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XRD analysis in combination with the Rietveld method enables the quantification of crystalline and amorphous phases. Different procedures for determination of amorphous contents are described like internal and external standard method and hkl approach. In this article applications for the analysis of blended cements as well as for complex hydrated systems containing cement, blast-furnace slag and fly ash are shown. [ABSTRACT FROM AUTHOR]

Discusses the critical importance of the various phase ratios in the rheological properties of the tripolyphosphate (TPP). Chemical analysis and loss on ignition of TPP; Use of Rietveld quantitative analysis; Deflocculant capability of sodium TPP.

The article reports on the alternative toxicity testing conducted by a group of Spanish researchers which revealed that Rietveld method applied to an X-ray diffraction (XRD) can reduce the cost associated with animal testing.

A company profile of Newtown Square, Pennsylvania-based non-profit scientific organization International Centre for Diffraction Data (ICDD) is presented. It highlights the company description, chief spectroscopic procedures and markets served. Also emphasized is the company's major products and services offered such as rietveld analysis, reference intensity ratio (RIR) method, or total pattern analysis.

The article discusses the challenges in the quantitative mineral phase evaluation of process dusts. It says that the using the Rietveld method often has inaccurate results and the X-ray diffraction cannot always described clearly some other phases due to their variable composition. It states that the phases with limited crystallinity, the peak superimpositions and the phase contents near X-ray detection limit make the evaluation more difficult.