Diaphragm type solid -phase extraction device

The utility model belongs to the separator field especially relates to a diaphragm type solid -phase extraction device, its characterized in that: the one end of transfer line is passed an appearance bottle plug and is inserted and locate go up the inside of appearance bottle and its other end is inserted locates go up on the appearance cup plug, first screen cloth, solid -phase extraction diaphragm, clamping ring install in go up the inside of appearance cup, the inside that connects is provided with the pipe that is linked together last appearance cup, dehydration cup, the blind nut install in the lower extreme of dehydration cup, hydrophobic membrane laminating second screen cloth setting and its the two install in between dehydration cup, the blind nut, the receiving bottle install in on the blind nut and its inside with mesh on the second screen cloth communicates with each other, the vacuum chamber cover is located the outside of joint, dehydration cup, blind nut, hydrophobic membrane, second screen cloth, receiving bottle, the vacuum pump with the upper portion intercommunication of vacuum chamber, the bleeder line install in the lower part of vacuum chamber, the valve that drains install in on the bleeder line.