Which materials can be analyzed by a laser diffraction particle size analyzer?

Dry powders, liquid suspensions, and liquid/particle sprays can be analyzed by a laser diffraction particle size analyzer. The dry powder can be introduced using a dry dispersion module, in which the dry powder is sucked into the measurement zone due to the presence of a Venturi device. Alternatively, the dry powder can be added directly to the wet dispersion module or prepared as a liquid suspension. However, the prerequisite is that the dry powder is insoluble in the medium and does not react with the medium. Some materials can be introduced through a wet dispersion module or a dry disperser. The choice of which one to use depends on the repeatability and accuracy of both sets of measurements.

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