Page 33 - Analytical method for food addtives
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Analytical methods for food additives
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Statistical parameters Reference 9 mg/L SD 4.03 % Recovery 93.81–106.1 mg/L % for 100 RSD 4.0 17 % Recoveries 95–103 Calibration graph linear % RSD 2.2–5.8 13 % Recovery 92.1–107.9 (n=5) µg/g 122.0±1.8 Sugar candy: Real samples: (n=5) µg/g 3.2±0.2 Jelly: % Recoveries 88–110 Calibration graph linear (
Extent of validation Performance of method established on standards Performance of method established and applied to a soft drink sample Method applied to 2 real samples (n=5) Method applied to 3 commercial products (n=3) Method applied to 2 real samples (n=3)
Matrix Commercial dyes Beverages First derivative Confectionery products Soft drinks Candy and carbonated drinks
Table 1.2 cont’d Method Spectro- photometric CZE spectro- photometry Ratio derivative voltammetry Simultaneous spectro- photometry
