采用热辅助下的在线甲基衍生化-气相色谱法测定银杏叶中的银杏酸.银杏叶样品与衍生化试剂四甲基氢氧化铵(TMAH, 25%甲醇溶液)同时进样,在300 ℃的进样口瞬间生成了银杏酸甲基衍生物,银杏叶中6种银杏酸得到很好的分离.在一定的质量浓度范围内银杏酸的线性关系良好,回归系数均大于0.996 6,最低检出限范围为0.8~2.8 mg/kg.银杏叶中主要的烷基酚类物质为银杏酸C13:0,C15:1和C17:1,它们的含量(用质量分数表示)分别为11.0%,36.7%和42.8%,3次平行测定的相对标准偏差(RSD)均小于3.4%(n=3).银杏叶样品中总银杏酸的含量为4.0~10.9 mg/g.该方法无需繁琐费时的衍生化和纯化等前处理步骤,不失为银杏叶中银杏酸测定的一种快速、简便、准确的方法.
参考文献
[1] | van Beek T A.J Chromatogr A,2002,967:21 |
[2] | Anon.Pharmacopeial Forum,1999,25:7 754 |
[3] | Srinivasan V S.// van Beek T A.Medicinal and aromatic plants-industrial profiles.Amsterdam:Harwood,2000,12:229 |
[4] | European Pharmacopeia Commission.Pharmeuropa,1999,11:337 |
[5] | European Pharmacopeia Commission.Pharmeuropa,1999,11:333 |
[6] | Li Y H,Zhang L G,Ni L J.Journal of East China University of Science and Technology:Natural Science Edition (李英华,张立国,倪力军.华东理工大学学报:自然科学版),2005,31(3):403 |
[7] | Irie J,Murata M,Homma S.Biosci Biotech Biochem,1996,60:240 |
[8] | Fuzzati N,Pace R,Villa F.Fitoterapia,2003,74:247 |
[9] | Ni X W,Wu M C.Science and Technology of Food Industry (倪学文,吴谋成.食品工业科技),2006,27(11):174 |
[10] | Verotta L,Peterlongo F.Phytochem Anal,1993,4:178 |
[11] | van Beek T A,Wintermans M S.J Chromatogr A,2001,930:109 |
[12] | Ndjoko K,Wolfender J L,Hostettmann K.J Chromatogr B,2000,744:249 |
[13] | He J R,Xie B J.J Chromatogr A,2002,943:303 |
[14] | Kossa W C,MacGee J,Ramachandran S,et al.J Chromatogr Sci,1979,17:177 |
[15] | Zhang X X,Ding J K,Song M,et al.Chinese Journal of Chromatography (张喜轩,丁军凯,宋鸣,等.色谱),2005,23(4):436 |
[16] | Ishida Y,Goto K,Yokoi H,et al.J Anal Appl Pyrol,2007,78:200 |
[17] | Yokoi H,Nakase T,Goto K,et al.J Anal Appl Pyrol,2003,67:191 |
[18] | Garnier N,Richardin P,Cheynier V,et al.Anal Chim Acta,2003,493:137 |
[19] | Wang L L,Ishida Y,Ohtani H,et al.Anal Chem,1999,71:1 316 |
[20] | Pan Z F,Wang L L,Mo W M,et al.Anal Chim Acta,2005,545:218 |
[21] | Wang L L,Qian J,Hu Z C,et al.Anal Chim Acta,2006,557:262 |
[22] | Zang L,Li Y H,Ni L J,et al.Chinese Journal of Pharmaceuticals (臧丽,李英华,倪力军,等.中国医药工业杂志),2000,31(7):331 |
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