Research Article

Determination of Sudan I and II in Food by High-Performance Liquid Chromatography after Simultaneous Adsorption on Nanosilica

Table 1

Optimal sample extraction parameters.

ParameterValue

SolventEthanol 100%
Solvent volume10 mL
Ultrasonic vibrationNormal mode
Amount of sample0.02 grams
Temperature60°C
Time120 min
Extraction times2 times (5 mL solvent/time)