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Nanoparticles
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Particle Size
Fully automated analysis of particle size distribution and particle shape analysis
One of the most fundamental measurements for the particle technologist is the measurement of particle size distributions. While the concept of ‘particle size’ is a simple one to understand, the practice of obtaining reliable and accurate particle size measurement and distribution is more complex. Particles are rarely simple geometric shapes, and describing an irregular shape and converting this into a ‘size’ is a challenging task. Couple this with the fact that particles may cover a wide range of sizes; from nanometres to millimetres, and the complexities of obtaining good dispersions of particles, and a picture starts to emerge of the difficulties involved in obtaining reliable particle size data.
Quantachrome UK offers a range of advanced particle size analysis techniques, and we support these with a team of highly trained and experienced technologists to help identify the most suitable technique for a given application.
Particle Size Measurement Techniques
- Laser diffraction analysis - uses the angle of diffraction and intensity of a laser beam to calculate particle size distribution. CILAS’s range of laser granulometers can quickly and simply determine the full particle size distribution of particles in both LIQUID DISPERSION and DRY POWDERS.
- Dynamic light scattering - the fluctuation in intensity of scattered light at different angles is measured to determine particle size. The Cilas Nano DS uses a combination of Static Light Scattering (SLS) and Dynamic Light Scattering (DLS).
- Acoustic spectroscopy - particle size is calculated from the transmitted energy versus frequency profile of ultrasonic pulses. Dispersion Technology’s range of acoustic analysers allow the analysis of highly concentrated particle suspensions without the need for dilution, and the analysis of particles down to the nanometre level.
Particle Size Analysers
- CILAS - CILAS’ state of the art laser particle size analyzers include features such as our patented short optical bench, intuitive software interface and a 2 in 1 design which effortlessly integrates wet and dry modes in the same system. CILAS particle size analyzers work on determination and on control of the particle size in powder matter, in suspension or in emulsion. Its solutions meet the needs of various fields like cement, ceramics, manufacturing industries, pharmaceuticals, cosmetics, biology, food or environmental industries..
- Dispersion Technology - Scientific instrumentation for heterogeneous system characterization is a major business area. Dispersion Technology Inc has developed and is currently marketing a family of instruments based on ultrasound for characterizing particle size distribution, zeta potential, rheology, solid content and porosity in concentrated dispersions such as CMP slurries, nano-dispersions, ceramic slurries, battery slurries, cements, pharmaceutical emulsions and in porous bodies. .
For more information contact us.
Particle Size Research Papers
Review recent papers citing use of Cilas and Dispersion Technology particle size analysis instruments:
TITLE: Development of eco-efficient micro-porous membranes via electrospinning and annealing of poly (lactic acid)
AUTHORS: Lin Li, Hashaikeh, Arafat - Masdar Institute of Science and Technology, UAE
INSTRUMENT: DT-1201
USAGE: particle size distribution of TiO 2 was measured ... in a
custom-built gas-tight vessel at room temperature.
View paper
TITLE: Lanthanum-strontium copper silicates as intense blue inorganic pigments with high near-infrared reflectance
AUTHORS: Jose, Lakshmipathi Reddy - National Institute for Interdisciplinary Science and Technology (NIIST), India
INSTRUMENT:Cilas 930
USAGE: Particle size distribution analysis of the pigment sample was performed in water medium with calgon as the dispersing agent
View paper
TITLE: Prediction of energy effective grinding conditions
AUTHORS: Breitung-Faes, Kwade - TU Braunschweig, Germany
INSTRUMENT: DT-1200
USAGE: The particle size was measured using ultrasonic spectroscopy
View paper
TITLE: On the influence of silica type on the structural integrity of dense La9.33 Si2Ge4O26 electrolytes for SOFCs
AUTHORS: Alves, Marcelo, Oliveira, Alves, Mascarenhas, Trindade - Laboratório Nacional de Energia e Geologia I.P., Portugal
INSTRUMENT:Cilas 1064
USAGE: Particle size distribution of the raw materials (as-received and after milling) and of the mechanical alloyed oxyapatite powders was determined by laser scattering
View paper
TITLE: Acid–Base Site Detection and Mapping on Solid Surfaces by Kelvin Force Microscopy (KFM)
AUTHORS: Gouveia, Bernardes, Ducati, Galembeck - University of Campinas—UNICAMP, Brazil
INSTRUMENT: DT-1200
USAGE: average particle size in aqueous dispersion is 293 nm and zeta potential is -25.2 mV, both measured at pH 7.8 by acoustic and electroacoustic techniques, respectively
View paper
TITLE: New anode material based on SiO-Sn30Co30C40 for lithium batteries
AUTHORS: Bo Liu, Abouimrane, Yang Ren el al - Argonne National Laboratory, USA
INSTRUMENT:Cilas 1090
USAGE: particle size distributions of the UHEM and SPEX samples were determined by a Cilas 1090 particle size analyzer (PSA), with a measurement range of 0.04-500 m.
View paper
TITLE: Synthesis and Characterization of Nanosized Pectin‐Based Formulations
AUTHORS: Zakharova, Kydralieva, Khudaibergenova et al - Moscow Aviation Institute, Russia
INSTRUMENT: DT-1201
USAGE: The particle size distribution was analyzed regarding their attenuation spectra using the acoustic spectrometry
View paper
TITLE: Effect of microparticulated wheat bran on the physical properties of bread
AUTHORS: Bum-Keun Kim, Ah-Ra Cho, Yong-Gi Chun, Dong-June Park - Korea Food Research Institute, South Korea
INSTRUMENT:Cilas 1064
USAGE: Mean particle size was determined using a laser diffraction particle size analyse
View paper
TITLE: The Role of Binder Adsorption for High Solid Loading Nano‐Zirconia Extrusion Pastes
AUTHORS: Burghardt, Satet1, Eisele, Hoffmann -Robert Bosch GmbH, Germany
INSTRUMENT: DT-1200
USAGE: The powders were produced by the flame pyrolysis process that produces highly dispersed nanopowders. The particle size distributions were measured using an electroacoustic spectrometer
View paper
TITLE: Ceramic colorant from untreated iron ore residue
AUTHORS: Oscar Costa Pereira, Adriano Michael Bernardin - UNESC, Brazil
INSTRUMENT:Cilas 1064
USAGE: The particle size distribution was carried out by laser diffraction (0.04-500 μm) in water after ultrasound preparation.
View paper
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