An equilibrium dialysis technique was used to measure simultaneously the proportion of free
thyroxine (% FT4) and free 3, 4, 5'-triiodothyronine (% FT3) in sera from patients with diverse …

A method has been developed for estimating relative changes in free T4 fraction (F T4 F) in
serum. The principle involves the partition of added labeled T4 between binding sites on …

The effect of dilution on values of the per cent of free T4 in serum (% FT4), measured by
equilibrium dialysis, was determined by comparing the values for% FT4 in diluted and …

Serum free T3 concentration has been assessed in various thyroid conditions by a T3
analog method and the results compared with those obtained by equilibrium dialysis in the …

ABSTRACT A method of measuring free thyroxine (T4) is described which uses the property
of Sephadex to bind T4. If 500 mg Sephadex G-25, 40 μI of serum in 4 ml physiological …

A rapid, simple test for indirectly estimating serum-free T4 concentration is described which
accurately assesses thyroid function irrespective of the status of the serum T4 binding …

The present study was undertaken to examine serum concentrations of free T4 in various
functional states of the thyroid by a two-tube (A and B) solid phase RIA (Corning Immophase …

Abstract A new" T-3" test, based on the competition between serum-binding proteins and
Sephadex G-25 for 125I-triiodothyronine, is presented. Results obtained with this …

A reliable method has been developed for the determination of total serum T3, dialyzable
fraction (DFT3), and absolute concentration of free T3 (AFT3). Total T3 values (mean±SD) …

The binding of the thyroid hormones, L-thyroxine (T 4) and L-triiodothyronine (T 3), was
examined in eight sera obtained from patients with severe illness and the results compared …