| Autor: |
Fuwa, Keiichiro, Notsu, Kenji, Tsunoda, Kin-ichi, Kato, Hideaki, Yamamoto, Yuko, Okamoto, Kensaku, Dokiya, Yukiko, Toda, Shozo |
| Zdroj: |
Bulletin of the Chemical Society of Japan; April 1978, Vol. 51 Issue: 4 p1078-1082, 5p |
| Abstrakt: |
Japanese Tea Leaves, prepared by pulverizing with an agate ball mill and sieving with a Saran fiber sieve (50 mesh) were assessed as a possible biological standard reference material for elemental analysis. The metal content of the tea leaves was determined independently at two laboratories using atomic absorption and flame emission spectrometry. Neutron activation analysis was also performed to determine the content (21 elements) of Tea Leaves. For some elements the result from the various methods were compared. The characteristics of Tea Leaves are discussed and the elemental composition is compared to that of Orchard Leaves (NBS SRM, 1571). The most significant characteristic of Tea Leaves was the high manganese content. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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