SAMPLING HEAD, SAMPLING SYSTEM, MASS SPECTRUM IMAGING DEVICE AND SAMPLING METHOD

摘要

Disclosed are a sampling head, a sampling system, a mass spectrum imaging device and a sampling method. The sampling head comprises: a sampling body; a sampling cavity (200), wherein the sampling cavity (200) is provided in a first end face of the sampling body, and the sampling cavity (200) and a sampled surface form a sampling area; a first flow channel (300) for injecting an extraction agent; and a second flow channel (400) for injecting air and a third flow channel (500) for leading out sampling liquid drops. The sampling head comes into direct contact with the sampled surface, sampling can be achieved without in-vitro sampling, a liquid drop extraction manner is used, the sampled surface will not be damaged, the sampling cavity (200) is close to the sampled surface, the concentration of the collected sample liquid drops is improved, the possibility of losing key compound information is reduced, and the sampling quality is thus improved.