TSI 3480 Electrospray Aerosol Generator

Description of TSI 3480

The Electrospray Aerosol Generator (EAG) produces high concentrations of monodisperse, submicrometer particles from 2 to 100 nm (initial droplet diameter of 150 nm, nominal). The Electrospray pushes a charged liquid solution or suspension through a capillary tube and exerts an electrical field on the liquid at the capillary tip. The electrical field pulls the liquid from the capillary, forming individual droplets. Air and CO2 mixed with the droplets evaporate the liquid and the remaining particles are neutralized by an ionizer.

Applications
The successful use of the electrospray method to generate monodisperse aerosol has been documented in many publications. Although the basic principles are well understood, many of the fine details explaining how different operating parameters affect the
electrospray method remain to be discovered. Known applications for this instrument include:

• Instrument calibration
• Nano-aerosol studies
• Macromolecular and submicrometer aerosol analysis
• Nanometer-sized powder dispersion

Features and Benefits

• Generates particles from 2 to 100 nm in diameter
• Particles are uniform in size and shape

Technical specifications of TSI 3480

Settings and Requirments

• Particle generation rate: >107 particles/cm3
• Liquid conductivity: 0.2 S/m nominal
• Liquid flow rate: 50 to 100 nL/min
• Particle size range: <3 to >100 nm
• Initial droplet diameter: 150 nm
• Differential pressure: 0 to 5 psi (3.0 psi nominal)
• Air flow: 0.2 to 2.5 L/min (1 L/min nominal)
• CO2 flow: 0.05 to 0.5 L/min (0.1 L/min nominal)

Power Specifications

• Charger: Po-210, 5 millicurie*
• Voltage range: +0.5 to +3.5 kV (2 kV nominal, negative high-voltage module available)
• Current range: 0 to 2000 nA (180 to 320 nA nominal)
• Power requirements: 85 to 264 VAC, 50 to 60 Hz, 25 W maximum

Product Specifications

• Dimensions: 20.3 x 40.4 x 25.7 cm (8.0 x 15.9 x 10.1 in.)
• Weight: 6.8 kg (15 lb)