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Standardless quantification of crystalline polymorphic mixtures using the component decomposition method

Published online by Cambridge University Press:  20 June 2025

Takumi Ohta Open the ORCID record for Takumi Ohta [Opens in a new window] ,
Kasumi Kihara  and
Akito Sasaki
Takumi Ohta*
Affiliation:
Rigaku Corporation , 3-9-12 Matsubara-cho, Akishima, Tokyo 196-8666, Japan
Kasumi Kihara
Affiliation:
Rigaku Corporation , 3-9-12 Matsubara-cho, Akishima, Tokyo 196-8666, Japan
Akito Sasaki
Affiliation:
Rigaku Corporation , 3-9-12 Matsubara-cho, Akishima, Tokyo 196-8666, Japan
*
Corresponding author: Takumi Ohta; Email: t-ota@rigaku.co.jp
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Abstract

We developed a method called “component decomposition” to extract the pattern of each component of the sample from the multiple powder X-ray diffraction data. Using the component decomposition and the Direct Derivation Method™, we analyze the behavior of phase transitions of trehalose during the changes in temperature and humidity. Because we do not require databases or standard samples, this method is a powerful tool for the quantification of polymorphs in samples containing multiple polymorphs.

Keywords

DD methodcomponent decompositionstandardless quantificationpowder diffractionamorphousphase transition

Information

Type
Proceedings Paper
Information
Powder Diffraction , Volume 40 , Issue 3 , September 2025 , pp. 210 - 214
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Copyright
© The Author(s), 2025. Published by Cambridge University Press on behalf of International Centre for Diffraction Data

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References

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