Determination of Tert-Butylhydroquinone in Flavored Pasta Products by High Performance Liquid Chromatography
The content of tert butyl hydroquinone in seasoned noodle products was determined by high-performance liquid chromatography.After methanol vortex extraction and centrifugation,the sample was subjected to C18 chromatography column with methanol+0.5%formic acid water(50+50)as the mobile phase.The detection wavelength was 280 nm,and the column temperature was 35℃.After elution and separation,the sample was determined on the machine.The results showed that when the concentration of tert butylhydroquinone was between 0 mg·L-1 to 400 mg·L-1,R2=0.999 5,with a good linear relationship,a relative standard deviation of 0.55%,and a recovery rate of 90.9%to 92.8%.It is suitable for accurate determination of tert butylhydroquinone content in seasoning noodle products.
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