Identification and determination of synthetic dyes in soft and alcoholic drinks

INTRODUCTION

The method allows identification and determination of synthetic dyes in samples of soft and alcoholic drinks by capillary el ectrophoresis.

MEASURING METHOD

The Capillary Electrophoresis (CE) method for the determination of synthetic dyes is based on their differential migration in a narrow quartz capillary under the influence of the applied electric field. Identification and quantitative determination of dyes is performed by measuring the UV absorbance at 254 nm (for “CAPEL-103РТ/104Т” systems) or 215 nm (for “CAPEL-105/105М” systems) wavelength.