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題名 | 高嘌呤食物中嘌呤含量分析方法之探討=The Investigation of Analytical Method of Purine Content in High Purine Foods |
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作者姓名(中文) | 周政輝; 柯易昌; | 書刊名 | 中華民國營養學會雜誌 |
卷期 | 24:4 1999.11[民88.11] |
頁次 | 頁366-378 |
分類號 | 411.38 |
關鍵詞 | 嘌呤含量; 大豆; 逆相高效液相層析法; Purine content; Soybean; RP-HPLC; |
語文 | 中文(Chinese) |
中文摘要 | 本研究主要目的在探討不同pH與離子濃度之移動相條件對逆相高效液相層析法分析嘌呤和嘧啶滯留能力之影響,並進一步應用在分析部分高嘌呤食物之嘌呤含量。結果發現逆相高效液相層析法在0.02M,pH 4.0醋酸鉀及0.1l%三乙基氨的等位沖離之下,可在18分鐘之內完全分離七種核鹼基。高嘌呤食物(0.05g)在2.75mL三氟醋酸:甲酸:去離子水(5:5:1)之混合液中,120℃下加熱30分鐘可將核酸物質水解成嘌呤。樣品以Sep-pak C18管柱處理可除去非極性水解產物,保護ODS管柱。 |
英文摘要 | The purpose of this study was to investigate the effects of different pH and ion concentration of mobile phase on separating purine and pyrimidine bases by reversed phase high performance liquid chromatography (RP-HPLC). The 7 nucleobases could be separated perfectly in 18 minutes by RP-HPLC at a 0.02 M, pH 4.0 KOAc mobile phase with 0.1 % triethylamine. The purine bases in soybean (0.05 g) were liberated from nucleic acids, nucleotides or nucleosides by a acid hydrolization with 2. 75 mL trifluoroacetic acid (TFA): formic acid (FA): deionized water (5:5:1) at 120 ℃ for 30 minutes. The preparation of sample with Sep-pak C18 cartridge could protect ODS column effectively, because the nonpolar hydrolates would be eliminated. |
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