Identification of Synthetic Food Colours in Selected Confectioneries and Beverages in Jaffna District, Sri Lanka

Table 1

TLC and spectrophotometric analysis of nonpermitted dye in “instant red jelly” samples.

Sample number	Rf value	λmax value/nm
Brand 1-J90	0.22	430
Brand 1-J91	0.22	430
Brand 1-J92	0.23	430
Brand 1-J93	0.23	430.5
Brand 2-J94	0.21	430
Brand 2-J95	0.22	431
Brand 2-J96	0.23	430
Brand 2-J97	0.22	432