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DELFIA® immunoassays are a good alternative to traditional ELISAs (enzyme linked immunosorbent assays). The term ELISA originated during a time that this kind of assay setup needed an enzyme to generate the signal. In DELFIA ELISAs (DELFIA immunoassays), the use of an enzyme is not necessary.

DELFIA® (dissociation-enhanced lanthanide fluorescence immunoassay) is a time-resolved fluorescence (TRF) intensity technology. Assays are designed to detect the presence of an analyte of interest using lanthanide chelate labeled reagents. Wash steps are used to eliminate unbound reagent.​

DELFIA Time-Resolved Fluorescence Assays Assays are designed to detect the presence of a compound or biomolecule using lanthanide chelate labeled reagents, separating unbound reagent using wash steps.

DELFIA® (dissociation-enhanced lanthanide fluorescence immunoassay) is a time-resolved fluorescence (TRF) intensity technology. Assays are designed to detect the presence of an analyte of interest using lanthanide chelate labeled reagents. Wash steps are used to eliminate unbound reagent.​

The DELFIA signal develops quickly and is stable over long periods of time, providing flexibility in work flow planning. In contrast, in ELISA assays, the color-producing reaction requires the addition of stop solution followed by measurement within 30 min.

DELFIA Time-Resolved Fluorescence Assays Assays are designed to detect the presence of a compound or biomolecule using lanthanide chelate labeled reagents, separating unbound reagent using wash steps.

The DELFIA Enhancement Solution is an acidic chelating detergent solution intended for use in the quantitative determination of Eu3+/Sm3+ when using time-resolved fluoroimmunoassay.