| 衍生电化学法测定橘皮中的咪酰胺 |
| |
| 引用本文： | 李静,李红波,胡效亚.衍生电化学法测定橘皮中的咪酰胺[J].食品科学,2011,32(18):246. |
| |
| 作者姓名： | 李静 李红波 胡效亚 |
| |
| 作者单位： | 盐城工学院化学与生物工程学院;扬州大学化学化工学院; |
| |
| 基金项目： | 国家自然科学基金面上基金项目(2087508121075107); 盐城工学院自然科学基金项目(XKY2009009) |
| |
| 摘 要： | 采取简便的衍生电化学法灵敏地测定橘皮中的咪酰胺。用丙酮和乙酸乙酯分别萃取橘皮中的咪酰胺,然后用吡啶盐酸盐对其进行水解,使没有电化学活性的咪酰胺生成具有电化学活性的2,4,6-三氯苯酚。在优化实验条件(pH4.0,富集电位和富集时间分别是0V和300s)下,运用差示脉冲溶出伏安法建立测定橘皮中咪酰胺含量的新方法。进一步实验结果表明,2,4,6-三氯苯酚氧化峰电流与其浓度在9.0×10-9～8.0×10-5mol/L范围内呈良好的线性关系,检出限为9.7×10-10mol/L,回收率为98.5%～113.0%。
|
| 关 键 词： | 衍生 电化学 咪酰胺 橘皮 |
Electrochemical Determination of Prochloraz in Orange Peel after Derivatization |
| |
| LI Jing,LI Hong-bo,,HU Xiao-ya.Electrochemical Determination of Prochloraz in Orange Peel after Derivatization[J].Food Science,2011,32(18):246. |
| |
| Authors: | LI Jing LI Hong-bo HU Xiao-ya |
| |
| Affiliation: | LI Jing1,LI Hong-bo1,2,*,HU Xiao-ya2(1.Chemical and Biological Engineering College,Yancheng Institute of Technology,Yancheng 224051,China,2.College of Chemistry and Chemical Engineering,Yangzhou University,Yangzhou 225002,China) |
| |
| Abstract: | A method to determine prochloraz in orange peel by electrochemistry analysis after derivatization was developed.Prochloraz was stepwise extracted by acetone and ethyl acetate,and hydrolyzed into electrochemical active 2,4,6-trichlorophenol by pyridine hydrochloride.Differential pulse stripping voltammetry(DPSV) was utilized to determine prochloraz under the optimized conditions pH 4.0 and accumulation at 0 V potential for 300 s.The results showed that oxidative peak current of 2,4,6-trichlorophenol was posi... |
| |
| Keywords: | derivatization electrochemistry prochloraz orange peel |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《食品科学》浏览原始摘要信息 |
|
点击此处可从《食品科学》下载全文 |
|
