A new and inexpensive batch-type ultrasonic nebulizer which is based on a common room humidifier has been developed. The aerosol generation rate is shown to be much higher than that of pneumatic nebulizers and hence the detection capabilities of ICP and microwave plasma-AES are significantly enhanced when they are combined with this new nebulization system. Under optimal conditions the stability and precision of the system are comparable with those of commercial ultrasonic nebulizers.
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