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Validation and Uncertainty Evaluation of an Optimized Analytical Method Using HPLC Applied to Canthaxanthin, a Food Colorant
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 Title & Authors
Validation and Uncertainty Evaluation of an Optimized Analytical Method Using HPLC Applied to Canthaxanthin, a Food Colorant
Suh, Hee-Jae; Kim, Kyung-Su; Hong, Mi-Na; Lee, Chan;
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 Abstract
This study was carried out to develop an optimized analytical method using high-performance liquid chromatography (HPLC) applied to canthaxanthin, which is not yet designated as a food colorant in Korea, as well as to perform validation and uncertainty evaluation of this method. Official methods of AOAC, UK, and Japan with HPLC-UV detection were evaluated for the analysis of canthaxanthin by comparison of linearity, resolution, selectivity, limit of detection (LOD), limit of quantitation (LOQ), accuracy, precision, recovery, inter-laboratory tests, and uncertainty measurement. The calibration curves showed high linearity with an value of over 0.999 for canthaxanthin standard solutions in all three official methods. The official method of Japan exhibited the best results in terms of resolution and selectivity, including the lowest LOD and LOQ. The average coefficients of variation were calculated as less than five of three institutes with a precision value less than 1, accuracy near 100%, and recovery ratio between . The expanded uncertainty for canthaxanthin was estimated to be (95% confidence level, k=2), and the uncertainty of measurement was 13.4%. In this study, official methods of canthaxanthin were compared and the validities verified. The results will be further applied to establish an authorized analytical method for canthaxanthin in Korea.
 Keywords
canthaxanthin;food color;HPLC-UVD;uncertainty;
 Language
Korean
 Cited by
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