摘要
采用高效液相色谱-同位素比率质谱联用技术(HPLC-IRMS)结合有机酸专用柱Prevail Organic Acid测定食醋中有机酸的碳同位素比。同时,HPLC-IRMS测定食醋有机酸,有效的前处理净化过程可减缓液相色谱测试过程中在线过滤系统中的滤膜堵塞的情况。结果表明,不同产地食醋的乳酸和苹果酸的δ13C值具有显著性差异,能为产地溯源提供参考。
By using high performance liquid chromatography coupled with isotope ratio MS（HPLC-IRMS） to determine carbon isotope of organic acids in vinegar, with Prevail Organic Acid special column, organic acids in vinegar could be separated. Meanwhile, effective pretreatment process could slow down the clogging of the membrane in the online filtration system during the detection. The results showed that the δ^（13） C values of lactic acid and malic acid vinegar from different origins were significantly different, which could provide reference for the origin traceability of vinegar.
作者
王奇
刘钟栋
熊岑
杨国武
郑彦婕
张协光
WANG Qi;LIU Zhongdong;XIONG Cen;YANG Guowu;ZHENG Yanjie;ZHANG Xieguang(College of Food Science and Technology, Henan University of Technology （Zhengzhou 450001;College of Environmental and Biological Engineering, Guangdong University of Petrochemical Technology （Maoming 525000;Shenzhen Academy of Metrology and Quality Inspection （Shenzhen 518000)
出处
《食品工业》
CAS
北大核心
2018年第4期199-203,共5页
The Food Industry
基金
广东省科技厅广东省协同创新与平台环境建设专项(2016A040403075)
国家重大科学仪器设备开发专项(2012YQ090167-0402)
国家重点研发计划资助(2016YFD0400800)
