Sample holder, analysis system, and method for analyzing sample

A method for analyzing a sample, comprising:

• preparing a sample holder including:
• a sample chamber including a surface having a through hole;
• a laser guide extending in a first direction crossing the surface of the sample chamber between a first end connected to the through hole and a second end opposite to the first end, a window capable of transmitting a laser beam being provided at the second end of the laser guide;
• a first introduction pipe provided on a first side of the sample chamber;
• and
• a delivery pipe provided on a second side of the sample chamber;
• mounting the sample in the sample chamber along the surface;
• enclosing the sample chamber;
• introducing a gas into the sample chamber from the first introduction pipe;
• applying a laser beam from a light source toward a first region of the sample through the window and the laser guide;
• delivering, from the sample chamber, a substance released from the sample by application of the laser beam;
• changing a relative position of the laser guide with respect to the sample;
• applying the laser beam from the light source toward a second region of the sample through the window and the laser guide, the second region being different from the first region;
• and
• analyzing the delivered substance by an inductively coupled plasma method.