| Autor: |
Zhao, Miao Miao, Yang, Yang, Du, Na, Zhu, Yu Ying, Ren, Peng, Yen, Fei |
| Zdroj: |
Journal of Materials Chemistry C; 4/28/2024, Vol. 12 Issue 16, p5877-5885, 9p |
| Abstrakt: |
Mixed solid compounds are employed in a vast array of applications so an accurate determination of their chemical compositions is of crucial importance. All current characterization methods require specially treated samples, so the availability of a more practical method with similar accuracy should alleviate the quantification process. In this work, we show how the doping concentration δ (or isotope concentration) of a mixed solid compound in the powdered form, where both parent compounds are diamagnetic, can be obtained from the measurement of its mass magnetization. We exploit the additive nature of the molar magnetic susceptibility χMol and molar mass quantities to construct two equations with the same two unknown variables in the χMolvs. δ plot to simultaneously obtain χMol and δ of a mixed solid. Eight examples are provided to show the wide applicability of this method: NH4(1−δ)D4δBr (where D = 2H), NH4I1−δBrδ, (NH4H2)1−δ(ND4D2)δPO4, C48H22+6δBr6(1−δ)O32Zr6, [creatine]1−δ[ D -glucose]δ, [ L -glutamic acid]1−δ[ L -leucine]δ, [terephthalic acid]1−δ[trimesic acid]δ and [p-terphenyl]1−δ[triphenylphosphine]δ. Experimental errors of ±1.2% were obtained for δ from an average sample mass of 16.6 mg in the powdered form rendering the presented approach an attractive choice for characterizing the ratios of mixed solids. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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