| 分光光度计法测定啤酒中甲醛含量 |
| |
| 引用本文： | 丁怀宇,张静文.分光光度计法测定啤酒中甲醛含量[J].吉林工学院学报,2008,29(6):657-660. |
| |
| 作者姓名： | 丁怀宇 张静文 |
| |
| 作者单位： | [1]吉林工商学院教务处,吉林长春130062 [2]长春工业大学化学与生命科学学院,吉林长春130012 |
| |
| 基金项目： | 吉林省教育厅基金资助项目
|
| |
| 摘 要： | 采用乙酰丙酮比色法对啤酒中甲醛含量直接测定，结果表明，体系pH值接近6，沸水浴10min后，基本显色完全，且可稳定存在12h，试验过程中选择纯度为0．25％的乙酰丙酮试剂，且应每周更新标准曲线。研究表明，采用该法简单、快速且可靠。
|
| 关 键 词： | 乙酰丙酮比色法 啤酒 甲醛 |
Test of formaldehyde content in beer with spectrophotometer |
| |
| DING Huai-yu,ZHANG Jing-wen.Test of formaldehyde content in beer with spectrophotometer[J].Journal of Jilin Institute of Technology,2008,29(6):657-660. |
| |
| Authors: | DING Huai-yu ZHANG Jing-wen |
| |
| Institution: | 1.Division of Teaching Management;Jilin Technology and Business Institute;Changchun 130062;China;2.School of Chemical & Life Science;Changchun University of Technology;Changchun 130012;China |
| |
| Abstract: | Acetylcholine colorimetry is applied to directly test the content of formaldehyde in beer.The results show that the pH value of the system closes to 6,and the color can be completely showed after 10 minute bath and last for 12 hours.Acetylacetone reagent with 25% purity should be selected during the test,and the standard curve should be updated weekly.The test method,we offer here,is simple and reliable. |
| |
| Keywords: | acetylcholine colorimetry beer formaldehyde |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
