Patent ID: 8599375

Claim:
An atomic absorption instrument, comprising: a burner; and a mixing apparatus for delivering a combustible mixture to the burner, the mixing apparatus including a mixing chamber assembly including a main body and a plurality of internal delivery passageways extending through the main body towards an end of the mixing chamber assembly, the internal delivery passageways being located between an exterior surface of the main body and an interior surface of the main body, the interior surface defining at least a portion of a mixing chamber through which the combustible mixture flows towards the burner, and an end cap assembly configured to hold a nebulizer, the end cap assembly including a plurality of internal feed passageways through which fluid from the internal delivery passageways flows into the mixing chamber when the end cap assembly is coupled to the end of the mixing chamber assembly, wherein at least one of the internal feed passageways has at least one angled section configured to receive a fluid flow and to redirect the fluid flow towards the mixing chamber.