Pretreatment of wavelength dispersive X-ray (WDX) fluorescence analysis

Overview of press molding method & glass bead method

To obtain better data in wavelength-dispersive X-ray fluorescence analysis, it is necessary to prepare samples according to the purpose. 

We would propose an appropriate pretreatment for your purpose.

Please feel free to contact us.

Press molding method

                                  Fig.1　manual press machine                      Fig.2　An example of press molding                                              

Glass bead method

Fig.3　Bead sampler                               Fig.4　Glass bead example

The sample is melted and vitrified at 1000 ℃ to  1250 ℃ in a platinum crucible with a flux and release agent such as lithium tetraborate (Li₂B₄O₇).

Differences between the press molding method and the glass bead method

The press molding method is less accurate than the glass bead method, but it provides universal data. The glass bead method provides more accurate data, but is not suitable for highly volatile components due to heat treatment at high temperatures.

Please feel free to contact us, since we would propose the best method for your inquiries.