— material: fused silica;
— size: l = 30 m, Ø = 0.25 mm;
— stationary phase: poly(dimethyl)siloxane R (film thickness 0.25 µm).
Carrier gas: helium for chromatography R.
Flow rate: 1 ml/min.
Split ratio: 1:100.
0 - 15
Detection: flame ionisation.
Injection: 1 µl of test solution (b) and reference solution (b).
System suitability: reference solution (b):
— resolution: minimum 3.5 between the peaks due to α-tocopherol and α-tocopheryl acetate.
— total: maximum 4.0 per cent;