Page 32 - Analytical method for food addtives

E110: Sunset yellow 11

21 16 11 22 15 10

(n=5) (n=5) (n=5) (n=3) (n=3) (n=3)

mg/L mg/L by mg/L by % RSD 0.1 mg/L

µg/L (n=10) in the same day. Detection limit 0.38 mg/L dyes from synthetic mixtures 11.0±0.2 CZE 10.7±0.2 HPLC {9.6} mg/L % at 8 ng/mL

µg/L µg/L µg/L µg/L 5790±116 µg/L 2142±42 mg/L % for 4–60 Ice lolly: % (n=6) Recovery 99 µg/mL (n=3) Detection limit 0.2 µg/L 39.44±1.334 SD 0.8 mg/L Detection limit 3.5

Calibration graph linear in the range 5–90 RSD = 2.2 % for a solution of 30 The determination limit was 5 192±4 Tof (lemon) Gatorade (lemon) Refreshing drink (orange) Calibration graph linear up to 4–200 Recoveries were 92.3–111.3 Real samples: µg/mL Linear range 0–60 µg/mL (n=10) % for 8 RSD 1.9 9.32 Sparkling orange drink: Resu

Performance of method established and applied to 3 real samples (n=5) Performance of method established and applied to real samples Performance of method established and applied to real samples Performance of method established and applied to a real sample Performance of method established and applied to real samples Performanc

Refreshing drinks Non-alcoholic beverages and flavoured syrups Soft drinks Drinks Commercial products Soft drinks, liqueurs, ice-cream

Square wave adsorptive voltammetry CZE cf HPLC 3 Spectro- photometric Integrated solid phase spectrophoto- metric-FIA Derivative spectrophoto- metric ratio spectrum-zero crossing SP spectro- photometry