| Autor: |
Lakshmi Reddy, S., Gangi Reddy, N. C., Rama Subba Reddy, R., Siva Reddy, G., Sambasiva Rao, P., Jagannatha Reddy, B., Frost, R. L. |
| Předmět: |
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| Zdroj: |
Radiation Effects & Defects in Solids; Nov2006, Vol. 161 Issue 11, p671-679, 8p, 4 Charts, 4 Graphs |
| Abstrakt: |
A powdered sample of Phyllanthus amarus herb of Kadapa district of Andhra Pradesh, India, is used in the present study. ICP-MS analysis indicates that copper is present in higher concentration when compared to other elements. Although the Pb is toxic, it is within the permissible limit. The evaluated soil and herb physico-chemical parameters indicate that the sample is acidic in nature in comparison with the soil. An EPR study on powdered sample confirms the presence of Fe(III), Mn(II) and Cu(II). Optical absorption spectrum indicates that Fe(III) impurity is present in octahedral structure whereas Cu(II) is present in rhombically distorted octahedral environment. MIR results are due to carbonate fundamentals. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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