Spectrometric methodology for dissolved gas analysis

In this column, the oldest DGA method, spectrometry, is described.

byM. Grisaru


In previous columns on DGA by Marius Grisaru, gas chromatography and electrochemical approaches for dissolved gas measurement were described. In this column, the oldest and emerging method, spectrometry, is described. It is an applicable method for most online and portable devices, and it may reappear in laboratories as reliable and standardized.

It can be said that the first DGA analysis was performed using the spectrometric principle, while today, the majority of DGA tests are performed by instruments that issue the final results using the spectrometric methodology. The author also describes the pros and cons of the method.

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