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GC ACCESSORIES | INSTRUMENT SUPPLIES
Packed Column Inlet Conversion
Converting Packed Inlets to Capillary Column Use
Features of Both Conversion Kits:
• Fit Agilent, Bruker/Varian, and other common GCs with 1/4-inch packed
column injection ports (with maximum insertion depth of 4 inches).
• Install easily within 15 minutes.
• Accommodate either 0.32 or 0.53 mm ID fused silica columns
(tubing OD ≥ 0.5 mm).
• Liners are deactivated and extremely inert.
• Liners designed to accept dirty samples are available for either system.
• Press-Tight® connections between the liner and column inlet minimize dead
volume, reduce solvent peak tailing, and sharpen early-eluting components.
The 1/ 4 -inch Vu-Tight liner fits directly into
a 1/ 4 -inch injection port. The connection
between the liner and the column is in the
GC oven, allowing visual confirmation of the
seal. Problems, such as a crushed column end
in the Press-Tight® taper, can be detected
easily, making proper installation worry-free.
The Cyclo Vu-Tight liner prevents nonvolatile
residue from contaminating the column.
Two types of inlet conversion kits are available for a 1/4-inch packed column injection
port to fit either 0.32 or 0.53 mm ID capillary columns: the Vu-Tight liner and the
Uniliner® liner with adaptor (next page). The Vu-Tight liner fits directly into the
1/4-inch injection port and allows visual confirmation of the connection between the
column and the liner. The Uniliner® liner and adaptor work together to allow either
direct or on-column injection when using 0.53 mm ID columns. Both systems incor-
porate a Press-Tight® connection between the liner and column inlet, minimize dead
volume, and reduce solvent peak tailing.
Vu-Tight DI Liners for 1/4 -Inch Packed Injection Port Conversion
• Visually observe the Press-Tight® connection between the column end and liner.
• Fit 0.32 and 0.53 mm ID capillary columns (column ODs from 0.5 mm to 0.8 mm).
• Slotted top prevents obstruction of carrier gas flow.
• Two designs available.
• Operate in the direct injection mode.
Can easily be packed with wool for dirty samples.
Description qty. cat.# price
Vu-Tight DI Liner ea. 20342
Vu-Tight DI Liner 5-pk. 20343
Vu-Tight DI Liner 25-pk. 20344
Cyclo Vu-Tight DI Liners (1/4-inch OD)
Ideal for dirty samples. Spiral bore prevents nonvolatile residue from contaminating
the column.
Description qty. cat.# price
Cyclo Vu-Tight DI Liner ea. 20787
Cyclo Vu-Tight DI Liner 5-pk. 20788
Vu-Tight Installation Fittings Kit
Includes a 1/4 -inch stainless steel nut and graphite ferrule for attaching the liner to the
GC inlet and a 1/4 to 1 /16-inch stainless steel reducer, plus a 1/4 -inch and 0.5 mm ID
graphite ferrule for attaching the column to the liner.
Description qty. cat.# price
Vu-Tight Installation Fittings Kit kit 20504
Vu-Tight DI Liners for 1/4 -Inch Packed Injection Port Conversion
oven
ceiling
Press-Tight®
connection
is visible
it’s a fact