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Certificación de la concentración de masa de la isoenzima 2 de la creatina-quinasa del material de referencia BCR 608

Authors: Sánchez Manrique, Maribel;

Certificación de la concentración de masa de la isoenzima 2 de la creatina-quinasa del material de referencia BCR 608

Abstract

En la actualidad no se ha descrito ningún procedimiento de medida de referencia para la medición de la concentración de masa de la isoenzima 2 de la creatina-quinasa, por lo que para la asignación de un valor de concentración de masa al material de referencia BCR 608 se siguió la siguiente estrategia: en la campaña de certificación se midió la concentración de masa del material mediante inmunoanálisis de distintas características, utilizando como calibrador una solución purificada de creatina-quinasa 2 a la que previamente se le había asignado un valor de concentración de proteína mediante el procedimiento de Doetsch, utilizando como calibrador el material de referencia SRM 927b con un valor de concentración de proteína certificado. La creatina-quinasa 2 se purificó a partir de músculo cardiaco humano. A la solución purificada se le asignó un valor de concentración de proteína por el procedimiento de Doetsch de 124,3 mg/L, diluyéndose hasta una concentración de 80,362 mg/L para poder ser utilizada como calibrador en los distintos inmunoanálisis. El valor certificado de concentración de masa de la creatina-quinasa 2 del material de referencia BCR 608 fue de 94,5 mg/L con una incertidumbre asociada de 9,6 mg/L.

This report describes the certification of a mass concentration value to the already prepared creatine kinase 2 reference material (BCR 608) with a catalytic concentration assigned value. At present, a mass creatine kinase 2 reference method have not been described. For this reason, we measured the BCR 608 mass concentration in different immunoassays using a creatine kinase 2 purified solution as a calibrator. Previously, the protein concentration of the creatine kinase 2 solution was measured by Doestch method using the reference material SRM 927b as calibrator. Creatine kinase 2 was purified from human heart. A protein concentration value of 124.30 mg/L was assigned to the solution of purified creatine kinase 2 by Doetsch method, and then this solution was diluted to obtain a liquid standard of known protein concentration (80.36 mg/L) to calibrate the immunoassays. The mass concentration of creatine kinase 2 in the BCR 608 reference material was certified to be 94.5 mg/L with an associated uncertainty of 9.6 mg/L.

Country
Spain
Keywords

Ciències Experimentals, Concentración de masa, 577, Creatina-quinasa 2, Material de referencia

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green