulk quantification with micro-XRF on Thursday 1st June 2017.

Blue Scientific is the official distributor of Bruker Micro-XRF in the UK, Ireland and Nordic region. If you have any questions please get in touch:

Micro-XRF instruments

 Contact us on 01223 422 269 or info@blue-scientific.com


  

Bulk quantification with micro-XRF

Deconvolution of spectra with ppm range traces of a well-known standard.

Approaches to Bulk Quantification

In XRF there are various ways to quantify spectra from bulk samples, each with its own benefits and weaknesses. The Bruker M4 TORNADO’s “tool box” of quantification methods equips you with various options for quantification of non-ideal sample types.

For unknown samples, the fundamental parameter (FP) approach enables quantification of virtually any sample spectra from homogeneous bulk materials with reasonable precision. However it does not usually consider tertiary and higher order effects in the sample. The quality of an FP quantification depends on your existing knowledge of the FP parameters of each element and the potential inter-element effects for certain combinations of elements. These parameters are more well-known known for some elements than for others.

In addition to this, not all samples are suitable for bulk FP quantification. The FP quantification based on Sherman’s equation assumes the sample to be ideal. Quantification can also be challenging if the sample contains significant amounts of elements lighter than Sodium eg Water, CO2, etc.

To improve precision it is therefore recommended to either combine FP quantification approaches with standards (semi-empirical standard supported FP) or to use fully empirical methods such as Lucas-Tooth or even polynomial calibration (correlating counts with particular sample properties eg thickness or element concentration) for samples with negligible inter-element effects.

At the end of the webinar there will be a 15 minute Q&A session.

Polynomial calibration in micro-XRF

Simple polynomial calibration using linear regression, for a sample with small amounts of sulphur in an adverse matrix.

Who is the webinar for?

  • Quality control specialists verifying the composition of metal samples
  • Failure analysis in industry and material research laboratories
  • R&D researchers

Speakers

  • Dr. Roald Tagle – Senior Micro-XRF Application Scientist, Bruker Nano Analytics
  • Dr. Max Buegler -Micro-XRF Application Scientist, Bruker Nano Analytics
  • Falk Reinhardt – Micro-XRF Application Scientist, Bruker Nano Analytics

Registration

There will be two sessions, both with the same content:

If you can’t attend the live webinar, register here to receive a link to a recording.

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Micro-XRF instruments

 Contact us on 01223 422 269 or info@blue-scientific.com

Bruker Tornado Micro-XRF

Bruker M4 TORNADO micro-XRF spectrometer