摘要
The preparation of the human hair reference material and the steps taken to confirm its homogeneity and stability as well as its certificatipn are described. Certified values for 17 elements, which are of importance for human health, and reference values for the other 13 elements are provided for this material.
The preparation of the human hair reference material and the steps taken to confirm its homogeneity and stability as well as its certificatipn are described. Certified values for 17 elements, which are of importance for human health, and reference values for the other 13 elements are provided for this material.
基金
The Project Supported by National Natural Science Foundation of China