Vacuum fusion is an
analytical chemistry
Analytical chemistry studies and uses instruments and methods to separate, identify, and quantify matter. In practice, separation, identification or quantification may constitute the entire analysis or be combined with another method. Separati ...
technique, used for determining the oxygen, hydrogen, and sometimes nitrogen content of metals. While ineffective when used on
alkali
In chemistry, an alkali (; from ar, القلوي, al-qaly, lit=ashes of the saltwort) is a basic, ionic salt of an alkali metal or an alkaline earth metal. An alkali can also be defined as a base that dissolves in water. A solution of ...
or
earth metals, vacuum fusion remains a viable means when applied to almost all other metals.
Analytical chemistry
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