| 摘要 |
The present invention discloses a method of measuring iron concentration in a sample, characterized by bringing the iron contained in the sample into contact with a metallochromic indicator for iron in the presence of lithium ion and determining the iron concentration based on the degree of resultant coloring, a reagent and a kit using therefor. By performing the method of measuring iron concentration of the present invention, the conventional problem that the measured value is lower as compared with that obtained by the International Standard Method is solved; a complicated procedures such as protein removal treatment or the like are not required; the measurement of iron concentration with an automated analyzer is enabled; and more accurate measurement becomes possible, since the measured value obtained by the present method is very close to that obtained by the standard addition method according to the International Standard Method,
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