Issue 16, 2013

Determination of Brilliant Blue FCF in food and cosmetic samples by ionic liquid independent disperse liquid–liquid micro-extraction

Abstract

A novel, relatively fast and simple method of ionic liquid independent disperse liquid–liquid micro-extraction (IL-IDLLME) coupled with UV-Visible spectroscopy was developed and applied to determination of the synthetic dye Brilliant Blue FCF (E133) in six different kinds of food and cosmetic samples, namely soft drinks, candy, jelly, kiwi fruit (Actinidia chinensis) pieces, roasted pea, ice cream, eau de toilette and shampoo. The samples were dissolved in water and preconcentrated simply by using 1-decyl-3-methylimidazolium tetrafluoroborate ([C10MIM][BF4]) without a dispersive solvent, heat, ultrasonication or additional chemical reagents. The effects of different parameters such as the volume of [C10MIM][BF4], pH, KCl concentration, micro-extraction temperature, incubation time and centrifugation time on the micro-extraction of E133 (0.12 μg mL−1) were investigated and optimum conditions were established. A linear calibration curve was obtained in the range of 1.5–150 μg L−1 for E133 under optimum conditions. The limit of detection (LOD) based on 3Sb was 0.34 μg L−1 (n = 11). The relative standard deviation (R.S.D.) for 5 and 140 μg L−1 of E133 was 0.43% and 0.82% (n = 10), respectively. The method is therefore recommended for use by the quality control departments of food and cosmetic producers using E133.

Graphical abstract: Determination of Brilliant Blue FCF in food and cosmetic samples by ionic liquid independent disperse liquid–liquid micro-extraction

Article information

Article type
Paper
Submitted
07 Mar 2013
Accepted
02 Jun 2013
First published
05 Jun 2013

Anal. Methods, 2013,5, 4021-4026

Determination of Brilliant Blue FCF in food and cosmetic samples by ionic liquid independent disperse liquid–liquid micro-extraction

J. Guo, H. Wu, L. Du and Y. Fu, Anal. Methods, 2013, 5, 4021 DOI: 10.1039/C3AY40362A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements