| 气相色谱法同时检测焦糖色素中的2-甲基咪唑和4-甲基咪唑 |
| |
| 引用本文： | 彭向前,冯玮,石海英,徐伟. 气相色谱法同时检测焦糖色素中的2-甲基咪唑和4-甲基咪唑[J]. 中国调味品, 2012, 37(8): 83-85 |
| |
| 作者姓名： | 彭向前 冯玮 石海英 徐伟 |
| |
| 作者单位： | 聊城大学生命科学学院,山东聊城,252059 |
| |
| 基金项目： | 山东省教育厅科技计划项目，聊城大学基金重点项目 |
| |
| 摘 要： | 建立了顶空进样毛细管气相色谱法同时测定焦糖色素中2-甲基咪唑和4-甲基咪唑含量的方法。采用HP-5毛细管柱,氮磷检测器,溶剂为二氯甲烷,内标N,N-二甲基苯胺。2-甲基咪唑和4-甲基咪唑的线性范围分别为0.0125～0.150μg/mL和0.025～0.295μg/mL,最低检测浓度分别为0.001μg/mL和0.002μg/mL;回收率在99%以上,相对标准偏差在2%之内。该方法重现性好、简单、快速、准确,能满足对分析检测的需要,适合对焦糖色素的质量进行控制。
|
| 关 键 词： | 毛细管气相色谱法 焦糖色素 2-甲基咪唑 4-甲基咪唑 |
Determination of 2-Methylimidazole and 4-Methylimidazole in Caramel Pigment by Capillary Gas Chromatography |
| |
| PENG Xiang-qian , FENG Wei , SHI Hai-ying , XU Wei. Determination of 2-Methylimidazole and 4-Methylimidazole in Caramel Pigment by Capillary Gas Chromatography[J]. China Condiment, 2012, 37(8): 83-85 |
| |
| Authors: | PENG Xiang-qian FENG Wei SHI Hai-ying XU Wei |
| |
| Affiliation: | (College of Life Science,Liaocheng University,Liaocheng 252059,China) |
| |
| Abstract: | A capillary gas chromatography method with headspace for determination of 2-Methylimidazole and 4-Methylimidazole in caramel pigment was established.A HP-5 capillary column and nitrogen phosphorus was used with methylene chloride as the solvent and N,N-dimethylbenzenamine as the internal standard.The linear range was 0.0125~0.150 μg/mL and 0.025~0.295 μg/mL and the limit of detection was 0.001 μg/mL and 0.002 μg/mL,respectively.The average recoveries were up to 99% and its relative standard deviations(RSD) within 2%.The reproducibility was better,and the method was simple,rapid and sensitive to meet the needs of the analysis,and was suitable for the quality control of caramel pigment. |
| |
| Keywords: | capillary gas chromatography 2-methylimidazole 4-methylimidazole caramel pigment |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
