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作 者:屠春燕[1] 袁艳娟[1] 吴燕娇[1] 唐美华[1] 韦萍[1] 李寿椿
机构地区:[1]南京工业大学制药与生命科学学院,南京210009 [2]南京中意化工技术开发研究所,南京210037
出 处:《分析试验室》2010年第3期96-100,共5页Chinese Journal of Analysis Laboratory
摘 要:采用对甲氧基苯磺酰氯作为柱前衍生试剂,RP-HPLC为分析模式,建立了一种新的生物胺衍生化方法,并对葡萄酒中生物胺含量进行检测。通过液质联用对产物进行定性,研究并确定了最适衍生化条件:衍生温度50℃,缓冲液pH 9.0,衍生时间15 min。实验建立了7种生物胺的HPLC分离方法:Beckman ODS柱;流动相A为10 mmol/L的NH4Ac溶液(pH 6.37),B相为乙腈;采用梯度洗脱;流速1 mL/min;检测波长240 nm,室温。A novel derivative method for the determination of biogenic amines has been developed by use of 4-methoxy benzenesulphonyl chloride.The derivate production identification was performed by HPLC-MS system.The optimized conditions of derivatization were listed as following: the reaction temperature was 50 ℃;the pH value was 9 and the reaction time was 15 min.The chromatographic conditions were as following: Beckman ODS column(5 μm,4.6×150 mm),the detection wavelength was 240 nm,the flow rate was 1.0 mL/min;Mobile phase A: 10 mmol/L NH4Ac(pH 6.37),Mobile phase B: ACN;the gradient protocol was applied.The method has many advantages such as sensitivity,simplicity(pmol),rapidity and stability,which is suitable for the derivatization of biogenic amines and other substances which have amino group.
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