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Improvement of Analytical Method for Determination of Germanium in Plant by Atomic Absorption Spectrometry
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1997, v.10 no.3, pp.179-186
Han,
S., Rim,
Y., &
Kim,
I.
(1997). Improvement of Analytical Method for Determination of Germanium in Plant by Atomic Absorption Spectrometry. Analytical Science and Technology, 10(3), 179-186.
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Abstract
This study was carried out to improve the analytical method for determination of germanium in plants by atomic absorption spectrometry with graphite furnace. For the decomposition of plant samples, the mixed acid of <TEX>$HNO_3+HClO_4+H_2SO_4$</TEX>(10 : 4 : 1, v/v) was used. Under this condition, time requirement for the decomposition was 4~5 days and recovery rate was more than 98%. Solution for filling up to constant volume after decomposition was 0.1M acetic acid-sodium acetate. Detection limit for determination of germanium was 0.02 ppm by atomic absorption spectrometry with graphite furnace and argon gas. These results were corresponded with the above-mentioned research projects for improving the determination method of germanium in plants.
- keywords
- analytical method, determination of germanium, mixed acids, graphite furnace, atomic absorption spectrometry
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