Abstract: This invention deals with a composite electromotive apparatus utilizing solar energy and the like, comprising composite electromotive elements such as a thermoelectromotive unit, a photovoltaic unit, a magnetic electromotive unit utilizing convection, radiation, and/or other phenomena and so forth, to aim to gain electromotive even if momentarily small but as often as possible, with less limits in spite of any conditions, environment, etc., but without taking huge spaces and the like.

Abstract: A method of performing biological analysis of a liquid sample using a one-piece plastic container (1), said container being compartmented to provide a storage chamber (4) for the sample, a calibrated cell (6), and a plurality of storage chambers (30, 40, 50) for various liquids such as a conjugate liquid, a substrate liquid, and a blocking liquid. A succession of centrifuging operations serve to successively pass the sample and said liquids into a reaction vat (11) containing a bead (17) which is initially covered in antigens or antibodies. Means are also provided for rinsing the bead (17).