@5o- b( 25 FIG. 1. Nomogramrelatingagetonormalconcentrationofse 666 Page 1 TABLE 1.
INTERASSAY VARIATION OF T3 RESIN-STRIP METHOD Coefficient Laboratory No. of analysts …

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MATERIALS AND METHODS High-specific-activity 1251-T3 (590 j. tCi/sg) was obtained
from Abbott Laboratories (North Chicago, Ill.). No significant decomposition was observed …

Conversely, serum T:@ levels may be increased in pregnancy or after ingestion of
estrogens, heroin, or methadone, since these conditions involve elevated levels or …

MATERIALS AND METHODS Antibodies to T3 and T4 were prepared by inject ing into
rabbits T3 and T4 that had previously been conjugated to human serum albumin by a …

RESULTS Table 1 shows the purity of several lots of corn mercial 1251-thyroxine. All but
one (Abbott's Lot# 320) contained less than 3% †251-iodide. The reduction of the …

A simple and reliable technique for the simultaneous estimation of serum triiodothyronine (T
3) and thyroxine (T 4) is discussed. T 3 assay was done by the solid phase technique using …

Comparative Studies of Iodine-131- and Iodine-125-Labeled Triiodothyronine in Resin Uptake
Studies Page 1 JOURNAL OF NU@@LEARMEDICINE 7:281-286, 1966 Comparative Studies …

We read with much interest the article (1) by Howorth and Marsden on the
radioimmunoassay of triiodothyronine by the Ames kit. Since we have presented a similar …

tam any thyroxine.The pH of the serum collected COMPARISON OF RADIOISOTOPIC AND
COLUMN CHROMATOGRAPHIC ASSAY OF SERUM THYROXINE Page 1 The determination …