Abstract
The standard methods for elemental analysis of aluminum and sodium in zeolites typically require significant sample and reagent preparation before the final titrimetric or atomic spectroscopic measurement. Low-resolution, bench top nuclear magnetic resonance (NMR) has shown important applications for rapid quantitative analysis of hydrogen and/or fluorine containing materials without sample preparation in the food, chemical, and polymer industries. Here we demonstrate the determination of aluminum and sodium in zeolite A without sample preparation by using multinuclear, low-field NMR. The simultaneous determination of aluminum and sodium can be performed in under five minutes with a precision of ∼ 1% relative. The method, calibration, data collection, and significant other applications are discussed.
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