What is the correct syringe to use for an Agilent split/splitless inlet with a CTC PAL3 AutoSampler? - WKB276390
ENVIRONMENT
- CTC PAL AutoSampler
- CTC PAL3 RSI
- Agilent 8890 GC
ANSWER
- 10 µL
- PAL System Smart syringe 10 µL, metal plunger, gauge 26S, needle length 57 mm, point style conical for tool D7/57
- Waters part: 700012540 - 10µL SmartSyringe (Liquid)
- CTC part: SF10-57-M-26S-CO
- PAL System Smart syringe 10 µL, metal plunger, gauge 26S, needle length 57 mm, point style conical for tool D7/57
ADDITIONAL INFORMATION
The syringe for the split/splitless inlet must have a conical tip to prevent tearing of the septum during injection. The typical needle diameter is either 26 or 26S gauge. 26S denotes a thicker wall size of the needle (maintains the same outer diameter, making the needle stronger and more suitable for AutoSampler operation).
Factor to consider: Should the syringe plunger be all stainless steel or terminate in PTFE? PTFE may lead to carryover or contamination.
The volume of the syringe is also an important factor to consider, and the required injection volume must be considered. It is not the best practice to inject less than 5% or over 80% of the syringe volume. For very small injection quantities, consider a smaller, 5-µL or 1-µL syringe.
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