Traditionally, the Karl Fischer titration has been used for determining the moisture content in UO2 powder samples, for example, as described by Hibbits, 1953 on Google [Attached]. A Metrohm webinar has described the use of NIR spectroscopy for determining the moisture content in pharmaceutical chemicals [ https://www.youtube.com/watch?v=HSKaLZwaJvw ]. First, the moisture content is determined by NIR spectroscopy. Then the same samples are used for determining moisture by Karl Fishcher titration. Then a graph is drawn correlating the two sets of values. Using this graph, only NIR spectroscopy is used for moisture estimation of future samples, dispensing with the Karl Fischer method. Is NIR spectroscopy recommended for UO2 powder as a substitute for Karl Fishcher method?
Dear Balakrishna,
Indeed Nir spectroscopy is a good way to predict water content. There is no reason why this shouldn't work in your case. So I advise you to build a first multivariate regression model with some samples to see if it goes in the right direction.
Best regards,
Ludovic.
Thank you very much, Professor Ludovic Duponchel and Professor Mohamed A. Elbagerma.
Dear all, if you are interested in using electromagnetic radiation in measuring water content, you can get it via the permitivity via the dielectric mixture equation of Kraszewski. Microwave is used instead of IR. My Regards
Hi,
It is interesting to note that Karl Fischer titration (KF) is a direct method for moisture determination. While, near infrared spectroscopy (NIR), is an indirect method extensively investigated for water determination content of powders.
With my best regards
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