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Crystals and polymorphs

Crystalline structures are present in all classes of material including proteins, metals, and pharmaceuticals. If a substance exists in more than one crystal form then it is polymorphic. Different polymorphs can form due to changes in crystallization, temperature, processing or reaction time. Polymorphs can vary in their chemical, physical or material properties which can affect the quality, safety and efficacy of the final products. It is vital to be able to characterize and understand crystals and polymorphs of a substance in terms of particle size, shape and chemistry.

Malvern’s easy-to-use particle size, particle shape and chemical identification and rheology systems, combined with its industry and applications knowledge, can be used to help with characterization of polymorphs.

Applications include:

  • Optimization of crystallization process
  • Identify and qualify different polymorphs in mixtures
  • Identify critical to quality parameters

Malvern solutions for Crystals and polymorphs



Automation of QC microscope measurements of pharmaceutical ointment using the Morphologi G2 In Quality Control (QC) procedures many pharmaceutical companies rely on microscope-based analyses to identify, qualify and or quantify...
Identification of polymorphic crystal forms using the Morphologi G2. Monitoring batch crystallisation processes with the Morphologi G2 shape parameters allows rapid, cost effective polymorphism characterisation...
Measurement of Nanometer Scale Cadmium Selenide Nanocrystals and Cluster-Molecules High performance Dynamic Light Scattering (DLS) has been used to determine the hydrodynamic diameters of CdSe nanocrystals as well as CdSe...
Scoopability! Characterising ice cream using a rheometer Published in Innovations in Food Technology August 2005. Rheometry can be used to accurately quantify the ease of handling of cold ice cream...


 
 
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