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Sample Introduction
Needle Gauge Selection
Inlet Needle Gauge Column Type
Packed, split or splitless (including
PTV)
23 gauge or 23/26 gauge tapered Any
Cool on-column 23/26 gauge tapered or 26 gauge 530 µm
Cool on-column 26/32 gauge tapered 320 µm
Cool on-column 26/32 gauge tapered 250 µm
• Syringe needles compatible with Agilent Automatic Liquid Samplers are 42 mm long
and have an HP style or cone shaped tip.
• The Merlin Microseal requires 23 gauge needles.
• The smaller the gauge, the larger the needle diameter.
Needle Gauge Selection
Cone tip
Tapered needle
Needle tips
Needle Tip
Needle Shape
Tips & Tools
For highest productivity and
to minimize coring, use Agilent
Premium Non-Stick Inlet Septa
with Center Point Guide.
See page 46.