Ultrasound-Assisted Slurry Formation

Slurries can be inserted into an atomic spectrometer by hand, via an autosampler or through a flow injection manifold. When autosampler cups are used to weigh the solid sample, the maximum volume of slurry that can be inserted is limited to the cup volume (about 2 ml), which in turn dictates the maximum amount of material that can be suspended. Once the solid sample and the liquid are brought into contact, the solid must distribute evenly in the volume of liquid. 

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Types of devices for ultrasound-assisted slurry formation... 

Ultrasound-assisted slurry formation followed by cold-vapour or hydride generation... 

Ultrasound-assisted slurry formation versus other sample preparation methods... 

Some contradictory results are obtained in the comparison of results in the determination of arsenic after ultrasonic slurry sampling — the use of sampling is not most appropriate in this case as the sampling step is before the slurry formation — ultrasound-assisted extraction — leaching has been the correct word in this case — and microwave-assisted digestion [28], which will be treated in detail in Chapter 5. 

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