Constant temperature, multiple sample, rotary changer

Abstract From the Canadian patent

A rotary sample changer for a spectrofluorometer has a revolving turret base which can be indexed and which carries an interchangeable sample carrier. Different sample carriers accommodate test cells, test tubes and cuvettes of different sizes and shapes. The revolving turret base and the interchangeable rotary sample carriers are constructed of material having good thermal conductivity and rotate on a large stationary hollow axle which is thermostated by thermally controlled internal fluid circulation to act as a heat source or sink to the samples. Thus the sample carriers can readily be interchanged without disturbing the plumbing by which the thermostatic fluid is circulated. The …