5 Replies Latest reply on Jan 17, 2018 12:00 PM by james_jenkins

    We have a GC method with a spit ratio of 0.2:1.  I thought that was impossible.  How is it that this split ratio is acceptable?

    ccbarnes5

      One of the AD people created a method with a 0.2:1 split ratio.  The GC is an Agilent 6850 and it is interfaced with a static headspace sampler (Agilent 7697A).  Much to my surprise, the method actually worked!  Not only for that analyst but also for another analyst - 3 days later.  The instrument used for this analysis seems to be the only instrument on which this method was successful.  When the method was tried on two other instruments, the inlet pressure could not reach the set point.  This is what I would expect.  Why would it work fine on the first instrument?