Patent ID: 9222920
Filing Date: 2015-12-29
Classification: G01N

Abstract:
1. An elemental analyzer comprising: an extraction furnace adapted to heat a sample contained in a crucible, and gasify an element contained in the sample into sample gas; an introduction flow path adapted to introduce carrier gas into the extraction furnace; a lead-out flow path adapted to lead out mixed gas from the extraction furnace, the mixed gas is that the sample gas and the carrier gas are mixed in; an elemental analysis part that is provided in the lead-out flow path and analyzes elements contained in the mixed gas; a bypass flow path that branches from the introduction flow path and joins the lead-out flow path; a valve that is provided in the bypass flow path and whose opening level is adjustable; a dust filter between the extraction furnace and the elemental analysis part in the lead-out flow path; and a junction that is provided between the dust filter and the elemental analysis part in the lead-out flow path, the junction being a merging point of the lead-out flow path and the bypass flow path, wherein the bypass flow path is provided so as to join the lead-out flow path on a downstream side of the dust filter.