Research of Trace Elements Content in Tea Based on Flame Atomic Absorption Spectrometry

DOI

10.2991/meep-15.2016.13How to use a DOI?

Keywords

flame atomic absorption spectrometry; tea; trace elements

Abstract

The determination method for the content of trace element of Cu, Fe, Mn, Zn and Ni in tea by the wet digestionflame atomic absorption spectrometry (FAAS) was established. The effect of digestive reagents, the volume of digestion and the digestion time were investigated in detail. The optimum condition for digesting samples was HNO3-H2O2 system; the volume of H2O2, 4 mL; and digestion time, 60 min. The content of Fe in the analyzed samples was 115.62 g/g, while the content of Cu was 42.54 g/g, Mn 396.48 g/g, Zn 50.69 g/g, and Ni 14.88 g/g. The recovery of the five elements was in the range of 96.37 103.92 %. Relative standard deviation (RSD) was less than 5 %. This method was simple, higher precision and accuracy. And experiment results were satisfactory.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Q. Liu
PY  - 2016/03
DA  - 2016/03
TI  - Research of Trace Elements Content in Tea Based on Flame Atomic Absorption Spectrometry
BT  - Proceedings of the 2015 International Conference on Materials Chemistry and Environmental Protection (meep-15)
PB  - Atlantis Press
SP  - 46
EP  - 49
SN  - 2352-541X
UR  - https://doi.org/10.2991/meep-15.2016.13
DO  - 10.2991/meep-15.2016.13
ID  - Liu2016/03
ER  -