A device for detecting the presence of at least two analytes in a fluid sample, the device comprising: - a pipetting station, wherein the pipetting station is configured to receive at least two pipettes, - a fluid sample receptacle; - at least two pipettes, wherein the at least two pipettes comprises a first pipette having a first immobilized binding partner specific to a first analyte present on an inner surface of the first pipette and a second pipette having a second immobilized binding partner specific to a second analyte present on an inner surface of the second pipette, wherein the analyte specificity of the first immobilized binding partner is different than the analyte specificity of the second immobilized binding partner; - wherein the first pipette is configured to withdraw at least a portion of a single fluid sample from the fluid sample receptacle into the first pipette such that the first immobilized binding partner is brought into contact with the withdrawn fluid sample to thereby form a first analyte-binding partner complex if a first analyte is present in the fluid sample; and - wherein further the first pipette is configured to re-dispense a non-reacted portion of the single fluid sample into the fluid sample receptacle, and the second pipette is configured to withdraw at least a portion of the non-reacted portion of the fluid sample such that the second immobilized binding partner is brought into contact with the non-reacted portion of the withdrawn fluid sample to thereby form a second analyte-binding partner complex if a second analyte is present in the non-reacted portion of the single fluid sample, wherein the process of sequentially disposing the first pipette and the second pipette within the sample receptacle is accomplished by an automated process via use of the pipetting station. - a pipetting station, wherein the pipetting station is configured to receive at least two pipettes, - a fluid sample receptacle; - at least two pipettes, wherein the at least two pipettes comprises a first pipette having a first immobilized binding partner specific to a first analyte present on an inner surface of the first pipette and a second pipette having a second immobilized binding partner specific to a second analyte present on an inner surface of the second pipette, wherein the analyte specificity of the first immobilized binding partner is different than the analyte specificity of the second immobilized binding partner; - wherein the first pipette is configured to withdraw at least a portion of a single fluid sample from the fluid sample receptacle into the first pipette such that the first immobilized binding partner is brought into contact with the withdrawn fluid sample to thereby form a first analyte-binding partner complex if a first analyte is present in the fluid sample; and - wherein further the first pipette is configured to re-dispense a non-reacted portion of the single fluid sample into the fluid sample receptacle, and the second pipette is configured to withdraw at least a portion of the non-reacted portion of the fluid sample such that the second immobilized binding partner is brought into contact with the non-reacted portion of the withdrawn fluid sample to thereby form a second analyte-binding partner complex if a second analyte is present in the non-reacted portion of the single fluid sample, wherein the process of sequentially disposing the first pipette and the second pipette within the sample receptacle is accomplished by an automated process via use of the pipetting station. <EOS>