Page 119 - Analytical method for food addtives
P. 119
E210–13: Benzoic acid 69
23 4 24 s), low cost, excellent 17 18 13 10 20 16
ppm averaged 98 % CV ranged from 2–5 % Recoveries of benzoic acid from wine and juices spiked at Recovery of spiked fruit vinegar (n=6) 76 % (RSD=8.0 %) ppb Detection limit 1.6 × 10 –4 mol/L. The electrode shows easy construction, fast response time (10–30 response stability and good selectivity for benzoate in the presence of severa
50–300 Detection limit 0.1 an HPLC procedure as well g/100 0.01–12.5
Precision of method established and applied to commercial samples Precision of method established and applied to real samples Precision of method established and applied to commercial samples Precision of method established Precision of method established Method applied to commercial samples in Portugal (n=6) Method applied to comme
Beverages Foods Beverages Syrup Yogurt, non- alcoholic beverages and fruit juices Quince jam Fruit juices Cola beverages and jams Cranberry juice
HPTLC GC–MS (SIM) Potentiometric using a selective electrode HPLC HPLC HPLC HPLC Micellar electrokinetic chromatography (MECC) HPLC
