Interference-free determination of illegal dyes in sauces and condiments by matrix solid phase dispersion (MSPD) and liquid chromatography (HPLC-DAD)

► We have developed and validated a simple method to determine illegal dyes in sauces. ► Sample treatment allows to eliminate carothenoids and other interferences. ► Analyte recoveries were between 60% and 99% and RSD ranging from 2.0% to 10.0%. ► LOD resulted five times lower than the values required by European regulations.