Division 6.2.1 Column: stainless steel.

Length: 1,8 m.

Diameter: 3 mm.

Support: Gaschrom Q 80 to 100 mesh.

Stationary phase: silicon oil DC 200 or equivalent, 20 %. Condition the column overnight at 100 ^oC (carrier gas flow at 25 ml nitrogen per minute) and repeat every night. After each fourth or fifth injection recondition the column by heating for 30 minutes at 100 ^oC.

Temperatures:

column

70 ^oC,

injector

150 ^oC,

detector

250 ^oC.

Gas flow carrier: 35 ml of nitrogen per minute.