• Scott Snyder posted a new activity comment 3 months, 4 weeks ago

    In reply to: Tao Wang posted an update in the group Analytical Laboratory Instrumentation
    #Discussion Hello, I am trying to develop a GC-FID method for analyzing glycol that comes from glycol dehydration plant […]
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    Excellent question.  Usually, internal standard will correct for injection error.  The exception to this rule is when you are on the edges of your linearity.  If bias creeps in from high or low signal of IS or analyte, it may not be corrected for.

  • Scott Snyder posted a new activity comment 4 months ago

    In reply to: Tao Wang posted an update in the group Analytical Laboratory Instrumentation
    #Discussion Hello, I am trying to develop a GC-FID method for analyzing glycol that comes from glycol dehydration plant […]
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    General way to do this is divide and conquer.  What is the error on replicate injections?  Move back one step in your protocol.  WHat is the error there?  Find the places where your error increases the most and focus on them.