UPLC测定食用油中的3种香兰素类物质含量Determination of three vanillin compounds in edible oil by UPLC
为解决现有检测方法存在前处理净化不完全、不彻底的情况,建立了超高效液相色谱(UPLC)测定食用油中香兰素、甲基香兰素和乙基香兰素含量的分析方法。用乙腈提取食用油中目标物,以乙腈饱和的正己烷萃取净化,冷冻分层后,再经Oasis PRiME HLB固相萃取柱净化,采用C18色谱柱分离,以0.5%甲酸水溶液-乙腈为流动相进行UPLC测定,外标法定量。结果表明:3种香兰素类物质在0.1~100.0 mg/L范围内线性关系良好,相关系数大于0.999,检出限均为0.03 mg/kg,定量限均为0.1 mg/kg;在 0.1、0.2、1.0 mg/kg 3个添加水平的平均回收率为86.6%~108.1%,...
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| Main Author: | 孟繁磊,张慧,范宏,谭莉,宋志峰 MENG Fanlei, ZHANG Hui, FAN Hong, TAN Li, SONG Zhifeng |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
中粮工科(西安)国际工程有限公司
2024-10-01
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| Series: | Zhongguo youzhi |
| Subjects: | |
| Online Access: | http://tg.chinaoils.cn/zgyz/ch/reader/create_pdf.aspx?file_no=20241020&flag=1 |
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