Known candidate phases
Routine crystalline mixtures with suitable CIF structures and sufficient diffraction quality.
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Rietveld quantitative analysisXRD quantitative phase analysis
Estimate crystalline phase weight fractions from existing powder XRD patterns, compare composition across sample series, and add internal-standard amorphous analysis when the experiment supports it.
Multi-phase quantificationPhase contributions are fitted across the measured pattern.
Series comparisonConsistent models and tables for treatment or composition groups.
Auditable deliveryFitting plots, phase fractions and refinement indicators.
Suitable project types
Comparative sample series
Track phase-fraction changes with temperature, composition, reaction time, corrosion or other treatment variables.
Crystalline plus amorphous
Use a known internal-standard addition to estimate non-crystalline or unmodelled material when sample preparation is documented.
Information needed for a defensible result
Original XRD patternRaw numeric intensity data are preferred over exported images.
Expected chemistryElements, synthesis route, treatment history and known or suspected phases.
Structure modelsCandidate CIF files or references; uncertain phase lists require additional screening.
Internal-standard recordStandard identity, purity, addition fraction, calculation basis and mixing procedure.
Important: standardless Rietveld fractions describe the modelled crystalline phases. Absolute amorphous content requires an appropriate standard strategy or another validated basis.
What you receive
Quantitative result package
Observed/calculated/difference plots, Bragg positions, phase weight fractions, cell parameters and fit indicators for each sample.
Comparison-ready tables
Consistent sample naming, phase-composition tables and editable data suitable for figures, reports or manuscript discussion.
Routine quantification pricing
The listed entry price applies to suitable crystalline mixtures with known candidate phases. Amorphous content, complex screening, severe overlap, poor crystallinity and extensive reporting are quoted after review.
US$30 / sample
Submit for confirmationCommon questions
Can you quantify a phase that is not included in the model?
No reliable method can quantify an omitted crystalline phase correctly. The phase list and residual peaks are reviewed before final reporting.
How accurate are the reported percentages?
Uncertainty depends on data quality, preferred orientation, microabsorption, structural models, overlap and sample preparation. Results are reported with these limitations in mind.
Can multiple samples be compared directly?
Yes, provided measurement conditions and model choices are sufficiently consistent. Batch projects are organised with common naming, plots and tables.
Upload the sample series for review
Include the expected phases and sample conditions. You will receive a confirmed scope and payment request before analysis starts.
Submit XRD files