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題 名 | 靈芝中鍺含量分析方法之建立=Establishment of an Analytical Method for Determining Germanium in Ganoderma Tsugae |
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作 者 | 陳孟堂; 楊筱冬; 仇志強; 傅偉光; | 書刊名 | 食品科學 |
卷 期 | 24:3 1997.06[民86.06] |
頁 次 | 頁308-318 |
分類號 | 414.34 |
關鍵詞 | 鍺; 靈芝; 石墨爐原子吸收光譜法; Germanium; Ganoderma tsugae; Graphite furnace atomic absorption spectrophotometer; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究運用石墨爐平臺塗鋯(Zr)與硝酸鈀Pd(NO��)�秣羷霅袡Ⅵ秘尼瑋N,取代傳 統分光光度法中靈芝鍺含量測定之溶劑萃取及純化等前處理步驟。本方法除了有效縮短樣品 前處理時間外,並能克服測定時基質干擾與排除外界污染導入等問題。靈芝樣品經乾式灰化 或高壓濕式消化前處理後,以 1300 ∼ 1400 ℃灰化溫度與 2600 ℃原子化溫度之石墨爐測 定條件可得到最佳測定效果,儀器偵測極限約為 3.2 ppb。為確認本方法之準確性,在乾式 灰化及濕式消化之靈芝基質中添加不同濃度之鍺標準溶液, 再利用石墨爐原子吸收光譜法 (GFAAS) 測定鍺含量, 並計算回收率約在 94.81 %∼ 100.88 %之間,顯示本研究方法可 適用靈芝中鍺含量之測定。 |
英文摘要 | The application of zirconium-coated graphite platform and use of aqueous palladium nitrate as a matrix modifier could improve the analytical method and replace the colormetric method for germanium in Ganoderma tsugae. This methodology not only could reduce the time required for sample preparation, but also effectively prevent interference and contamination. The optimum temperatures for ashing pretreatment and graphite furnace atomization were 1300 ∼ 1400 ℃ and 2600 ℃, respectively. Moreover, the detection limit of this methodology was found to be 3.2 ppb, and the recoveries for spiked tests on Ganoderma tsugae matrix by dry or wet preparation were found to be above 94.81 ∼ 100.88 %. Therefore, the established method has great potential determining germanium in Ganoderma tsugae. |
本系統中英文摘要資訊取自各篇刊載內容。