The Malvern Spraytec system is specifically designed for spray characterisation and provides real-time size distribution of spray droplets and aerosols.

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Manufacturer	Malvern Panalytical
Product Series	Malvern Spraytec
Measurement principle	Laser Diffraction
Application	Aerosols – Sprays sizing
Sample type	Sprays, aerosols, droplets, inhalers, nebulisers
Particle size range	0.1 to 900µm and 2 to 2000µm
Accuracy	Better than 1%
Data acquisition rate	10kHz measurements resolve rapid changes
21 CFR part 11	compliant

The Malvern Spraytec system is specifically designed for spray characterisation. It provides real-time size distribution of spray droplets and aerosols.

The Spraytec uses the technique of laser diffraction. A laser beam passes through the spray which scatters the light creating a scattering pattern. The optics measure the angles and intensity of the scattered light and this is used to calculate the droplet size distribution.

The Spraytec system is made up of a laser module, a detector module and an optical bench to mount and align the laser and detector modules.

The Spraytec software controls the measurement process and analyses the light scattering data to calculate spray size distributions.The results are displayed as a ‘size history’ trend plot showing droplet size changes over time. Measuring parameters can be incorporated into Standard Operating Procedures (SOPs).

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Benefits Applications Accessories

Accurate spray Sizing: over a dynamic range of 0.1 – 2000 microns using just two lens systems.
Rapid Measurements: one measurement every 100 microseconds (10kHz) fully captures transient changes in both pulsed and continuous sprays.
High Concentration: patented multiple scattering correction ensures spray measurements can be made even at high concentrations.
Reproducible simple operation: Measuring parameters can be incorporated into Standard Operating Procedures (SOPs). Prompts ensure correct sample preparation, handling and analysis settings to deliver reliable results.
Regulatory compliance: The software provides technical compliance to the requirements of 21 CFR Part 11 and ISO 13320:2009, the international standard for laser diffraction measurements.

Orally inhaled and nasal drug products
Formulations can be screened rapidly for the desired spray properties reducing development times and improving drug delivery efficacy.

Routine atomizer characterisation
Spraytec’s rugged design and multiple scattering analysis ensures measurements can be made at high concentrations directly within a spray plume. This provides a greater understanding of the environmental impact of spraying in coatings or agrochemical applications.

Automotive applications
Spraytec can be used to measure the fluctuations in droplet size observed during rapid firing of automotive fuel injector systems and provide data related to combustion efficiency.

Aerosol Positioning Accessory

This reproducibly positions aerosol cans to eliminate source variability.

Air Purge Accessory

This prevents sprays contaminating the optics while measuring wide spray plumes.

Extraction Accessory

This captures sprays after measurement to prevent user exposure to spray droplets.

Inhaler and Nebulizer Accessory

To measure metered dose inhalers, dry powder inhalers and nebulizers.

Nasal Spray Accessory

For measuring nasal drug delivery devices.

Wet Dispersion Accessory

For measuring samples in non-aqueous dispersants

Spraytec

Customer installations

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Monash University

Spraytec

Monash University, Department of Mechanical and Aerospace Engineering has installed their Malvern Panalytical Spraytec which uses laser diffraction for the measurement of the size of spray droplets and spray particles. The research group will use the Spraytec to study spray atomisation and aerosol formation in applications such as fuel injection systems (for internal combustion engines, gas turbines and rockets) and pharmaceutical sprays such as metered dose inhalers, nebulisers other medical devices.

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Spray Nozzle Engineering

Spraytec

Spray Nozzle Engineering have installed a Malvern Spratec which uses laser diffraction for the measurement of the size of spray droplets and spray particles. The company will use the Spraytec in the development of unique patented spray nozzles and wash down solutions such as tank cleaning nozzles, air guns, spray guns and check valves.

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Woolcock Institute

Spraytec

The Woolcock Institute has installed two new Malvern laser diffraction systems to be used for pharmaceutical particulate characterisation. The new Spraytec enables real time particle size distributions for sprays and aerosols, while the latest Mastersizer 3000 offers highest resolution for wet and dry sample measurements.

About the lab

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