Process of delivering samples and reagents
First Claim
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1. A process of delivering each of successive samples and at least one reagent selected from a plurality of reagents into each of successive reaction vessels by means of a common delivery device comprising:
- a step of aspirating a given amount of a sample into a probe of the delivery device;
a step of discharging the aspirated sample into a reaction vessel;
a step of aspirating a given amount of a given desired reagent selected from the plurality of reagents into the probe of the delivery device;
a step of discharging the aspirated reagent into the reaction vessel; and
a step of washing inner and outer walls of the probe or a liquid path connected to the probe of the delivery device with wash-liquid or diluent, the washing of the outer wall of said probe being effected by moving the probe in the wash-liquid or diluent, and this washing step being interposed between the sample or reagent aspirating step and the sample of reagent discharging step.
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Abstract
A process of delivering a given amount of a sample and one or more reagents into a reaction vessel by means of a common delivery device which includes a single aspiration-discharge pump and a single probe, without contamination between samples and reagents, wherein a washing step of clearing an outer surface of the probe chip by immersing it into a wash-water, preferably a diluent, is introduced between an aspiration step and a discharge step or between the discharge step and the aspiration step.
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Citations
8 Claims
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1. A process of delivering each of successive samples and at least one reagent selected from a plurality of reagents into each of successive reaction vessels by means of a common delivery device comprising:
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a step of aspirating a given amount of a sample into a probe of the delivery device; a step of discharging the aspirated sample into a reaction vessel; a step of aspirating a given amount of a given desired reagent selected from the plurality of reagents into the probe of the delivery device; a step of discharging the aspirated reagent into the reaction vessel; and a step of washing inner and outer walls of the probe or a liquid path connected to the probe of the delivery device with wash-liquid or diluent, the washing of the outer wall of said probe being effected by moving the probe in the wash-liquid or diluent, and this washing step being interposed between the sample or reagent aspirating step and the sample of reagent discharging step. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification