Study on the Determination of Lemon Yellow in Beverages by UV Visible Spectrophotometry
The method for determining lemon yellow in beverages using UV visible spectrophotometry was established by combining silver nanoparticles with lemon yellow.The optimal measurement conditions were selected through a single factor experiment method,which involved adding 3.0 mL of silver nanoparticle dispersion as the reaction reagent,adjusting the pH of the system to 6.0,reacting at 4℃for 20 minutes,and measuring the absorbance at a wavelength of 400 nm.Further methodological validation has shown that this method has a wide linear range,good linear relationship,and good accuracy and precision,and can be used for the detection of lemon yellow content in beverages.
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