Home > Inhaler Testing > Aerodynamic Particle Size Distribution (APSD) > APSD of Aqueous Droplet Inhalers (ADIs) > NGI – Next Generation Impactor

APSD of Aqueous Droplet Inhalers (ADIs)

For ADIs as for nebulisers, the evaporation of droplets exacerbated by the thermal mass of the impactor can be a problem. Loss of solvent reduces droplet size, producing artificially low APSD measurements, compromising the integrity of the resulting data. Cooling the impactor to approximately 5°C is the recommended method for overcoming this problem. Classified as active devices, the recommended flow rate for ADI testing is 28.3 L/min for the ACI or 30 L/min for the NGI.

NGI – Next Generation Impactor

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Next Generation Impactor (NGI) Andersen Cascade Impactor (ACI)

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Next Generation Impactor (NGI) Andersen Cascade Impactor (ACI)

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Semi-Automation Tools

Copley supplies a broad range of labour-saving devices and semi-automated systems for Aerodynamic Particle Size Distribution applications.

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How Does a Cascade Impactor Work?

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APSD of Aqueous Droplet Inhalers (ADIs)

Mouthpiece Adapter

NGI Induction Port

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BAC 100i Breath Actuation Controller

LCP6 Low Capacity Vacuum Pump

DFM 2000 Flow Meter

NGI Cooler

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Temperature and Relative Humidity Sensor

Footswitch

NGI Cup Rack

NGI Carrying/Washing Rack

Internal/External Filter Holder

DFM4 Flow Meter

HCP6 High Capacity Vacuum Pump

DDU of Aqueous Droplet Inhalers (ADIs)

Mouthpiece Adapter

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Next Generation Impactor NGI

BAC 100i Breath Actuation Controller

LCP6 Low Capacity Vacuum Pump

DFM 2000 Flow Meter

NGI Cooler

Inhalytix® – APSD Data Analysis Software

Temperature and Relative Humidity Sensor

Footswitch

NGI Cup Rack

NGI Carrying/Washing Rack

Internal/External Filter Holder

DFM4 Flow Meter

HCP6 High Capacity Vacuum Pump

DDU of Aqueous Droplet Inhalers (ADIs)

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