Hey all,
I have an injection problem with a G1367A WPALS 1100 series autosampler. The needle moves to the sample just fine, picks up the sample just fine, but when the needle moves up sometimes the sample vial is picked up as well and prevents the needle assembly arm from moving back to the injection port. We have replaced the needle and the problem continued. It is not a problem with the transport itself. When the sample drops off the needle, everything moves fine. It is only when the sample vial does not properly come off the needle and is picked up as the needle rises that it errors out.
What could be causing this?