Procedure for assuring the identification of samples when sample containers are transferred

In a procedure for assuring the identification of samples when transferring samples into a sample support (1) of an analysis apparatus, a sample container is insertable into the sample support at one desired location only. The computer of the analysis apparatus has stored the address of each sample in its memory and moves the sample support (1) to make the appropriate location accessible through the aperture (4) in cover 6. When this takes place in the order in which the samples were presented, all confusion of samples will be avoided. The sample locations (2) may be in a series of nested rings, when the cover (6) has only one aperture for each ring.