Page 210 - Analytical method for food addtives

E297: Fumaric acid and its salts 139

22 17 9 16 18 23

nmol nmol

CV 3.1 % at 50 CV 2.8 % at 200

(n=5) (n=5) Recovery 99.2 %

80.6–93.3 % 88.9–88.1 % 103.9 %±3.2 (n=9) 99.5 %±2.8 (n=9) Method precision (coefficient of variation) 1.5 % (n=10) Measurement precision (coefficient of variation) 1.01 % RSD 4.5 % (n=5) for peak area on standard solution 2 mg/L RSD 0.94 %

Detection limit 0.005 % Recoveries from soft drinks samples jam samples Calibration graph linear. Recovery in red wine Calibration graph linear 0.05–0.4 mg/100 mL Detection limit 1 × 10 –4 mg/mL Detection limit 0.5 mg/L Detection limit 76 µg/L Upper concentration limit 3 mg/L Recovery 59.1 % (n=3) in standard

Performance of method established and applied to commercial samples Performance of method established and applied to beverage samples Performance of method established and used for survey of 1992 harvest Performance of method established and applied to commercial samples Performance of method established and applied to grap

Soft drinks, jams Beverages Green beans Pears, peach nectar, apple juice Grape juice Alcoholic beverages

RP–IPC GC–MS
GC LC IC IC