| 离子液体液液萃取-高效液相色谱检测调味品中罗丹明B |
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| 引用本文： | 张连钢,沈海波,周鑫魁,李建民,谢静,胡永清,魏义杰,袁嘉男,葛雨,方剑儒.离子液体液液萃取-高效液相色谱检测调味品中罗丹明B[J].中国食品添加剂,2020(4):148-154. |
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| 作者姓名： | 张连钢 沈海波 周鑫魁 李建民 谢静 胡永清 魏义杰 袁嘉男 葛雨 方剑儒 |
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| 作者单位： | 甘肃省嘉峪关市食品药品和医疗器械检验检测中心;甘肃省张掖市药品检验检测中心;甘肃中商食品质量检验检测有限公司 |
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| 摘 要： | 建立了离子液体液相萃取-高效液相色谱法(HPLC)检测调味品中罗丹明B的方法。设计合成1-辛基-3-甲基咪唑六氟磷酸盐离子液体,利用该离子液体对调味品中罗丹明B进行吸附,通过HPLC分析其含量。考察了溶液pH、离子液体体积、吸附时间、吸附方式等因素对离子液体吸附罗丹明B的影响。该方法操作简便,回收率高(91.57%~92.31%),结果稳定(RSD(定性)%=0.31%,RSD(定量)%=1.22%),灵敏度高,方法检出限为0.05ng/g,样品处理耗时短,适合批量样品处理。
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| 关 键 词： | 离子液体 罗丹明B 高效液相色谱法 灵敏度 |
Determination of rhodamine B in flavoring by ionic liquid-liquid extraction combined with HPLC |
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| ZHANG Lian-gang,SHENG Hai-bo,ZHOU Xin-kui,LI Jian-min,XIE Jing,HU Yong-qing,WEI Yi-jie,YUAN Jia-nan,GE Yu,FANG Jian-ru.Determination of rhodamine B in flavoring by ionic liquid-liquid extraction combined with HPLC[J].China Food Additives,2020(4):148-154. |
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| Authors: | ZHANG Lian-gang SHENG Hai-bo ZHOU Xin-kui LI Jian-min XIE Jing HU Yong-qing WEI Yi-jie YUAN Jia-nan GE Yu FANG Jian-ru |
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| Affiliation: | (Gansu Province Food Medicine and Medical Equipment Inspection and Testing Center,Jiayuguan 735100;Zhangye Pharmaceutical Inspection and Testing Center,Zhangye 734000;Gansu Zhongshang Food Quality Inspection and Testing CO.,Ltd,Lanzhou 730010) |
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| Abstract: | Developed a method for the determination of rhodamine B in condiments by ionic liquid dispersive liquid-liquid extraction combined with high performance liquid chromatography(HPLC).Designed and synthesized 1-octyl-3-methylimidazolium hexafluorophosphate ionic liquid,and used this ionic liquid to adsorb rhodamine B in the seasoning and analyzed its content by HPLC.Investigated the effects of solution pH,ionic liquid volume,adsorption time,and adsorption mode on the adsorption of rhodamine B by ionic liquids.This method is simple and convenient to operate,and the recovery rate is high(91.57%~92.31%).The result is stable(RSD(qualitative)%=0.31%,RSD(quantitative)%=1.22%),the sensitivity is high,and the detection limit of the method is 0.05ng/g.Sample processing takes a short time and is suitable for batch sample processing. |
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| Keywords: | ionic liquid rhodamine B HPLC sensitivity |
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