User guide

76 Advanced User Guide
4 Chromatographic Checkout
To Check TCD Performance
1 Gather the following:
• Evaluation column, HP- 5 30 m × 0.32 mm × 0.25 µm
(19091J- 413)
• FID/TCD performance evaluation (checkout) sample
(18710- 60170)
• 4- mL solvent and waste bottles or equivalent for
autoinjector
• Chromatographic- grade hexane
• 2- mL sample vials or equivalent for sample
• Chromatographic- grade helium as carrier, makeup, and
reference gas
2 Verify the following:
• Chromatographic- grade gases plumbed and configured:
helium as carrier gas and reference gas.
• Empty waste vials loaded in sample turret.
• 4- mL solvent vial with diffusion cap filled with hexane
and inserted in Solvent A injector position.
3 Install the evaluation column. (See the procedure for the SS,
PP, COC, MMI, or PTV in the Maintenance manual.)
• Bake out the evaluation column for at least 30 min at
180 °C. (See the procedure for the SS, PP, COC, MMI, or
PTV in the Maintenance manual.)
• Configure the column
4 Create or load a method with the parameter values listed in
Table 10.
Table 10 TCD Checkout Conditions
Column and sample
Type HP-5, 30 m × 0.32 mm × 0.25 µm
(19091J-413)
Sample FID/TCD checkout 18710-60170
Column flow 6.5 mL/min
Column mode Constant flow
Split/splitless inlet
Temperature 250 °C