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Multi-Element Detection in Green, Black, Oolong, and Pu-Erh Teas by ICP-MS | OMICS International | Abstract
ISSN: 2168-9652

Biochemistry & Physiology: Open Access
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Research Article

Multi-Element Detection in Green, Black, Oolong, and Pu-Erh Teas by ICP-MS

Qiang Han*, Shozo Mihara, and Tatsuya Fujino
Department of Chemistry, Tokyo Metropolitan University, Hachioji-Shi, Tokyo
*Corresponding Author : Qiang Han
Department of Chemistry
Tokyo Metropolitan University
1-1 Minami-Osawa, Hachioji-Shi
Tokyo 192-0397
Tel: +81 042 6773135
Fax: +81 042 677 3135; Email: [email protected]
Received May 08, 2014; Accepted May 21, 2014; Published May 28, 2014
Citation: Han Q, Mihara S and Fujino T (2014) Multi-Element Detection in Green, Black, Oolong, and Pu-Erh Teas by ICP-MS. Biochem Physiol 3:132. doi:10.4172/2168-9652.1000132
Copyright: © 2014 Han Q, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

The contents of various elements in green, black, oolong, and pu-erh teas were measured by ICP-MS. The dependence of the dissolution rate of each element on the extraction time and the number of infusion was determined. By calculating the estimated daily dietary intake as a result of consuming 15 g of tea leaves a day, it was revealed that Cr and Mn exceeded the adequate intake for one day.

Keywords

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