AI Article Synopsis
- Selected synthetic food dyes were extracted from mouthwashes and beverages using Solid Phase Extraction with sodium hydroxide as an eluent.
- The extracted dyes were analyzed through thin layer chromatography and quantification was performed using calibration plots, showing high accuracy (R² > 0.997).
- The extraction method achieved over 90% recovery for all dyes, with a repeatability acceptable for routine analysis (CV ≤ 4.1%).
Article Abstract
Selected synthetic food dyes (tartrazine, Ponceau 4R, Brilliant Blue, orange yellow, and azorubine) were isolated from liquid preparations (mouthwashes and beverages) by Solid Phase Extraction on aminopropyl-bonded silica with diluted aqueous sodium hydroxide as an eluent. The extraction step was followed by thin layer chromatography on silica gel 60 with chloroform-isopropanol-25% aq. ammonia 1 : 3 : 1 (v/v/v) as mobile phase and the densitometric quantification of dyes was achieved using quadratic calibration plots ( > 0.997; LOQ = 0.04-0.09 gspot). The overall recoveries for all studied dyes were at the average level of over 90% and the repeatability of the proposed procedure (CV ≤ 4.1%) was sufficient to recommend it for the routine quantification of the aforementioned dyes in liquid matrices.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5536146 | PMC |
| http://dx.doi.org/10.1155/2017/9528472 | DOI Listing |
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