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particle-size.co.uk

Particle Size Distribution

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Quantachrome UK Ltd - 2010. Particles are far from identical whether in solid or liquid form, and therefore the particle size distribution and average particle size become the important measurements. Manufactured materials are typically polydisperse (or polysized), i.e. composed of particles of varied size and mass. ISO 9276 - Representation of results of particle size analysis. Part 1: Graphical representation. Part 3: Adjustment of an experimental curve to a reference model.

particle-size.co.uk

Nanoparticle Creation

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Quantachrome UK Ltd - 2010. The extraordinary properties of nanoparticles are of significant interest to pharmaceutical, energy and chemical companies. As well as top-down creation of nanoparticles using particle size reduction techniques, it is also possible to create nanoparticles bottom up using continuous crystallization, chemical reactions and process intensification. Alternative nanoparticle fabrication methods include:. Increase in the ratio of surface area to volume.

particle-size.co.uk

Pharmaceutical Particle Size Reduction

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Pharmaceutical Particle Size Reduction. Quantachrome UK Ltd - 2010. Quantachrome UK offers a range of Microfluidics products for uniform particle size reduction in the pharmaceutical industry including nanoemulsions, dispersions, nanoencapsulation and cell disruption. By reducing particle size uniformly, Microfluidics helps pharmaceutical leaders improve the quality, bioavailability, stability and process efficiency of their drugs. High shear particle size reduction. Uniform particle size distribution.

particle-size.co.uk

Particle Size Measurement

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Quantachrome UK Ltd - 2010. Once the theory of defining particle size and distribution is agreed, there is then the practical method of measuring the sample to be considered. In practice, obtaining reliable and accurate particle size measurement and distribution is complex. Key points to consider when selecting scientific equipment for particle size analysis:. From nanometres to millimetres. Eg liquid dispersion, dry powders. Needed to measure sample? Ability to measure conducting particles.

particle-size.co.uk

Particle Size

http://particle-size.co.uk/index.html

Quantachrome UK Ltd - 2010. Particle size is one of the most fundamental measurements for the particle technologist, however, unlike in the macro world where size is easy to understand, in the micro world particle size is less easy to define, and even harder to measure. What is the size of a particle? Particles are rarely simple geometric shapes, and describing an irregular shape and converting this into a ‘size’ is a challenging task. For more information on particle size.

particle-size.co.uk

Particle Size Reduction

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Quantachrome UK Ltd - 2010. Particle size reduction is an important process in the production of a wide variety of products including pharmaceuticals, foods and chemicals, as well as large scale industrial applications such as mining. The reduction in size may be required to create particles in a certain size and shape or to increase the surface area available for a subsequent process. Pharmaceutical Particle Size Reduction. Hardness (measured on the Mohs scale), brittleness and abrasiveness.

particle-size.co.uk

Particle Size Analysis

http://particle-size.co.uk/particle-size-analysis.html

Quantachrome UK Ltd - 2010. Several techniques are available to measure particle size and particle size distribution. The selection of the most appropriate technique should be based on speed, cost, accuracy and material size and characteristics. The most popular industrial method for particle size distribution based on light scattering and knowledge of optical properties of the material. Image analysis and shape analysis. Measurement of particles in concentrated colloidal systems. Limited by size of mesh.