Patent ID: 7195229

Claim:
An automatic sampler comprising: a sampling needle for drawing in and collecting a liquid sample; an injection port having a needle seal with a through-hole in its center and into which said liquid sample is injected by said sampling needle; a flow path-switching valve for performing switching of a flow path; a first pump for communicating a suction force to said sampling needle when said flow path-switching valve is in a first position so as to draw in and collect the liquid sample with the sampling needle; a second pump for pressurizing the collected liquid sample so as to inject the liquid sample from said needle into said sample port when said flow path-switching valve is in a second position, wherein, when said flow path-switching valve is in said second position said second pump is connected to both said sampling needle and said injection port by a flow path through said flow path-switching valve, wherein said injection port is incorporated in said flow path-switching valve, and a front end of the sampling needle and the needle seal are fitted to one another.