| http://www.w3.org/ns/prov#value | - Examination of this and other enzyme immunoassay systems reveals that immunological assays with subpicomolar analyte sensitivity and speed can be developed if the substrate (i.e. FSA) can be quantified at a concentration level of ???10-8 M. The analyte detectability at levels<10-12 M is due to the enzymatic amplification introduced by ALP or other enzymes.
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