PPG Standard Prep for AB API4000

Come on, Man: Don't be silly to send us this Newbie question? Are you want to test our GC knowledge?
(1) Condition the GC Column according the manufacturer' recommend.
(2) Check the septum and the inlet, make sure NO cross-contamination -> inject the Blank.
(3) Optimize your method, change the Oven temp Ramp -> Higher the Initial temp, Low down the Temp Ramp.
(4) Low down the Split Ratio.
(5) Adjust the GC gas Flow Rate.

Sample Overload on Column? Example 2

That maybe Sample Overload: Low down the injection Concentration per injection or Injection volume per column. Or increase the Split Ratio that maybe help.

Sample Overload on Column?

From my view, maybe Sample Overload on the column.

Inlet Temp: 250， Initial Temp: 100; Hold 5 min，then 10 C/min to 230 C，Hold 5 min.
FID Temp: 280，Injection Vol. 0.2ul.