頁籤選單縮合
題名 | "Sock-Ball" Chromatographic Separation of Some Polycyclic Aromatic Hydrocarbons with C[fefe]-Fullerene Stationary Phase= |
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作者 | 張勝雄; 蔡厚仁; 鄧朝岡; Chang, Cheng-shyong; Tsai, Hou-jen; Den, Tschau-gan; |
期刊 | Journal of the Chinese Chemical Society |
出版日期 | 19980600 |
卷期 | 45:3 1998.06[民87.06] |
頁次 | 頁411-415 |
分類號 | 340 |
語文 | eng |
關鍵詞 | Sock-ball chromatography; C[fefe]-fullerene-phase; Polycyclic aromatic hydrocarbon; HPLC; |
英文摘要 | Polycyclic aromatic hydrocarbons (PAS□) of different molecular shapes were tested and compared with prepared C□-fullerene-phase, and with the commercial Amino-phase or RP-18-phase in the mobile phase methanol/dichloromethane (90/10~70/30) or n-hexane/dichloromethane (80/20). The chromatographic eparation results indicate that C□-fullerene-phase achieves the special selectivities and performances for the separation of PASs. Based on the retention mechanism of "π- π" complex interaction or "Sock-Ball" haped combination, PASs undergo more pronounced interactino with C□ ligand. For example, decacyene, a sock-shaped PAHs, the structure of which was calculated by means of semi-empirical molecular orbital methods, possesses stronger retention to give a "Sock-Ball" chromatographic separation with C fullerene-phase. However, PAHs with bend, planar, or co-planar structures eluted on C□-fullerene-phase undergo adsorption chromatography, but posses weaker retentions. The retention power of "Sock-Ball" chromatography can successfully recognize the different molecular shapes of PAHs. |
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