Study illustrates Morphologi G3-ID Application for Inhaled Product Characterization

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29 November 2012: Malvern, UK: A recent experimental study demonstrates the ability of the Morphologi G3-ID particle characterization system from Malvern Instruments to efficiently generate component-specific particle size information for orally inhaled and nasal drug products (OINDPs), to support both abbreviated and new drug applications. A report describing the study is available for download from the Malvern website:

The Morphologi G3-ID from Malvern Instruments

By combining automated particle imaging with Raman spectroscopy the Morphologi G3-ID provides a single platform for the measurement of particle size, shape and chemical identity. For OINDP formulations this enables the differentiation of morphologically identical active ingredients and extraction of the particle size information needed to more exactly understand and control product performance. Particle size data for a single active ingredient rather than for the complete formulation are required to fulfil a number of regulatory requirements and in some instances to prove bioequivalence. Furthermore, the detection of foreign particles within the formulation, which is also essential, can be achieved in a strictly analogous way.

In the experimental study a dry powder inhaler containing two active ingredients was characterized. Raman spectroscopy was applied to particles in the sub-ten micron fraction of the dose, as identified on the basis of size data, and the results were compared with reference spectra to identify particles as one active or the other. Particle size distribution data and shape parameters proved closely similar for both actives, but by enabling chemical differentiation, the Morphologi G3-ID was able to correctly quantify the amount of each in the respirable dose.

To find out more about the G3-ID and how its capabilities complement existing techniques for inhaled product testing visit

About Malvern Instruments

Malvern Instruments is a market leader in measuring performance controlling material properties. These include particle size, particle shape, zeta potential, molecular weight, size and conformation, rheological properties and chemical identification. Malvern delivers the systems, support and expertise that ensure the analytical integrity and productivity needed to drive research, development and manufacturing.

Malvern’s measurement solutions for scientists, technologists and engineers advance continually through customer collaboration. Complementary materials characterization systems deliver inter-related measurements that reflect the complexities of particulates and disperse systems, nanomaterials and macromolecules. Combining intelligently implemented technologies with in-depth industry applications knowledge and support, Malvern provides customers with the competitive advantage they demand.

Headquartered in Malvern, UK, Malvern Instruments has subsidiary organizations in all major European markets, North America, China, Japan and Korea, a joint venture in India, a global distributor network and applications laboratories around the world.

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