Patent ID: 9638674
Date: 2017-05-02
CPC Classifications: G01N

Claim:
1. An autosampler comprising: a flow path switching valve to which a sample push unit and an analysis flow path are connected; a sample loop connected to the flow path switching valve; a sampling needle connected to the flow path switching valve; a metering pump connected to the flow path switching valve; and a control unit for controlling operations of the flow path switching valve and the metering pump, wherein the control unit includes an injection/delivery control unit for switching the flow path switching valve on that the flow path switching valve configures a flow path for sample push for injecting a sample in a sample vial from the sampling needle into the sample loop by the metering pump, or a flow path for delivery for delivering a sample injected into the sample loop to an analysis flow path by a solvent from the sample push unit, and an injection volume addition unit for adding up injection volumes of a same sample component injected into the sample loop a plurality of times.