Nanotest Hungary Kft.

CALSA - Új fejlesztésű kompakt multi analizáló kristály nagyfelbontású pordiffrakcióhoz, párhuzamos nyaláb alkalmazásával

A RIGAKU egy új, kompakt, nagyteljesítményű, több tökéletes kristályból álló diffraktált-nyaláb multi-analizáló kristály komponenst (CALSA) mutatott be Glasgow-ban, a PPXRD-8 konferencián. A komponensben a tökéletes Ge(111) kristályok úgy vannak elhelyezve, hogy az egyes kristályok rácssíkjai egybeesnek egy logaritmikus spirális függvény érintő síkjával. Az új komponens kombinálható félvezető gyors detektorral, illetve a RIGAKU CBO technológiával együtt párhuzamos nyaláb alkamazásával érhető el egyedülállóan nagy felbontás. 

Reitveld refinements from an as-obtained rock chunk

Rietveld refinements results, using Rigaku's Ultima IV multipurpose diffraction system, were obtained from a solid rock chunk sample (Figure 1&2) composed of six mineral phases. The XRD data was collected in both the parallel and para-focusing beam geometry.

X-ray diffraction of an over-the-counter pain medication

Figure 1 shows a diffraction pattern of Painaway, an over-the-counter headache product containing caffeine, aspirin (acetylsalicyclic acid), and acetaminophen. This combination of compounds with caffeine makes the product much more effective.

Using the MiniFlex II benchtop XRD system, the individual components can easily be determined.

Non-destructive evaluation of pseudo-polymorphic impurities in a drug tablet

In the tableting process of a pharmaceutical product, the drug sometimes reacts with excipients (inactive substances used as carriers for the drug) such as sugar and starch, or the process induces a dehydration reaction or a polymorphic transition. Scientists involved in the pharmaceutical industry need to determine—as quickly as possible—whether a drug of interest maintains its original crystalline system during the tableting process or if polymorphic impurities are produced.

RIR-based quantitative phase analysis of crystal polymorphism

TiO2 is widely used in white pigments, electronics materials, optical catalysts and UV absorbents. It exists in three polymorphs: rutile, anatase and brookite. The efficiencies of rutile and anatase as optical catalysts are different, so a method to determine the rutile:anatase ratio is needed. The quickest way to do quantitative XRD analysis is to determine the RIR (Relative Intensity Ratio).