Solid sampling modes in electrothermal vaporizers and atomizers

Solid sampling modes in electrothermal vaporizers and atomizers 

Solid samples can be introduced into electrothermal atomizers either as such or as slurries. Each insertion mode has its own features, advantages and disadvantages. 

With Massmann-type electrothermal atomizers, the solid sample can be introduced into the furnace either through a central hole in it or from the ends of the graphite tube. The use of this type of furnace in this sampling mode poses problems such as cumbersome 

Devices for treatment prior to introduction into atomic spectrometers 

A more advantageous approach uses a graphite support (a platform, boat, microboat, cup or probe) for both weighing and atomization. The use of inert supports made of ashless paper and cellulose acetate has also been tested [33]. However, inert supports tend to give high blank values also, the residue remaining after atomization can degrade accuracy and reduce the atomizer lifetime. 

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