This standard specifies the methods for determination of synthetic colour in foods.
This standard is applicable to the determination of synthetic colour in foods.
Detection limits of this method: in case of new red 5ng, lemon yellow 4ng, amaranth 6ng, carmine 8ng, sunset yellow 7ng, erythrosine 18ng and brilliant blue 26ng, where the injection mass is 0.025g, the detectable concentrations are 0.2mg/kg, 0.16mg/kg, 0.24mg/kg, 0.32mg/kg, 0.28mg/kg, 0.72mg/kg and 1.04mg/kg respectively.
Foreword i
1 Scope
Method I High Performance Liquid Chromatography
2 Principle
3 Reagents
4 Apparatus
5 Analytical Procedure
Method II Thin Layer Chromatography
6 Principle
7 Reagents
8 Apparatus
9 Analytical Procedure
Method III Oscillographic Polarography
10 Principle
11 Reagents
12 Apparatus
13 Analytical Procedure
14 Calculation
15 Precision
