Abstract
Analyzing the concentrations of heavy metals in the sera of umbilical cord blood samples can provide useful information about prenatal exposure to environmental agents. An analytical method based on ICP-MS to simultaneously determine multiple elements in umbilical cord blood samples was developed for assessing the in utero exposure to metallic and metalloid elements. The method only required as little as 100 μL of serum diluted 1:25 for direct analysis. Matrix-matched protocol was used to eliminate mass matrix interference and kinetic energy discrimination mode was used to eliminate the polyatomic ion interference. The assay was completed on average within 4 min with the detection limits ranging from 0.0002 to 44.4 μg/L for all the targeted elements. The detection rates for most of elements were 100 % other than cadmium (Cd), lead (Pb), and mercury (Hg). The testing results of the certified reference materials were ideal. The method is simple and sensitive, so it is suitable for the monitoring of large quantities of samples.
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Funding was provided by the National Natural Science Foundation of China (No. 81330068, Beijing, People’s Republic of China).
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All experimental procedures were approved by the institutional ethics committee of Anhui Medical University.
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The authors declare that they have no conflict of interest.
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Chunmei Liang, Zhijuan Li, and Xun Xia are the equal first authors.
An erratum to this article is available at http://dx.doi.org/10.1007/s12011-017-0958-6.
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Liang, C., Li, Z., Xia, X. et al. Determine Multiple Elements Simultaneously in the Sera of Umbilical Cord Blood Samples—a Very Simple Method. Biol Trace Elem Res 177, 1–8 (2017). https://doi.org/10.1007/s12011-016-0853-6
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DOI: https://doi.org/10.1007/s12011-016-0853-6