Determination of Tartrazine and Brilliant Blue FCF Using Ionic Liquid Independent Disperse Liquid-Liquid Microextraction
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Determination of Tartrazine and Brilliant Blue FCF Using Ionic Liquid Independent Disperse Liquid-Liquid Microextraction
Vol. 31, Issue 12, Pages: 1499-1504(2012)
作者机构:
1. 山西师范大学分析测试中心
2. 山西师范大学工程学院
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Determination of Tartrazine and Brilliant Blue FCF Using Ionic Liquid Independent Disperse Liquid-Liquid Microextraction. [J]. 31(12):1499-1504(2012)
DOI:
Determination of Tartrazine and Brilliant Blue FCF Using Ionic Liquid Independent Disperse Liquid-Liquid Microextraction. [J]. 31(12):1499-1504(2012)DOI:
Determination of Tartrazine and Brilliant Blue FCF Using Ionic Liquid Independent Disperse Liquid-Liquid Microextraction
A novel method using ionic liquid independent disperse liquid-liquid microextraction(IL-IDLLME) coupled with first derivative spectra was developed and applied in the determination of tartrazine(E102) and brilliant blue FCF(E133) in soft drink,candy and jelly samples.1.Octyl-3-methylimidazolium tetrafluoroborate ([C8MIM][BF4]) showed a high preconcentration for the two food dyes,and their first-derivative spectra will not interfere with each other.Under the optimal conditions,the calibration curves were linear in the ranges of 20-1 000 μg ? L-1 for E102 and 3-150 μg ? L-1 for E103.The detection limits based on three times the standard deviation of the blank(3Sb) were 6.60 μg?L-1for E102 and 0.84 μg?L-1for E103.The proposed method was applied successfully in the determination of two food dyes in food samples without any interference.
关键词
柠檬黄亮蓝食品离子液体分散液液微萃取
Keywords
tartrazinebrilliant blue FCFfoodionic liquiddisperse liquid-liquid microextraction
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