G - Physics – 01 – N
Patent
G - Physics
01
N
73/51.5
G01N 21/64 (2006.01) B01F 9/00 (2006.01) B01L 7/00 (2006.01) G01N 21/76 (2006.01)
Patent
CA 1090607
TEMPERATURE CONTROL AND STIRRING APPARATUS FOR LUMINESCENCE MEASURING PHOTOMETER ABSTRACT OF THE DISCLOSURE The apparatus is incorporated in a photometer utilized for measuring luminescence from a liquid sample containing adenosine triphosphate (ATP) and includes a cavity in a rotatable sample tube carrier inside a reaction chamber of the photometer and ports in the wall of the carrier communicating with the cavity, the ports being connected via tubing to a constant temperature liquid circulation system. The apparatus also includes a mechanism for rotating a sample tube received in the sample tube carrier when the sample tube carrier is rotated from a position outside the chamber to a position within the reaction chamber where a reagent can be inserted into the tube. The rotating mechanism provides for thorough stirring and mixing of the liquid contents of the sample tube and includes a rotatable journaled socket member at the bottom of the opening in the carrier for receiving the sample tube. This socket member has a friction surface in a socket cavity thereof for engaging and holding the sample tube in place and a friction surface on the exterior thereof which engages a rotatably driven shaft when the tube is moved to the position within the reaction chamber for receiving a reagent. - 1 -
294230
Baxter Travenol Laboratories Inc.
Macrae & Co.
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