Automatic sample preparation before the direction of

摘要

An automatic sample preparation device for use in flameless atomic absorption spectroscopy or the like, wherein samples to be examined for a particular element are successively mixed with graduated, metered additions of the element to be determined, which includes, in combination, controlled delivery pumping apparatus, a storage vessel system containing dilution agents connected to the inlet side of the pumping apparatus, a dosing probe connected to the outlet side of the pumping apparatus, a stepwise movable carrier, a plurality of sample containers mounted on the carrier, a sample withdrawing device for withdrawing samples from the carrier, and a control unit for moving the dosing probe with respect to the carrier so that one group of at least two successive sample containers on the carrier can be simultaneously mixed with graduated, metered additions of the element to be determined prior to sample withdrawal.