In reply to: Tao Wang posted an update in the group Analytical Laboratory InstrumentationView
Tao – in addition to my previous comments.
Most split injections work better at >20mls/min in addition 0.1ul injection would cause larger errors. Suggest 0.5ul injection at 10:1 split ratio. This should be equivalent to your current column loading. This should improve your repeatability.
Not sure why you needs FID temperature of 400C?
Hope you do not have a regular vessel graphite ferrule for the jet and it is graphite. 300C should be more than sufficient.