Particle SizeEvaluation in Hair Conditioner—Undiluted Measurement of Highly Concentrated Emulsions—

User Benefits

- The SALD-2300 can measure the particle size distribution in undiluted solutions. - Enables the understanding of the effect of dilution on the particle dispersion state.

Introduction

Emulsions are liquid mixtures of two immiscible solvents, such as oil and water, consisting of a dispersion of microparticles of one liquid in the other. Familiar examples of emulsions include hair conditioners, suntan lotion, and mayonnaise. The effectiveness of cosmetics, the texture of food products, and other characteristics can vary depending on the size of the particles in the emulsion. Therefore, product quality and other features can be quantitatively evaluated by measuring the particle size distribution in emulsions. However, due to the thermodynamic instability of many emulsions, slight differences in how they are prepared can change their state or stability. This article describes an example of using a Shimadzu SALD-2300 laser diffraction particle size analyzer to measure undiluted and diluted emulsions.

March 1, 2022 GMT