혈청 ferritin 측정의 정도관리에 관한 고찰 ( A Study on the Quality Control of 2-site Immunoradiometric Assay of Serum Ferritin ) () |
Author |
김병국(B. K. Kim),김광원(K. W. Kim),고창순(C. S. Koh),조보연(B. Y. Cho),이문호(M. H. Lee),서일택(I. T. Seo), |
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Affiliation |
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Abstract |
A 2-Site immunoradiometric assay for serum ferritin was
evaluated with commercially available kit. The assay
required 6 hours. The slope of the standard curve kept
up ideal range with the calculation of maxium binding
instead of total dose until expire date. The stage II
washing was more important than the stage I washing on
the modified washing procedure as the bead keeping to
remain in the tube. With this modified method, three
times of tube washing was sufficient to reduce the
significant errors. The measured values of serially
diluted sample with standard diluting buffer was
proportional to the predicted values. In the experiment
of serum effect on the assay, a linear relationship
from 5 to 50% serum, but beyond 50% there was reduction
in measured ferritin concentration. It has a
sensitivity of 2.77 ng/ml, within-assay precision (CV)
of 8.0%, and between-assay reproducibility (CV) of 7.4%
(mean 174.8 ng/ml).
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Full text Article |
28503173.pdf
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