中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 流动注射分光光度法测定啤酒及海产品中的甲醛 食品科学 2009,30 (20) 371-374
Position: Home > Articles > Determination of Formaldehyde in Beer and Seafood Using Flow Injection Spectrophotometry FOOD SCIENCE 2009,30 (20) 371-374

流动注射分光光度法测定啤酒及海产品中的甲醛

作  者：
强洪;朱红霞;朱若华;李硕;聂润秋
单  位：
首都师范大学化学系
关键词：
流动注射分析;分光光度法;甲醛;乙酰乙酸甲酯;醋酸铵
摘  要：
研究建立流动注射分光光度法可简单、快速检测啤酒及海产品中甲醛的含量。在以醋酸铵为缓冲溶液的介质(pH7)中,甲醛、醋酸铵以及乙酰乙酸甲酯混合后在60℃条件下反应3min生成有色物质,在375nm波长处有最大吸收。探讨最佳的实验条件,在最佳条件下,方法的检出限为3.2×10-6mol/L,且甲醛标准溶液的浓度在0.8×10-5～8.0×10-5mol/L之间符合朗伯比尔定律。应用所建立的方法分别测定4种海产品和3种啤酒中甲醛的含量,加标回收率分别在84.5%～107.4%和94.6%～114.6%之间。
译  名：
Determination of Formaldehyde in Beer and Seafood Using Flow Injection Spectrophotometry
作  者：
QIANG Hong,ZHU Hong-xia,ZHU Ruo-hua,LI Shuo,NIE Run-qiu(Department of Chemistry, Capital Normal University, Beijing 100048, China)
关键词：
flow injection analysis;spectrophotometry;formaldehyde;methyl acetylacetate;ammonium acetate
摘  要：
A simple and convenient flow injection spectrophotometric method was developed for determining the content of formaldehyde in beer and seafood.Formaldehyde can react with methyl acetylacetate to form a color compound in the presence of ammonia acetate after heating at 60 ℃for 3 min.A maximum absorption wavelength of this new compound was observed at 375 nm.The detection limit for formaldehyde using this method was 3.2 × 10-6 mol/L under the developed optimal conditions and an excellent linear relationship was exhibited in the range of(0.8-8.0) × 10-5 mol/L for formaldehyde determination using this method.Moreover, this method was applied to determine the content of formaldehyde in four kinds of seafood products and three kinds of beer products.The spike recovery rates of formaldehyde were 84.5%-107.4% and 94.6%-114.6%, respectively.

相似文章

导出引用
计量
文章访问数: 8
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46