Microscale Organic Laboratory Corporation

Ronald M Pike

Dana W Mayo

Robert J Hinkle

Spinning band fractionating column apparatus is disclosed having a spinning band formed with a magnet embedded in its bottom end in the manner of a magnetic stirring vane for rotation by a rotating external magnetic field at the bottom of the apparatus. Reflux is controlled by an angled drip edge on a rotatable condenser column that passes a portion of dripped condensate to a collecting spout with the portion varying as rotation of the condenser column brings the drip from said edge closer or further from center opposition with the spout.

Spinning band fractionating column

Apparatus and a process for collecting the output of a gas chromatograph are disclosed in which a heat sinking adapter at the output port of a gas chromatograph is connected to a collection tube having bulbous enlargements for collecting condensate and a ground tapered end for making a tapered seal to a tapered throat in the adapter. A collection vial with a conical cavity and having the same tapered throat as the adapter accepts a transfer of the collection tube from the adapter and is suited for direct installation into a centrifuge. The disclosure is of particular interest in microscale preparative gas chromatography.

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Pelham, NH, United States of America

Ronald M Pike