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A better understanding on the particle sizing via dynamic light scattering and zeta potential November 12, 2019; Premiere Research Institute of Science and Mathematics Mindanao State University

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By far the most important physical property of particulate samples is particle size. Measurement of particle size distributions is routinely carried out accross a wide range of industries and is often a critical parameter in the manufacture of many products. The particle size distribution has a direct influence on material properties such as:

  • Reactivity or dissolution rate - e.g. catalyst, tablets
  • Stability in suspension - e.g sediments, paints
  • Efficacy of delivery - e.g asthma inhalers
  • Texture and feel - e.g food ingredients
  • Appearance - e.g. powder coatings and inks
  • Flowability and handling - e.g. granules
  • Viscosity - e.g. nasal sprays
  • Packing density and porosity - e.g. ceramics

Dynamic light scattering (DLS), sometimes referred to as Quasi- Elastic Light Scattering (QELS), is a noninvasive, well-established technique for measuring the size and size distribution of molecules and particles typically in the submicron region, and with the latest technology lower than 1nm.

Typical applications of dynamic light scattering are the characterization of particles, emulsions or molecules, which have been dispersed or dissolved in a liquid. The Brownian motion of particles or molecules in suspension causes laser light to be scattered at different intensities. Analysis of these intensity fluctuations yields the velocity of the Brownian motion and hence the particle size using the Stokes-Einstein relationship.

Registration is free!
Come, see and feel our Zetasizer!

Seminar information

 Date: November 12, 2019

      Time: 08:30 AM – 11:00 AM

 Venue: Premiere Research Institute of Science and Mathematics Mindanao State University
      Andres Bonifacio Ave, Iligan City, 9200 Lanao del Norte, Philippines    

📞  Phone: +63 2 548 3200 Ext. 3267

✉  Email: marketing.tecph@dksh.com (Attn. Lovely Ann Loteria)

Register here

Seminar highlight

This workshop features Malvern Zetasizer which measures particle and molecule size from below a nanometer to several microns using dynamic light scattering, zeta potential and electrophoretic mobility using electrophoretic light scattering, and molecular weight using static light scattering.

Programme

08:30 - 08:45 Registration
08:45 - 09:00 Introduction of DKSH
09:00 - 11:00 Particle size measurement
• Basic theory of size by DLS
• DLS experiment
• Data interpretation
11:00 End of program

Speaker

Mark Mangogtong
Product Specialist
DKSH Philippines Inc.

He is a licensed chemist who has 8 years of experience in analytical analysis focuses on agriculture, mining, foods and material science. He graduated in Visayas State University for BS in Chemistry in 2011. His previous work experience in a testing laboratory for geological samples for 6 years as Shift Supervisor gave him expertise on XRF, AAS, CS analyzer, titration and sample preparation. During his years in his previous company, he was also assigned in a gold mining site. In DKSH, he is assigned as product specialist who handles XRF, XRD, Particle size analyzers, NIRS and fusion.

Featured products

Zetasizer Ultra - Malvern Panalytical

Particle Analyzer - Zetasizer Ultra

The Zetasizer Ultra is our most advanced system for the measurement of particle and molecular size, particle charge and particle concentration, and represents the most intelligent and flexible instrument in the Zetasizer range.

DKSH introduces a major step forward in light scattering characterization by unveiling the brand-new Malvern Panalytical Zetasizer Pro - two flagship systems which deliver the ultimate in particle and molecule size and zeta potential analysis.

Particle Analyzer - Zetasizer Pro

The Zetasizer Pro is a robust and versatile system for the measurement of particle and molecular size and electrophoretic mobility and zeta potential of nanoparticles. It enables size measurements to be performed up to three times quicker, compared to previous models, accelerating sample throughput and freeing up operator and system time for other tasks.

Dynamic Light Scattering Instrument - Zetasizer Nano Range

The Malvern Zetasizer range provides both exceptionally high performance and entry level systems that incorporate combinations of a particle size analyzer, zeta potential analyzer, molecular weight analyzer, protein mobility and microrheology measurements.

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