Measuring Colloidal Stability
Colloidal stability is one of the primary concerns of chemists working with mixtures that are intermediate between homogenous and heterogeneous. This requires two or more distinct phases to
Nanoparticle Distribution Analysis: DLS or ELS?
Nanoparticle Distribution Analysis: DLS or ELS? Particle size and size distributions (PSD) are key metrics in the analysis of particulate and colloidal samples, from raw materials to finished
Outlining Zeta Potential Measurements
Outlining Zeta Potential Measurements Zeta potential measurements are a common protocol when analyzing colloidal systems (beverages, food, inks, paints, pharmaceuticals, etc.). It is a
The Definition of the Mean Value in Particle Characterization
The Definition of the Mean Value in Particle Characterization The mean value is a certain type of average taken over the entire distribution. For example, if there are ten
Quality of Particle Sample Measurement
Quality of Particle Sample Measurement Quality in a particle characterization measurement can be defined using the term “accuracy”, which is composed of both bias and precision.
Formulation Analysis: 4 Factors Affecting Stability
Formulation Analysis: 4 Factors Affecting Stability A formulation is loosely defined as the structured mix of ingredients in a finished product. Typical components include a continuous phase,
How to Measure Powder Uniformity
How to Measure Powder Uniformity Mankind has been breaking down solid materials into their particulate forms for millennia. The resultant powders have served as domestic ingredients for food
The Basic Statistical Numbers in Particle-Size Distribution Analysis
The Basic Statistical Numbers in Particle-Size Distribution Analysis Mean:The mean is an average over the entire distribution. There are different types of means that can be
What is Electrical Sensing Zone Method (ESZ)?
What is Electrical Sensing Zone Method (ESZ)? It is a widely accepted technology in the field of medical technology that presently over 98% of automated cell counters incorporate the ESZ.
Powder Characterization: The Importance of Segregation Mechanisms
Powder Characterization: The Importance of Segregation Mechanisms Powder segregation is defined as the modification of a bulk material’s particle size distribution (PSD) that results in a