This chapter offers an appropriate analytical approach for routine antimicrobial drug residue monitoring in food. Canthaxanthin (CX), a colouring ingredient, was quantified in hen egg yolk using a simpler and space-saving sample preparation procedure followed by an isocratic mobile phase high-performance liquid chromatography (HPLC) connected diode array detector. Using a handheld ultrasonic homogenizer and 0.6 ml solvent, the analyte was extracted from the sample and purified using a normal-phase InertSep® CN mini-syringe column. For the analysis of a single sample, the total time and solvent consumption were 1 hour and 7 ml, respectively. Linearity, accuracy, precision, and system suitability are all well within the worldwide method acceptance standards. The process could be presented as a standardised analytical method for monitoring CX residues in hen egg yolk on a regular basis.
Author(S) Details
Naoto Furusawa
Graduate School of Human Life Science, Osaka Metropolitan University, Osaka 558-8585, Japan.
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