The majority of the chemical elements
can be identified by polarographic analysis, 
and the method is applicable to the analysis 
of alloys and to various inorganic compounds. 
Polarography is also used to identify numerous 
types of organic compounds and to study chemical 
equilibria and rates of reactions in solutions.

Typical applications of tube furnaces include 
the purification, coating, drying, hardening 
or ageing of samples. Among other uses, a tube 
furnace can also be used for annealing, brazing, 
calcination, degassing, sintering, soldering, 
sublimation, synthesis, and tempering