Automatic evaporator system

A flask fastening device comprising:

• a flask connector connected to a condenser and comprising a connector hole communicating with a sample inlet of the condenser;
• and
• at least one gripper connected to the flask connector, the at least one gripper configured to:
• rotate about a rotation axis in a first rotation direction and a second rotation direction opposite to the first rotation direction;
• grip a flask to be held to the flask connector when rotating in the first rotation direction about the rotation axis, and
• separate the flask that is contacting the flask connector from the flask connector when rotating in the second rotation direction about the rotation axis.

An automatic evaporator system, comprising:

• a flask comprising a flask inlet;
• a condenser comprising a sample inlet;
• and
• a flask fastening device comprising:
• a flask connector comprising a connector hole in communication with the condenser;
• and
• at least one gripper connected to the flask connector,
• wherein the at least one gripper is configured to:
• rotate about a rotation axis in a first rotation direction, thereby moving the flask from a first position at which the flask inlet is separated from the connector hole to a second position at which the flask inlet contacts the connector hole and is in communication with the sample inlet;
• and
• rotate about the rotation axis in a second rotation direction, thereby moving the flask from the second position to the first position.