Reflex QPA

Reflex QPA allows you to determine the relative proportion of different phases, including both inorganic as well as organic systems, in a mixture based on powder diffraction data. Quantitative phase analysis (QPA) refers to the determination of relative amounts of different phases in multi-phase samples. Reflex QPA is a widely used analytical method for phase characterization in various industries for applications such as the characterization of pharmaceuticals, corrosion products, intermetallics, and contaminants, as well as forensic analysis, mineral assays, and fiber analysis.

In Reflex QPA, the pure component phases that comprise the mixture may be represented by:

 

• Crystal structures (The Rietveld method): The experimental diffraction pattern is characterized as the superposition of powder diffraction patterns simulated from the crystal structures of the component phases
• Experimental powder diffracction patterns: Reflex QPA supports the use of the standardless method (assumes that all the patterns are recorded under identical experimental setup) and the internal standard method (a fixed weight fraction of a standard is added to all pure component phases)