Matrix components

Complexation method

Oxidation method

Concentration mg・L-1

Recovery %

Concentration mg・L-1

Recovery %

1) Na+, K+, Mg2+, Ca2+, Cl-, ,

3000

99.0 ± 1.0

2500

98.0 ± 1.5

2) Citrate, stearat, fumarate, aspartame, gelatin, sugar, L-ascopric acid.

1000

98.0 ± 1.0

8.0

98.5 ± 1.0

3) Sunset yellow

4.5

97.5 ± 1.5

3.5

97.0 ± 1.5

4) Tropaeolin ooo

6.1

96.5 ± 2.0

4.5

96.0 ± 2.0

5) Allura red Ac

5.0

97.0 ± 2.0

4.0

96.8 ± 1.0