Addition of the non-ionic detergent Tween 20 to the serum diluent enhances anti-cardiolipin binding reactivity in an ELISA system. Maximal enhancement was obtained using a concentration of 0.05% Tween 20 in the diluent. Non-specific interactions were also considerably reduced.
The aim of this study was to evaluate the distribution of cardiac troponin I (cTnI) values, measured by the ADVIA TnI-Ultra method in a multi-ethnic group and to determine the imprecision of the assay.