Microbore Guard Columns

Upchurch Scientific® NanoTight Unions improve capillary tubing connections in several ways. The sleeving system and internal design of the unions greatly reduce the incidence of tubing misalignment. The webbed thru-hole minimizes breaking of fused silica at the junction point while adding only miniscule swept volume (8 nL for the P-779-01 and 13 nL for the U-411). The results are fewer blockages, fewer flow rate reductions and fewer back pressure problems.

Connect capillary tubing with these unions using the NanoTight Fittings and Sleeves. These versatile unions can also be used to connect capillary tubing to 1/16" OD tubing, or to connect two 1/16" OD tubing lines. To connect 1/16" OD tubing with our P-779-01, use any standard polymer 10-32 coned fittings, such as our NanoTight Fittings. To connect 1/16" OD tubing with our U-411, use the included fittings.

The pressure holding capability of the NanoTight Unions depends on the fittings and tubing sleeves selected.

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C-128 , MicroBore Guard Column

1.0 mm ID x 2 cm
  • Ideal for Microbore HPLC
  • Easily Dry Packed (or Slurry Packed with Adapter)
  • Made of PEEK™ Polymer and Stainless Steel
This Upchurch Scientific® ultralow volume guard column is ideal for narrow-bore chromatography. The unpacked guard column allows you to exactly match the chemistry of your column, resulting in optimum column protection. The total packing volume of 16.2 µL ensures maximum column efficiency and analytical column protection. The column can be easily dry packed using the specially designed funnel (C-128-20). A 3 g bottle of our C18 packing material will pack this column more than 120 times.

Frits often become plugged before a guard column is contaminated. The two 0.5 µm frits included with this guard column can be changed in minutes. Optional 2 µm frits may be purchased separately (C-408).
$135.06

C-128-31 , Frit SS Blk 0.5µm

1.0 mm ID x 2 cm
  • Ideal for Microbore HPLC
  • Easily Dry Packed (or Slurry Packed with Adapter)
  • Made of PEEK™ Polymer and Stainless Steel
This Upchurch Scientific® ultralow volume guard column is ideal for narrow-bore chromatography. The unpacked guard column allows you to exactly match the chemistry of your column, resulting in optimum column protection. The total packing volume of 16.2 µL ensures maximum column efficiency and analytical column protection. The column can be easily dry packed using the specially designed funnel (C-128-20). A 3 g bottle of our C18 packing material will pack this column more than 120 times.

Frits often become plugged before a guard column is contaminated. The two 0.5 µm frits included with this guard column can be changed in minutes. Optional 2 µm frits may be purchased separately (C-408).
$5.20

C-408 , Frit SS Nat .038 x .03...

1.0 mm ID x 2 cm
  • Ideal for Microbore HPLC
  • Easily Dry Packed (or Slurry Packed with Adapter)
  • Made of PEEK™ Polymer and Stainless Steel
This Upchurch Scientific® ultralow volume guard column is ideal for narrow-bore chromatography. The unpacked guard column allows you to exactly match the chemistry of your column, resulting in optimum column protection. The total packing volume of 16.2 µL ensures maximum column efficiency and analytical column protection. The column can be easily dry packed using the specially designed funnel (C-128-20). A 3 g bottle of our C18 packing material will pack this column more than 120 times.

Frits often become plugged before a guard column is contaminated. The two 0.5 µm frits included with this guard column can be changed in minutes. Optional 2 µm frits may be purchased separately (C-408).
$5.69

C-128-40 , Slurry Packing Adap...

1.0 mm ID x 2 cm
  • Ideal for Microbore HPLC
  • Easily Dry Packed (or Slurry Packed with Adapter)
  • Made of PEEK™ Polymer and Stainless Steel
This Upchurch Scientific® ultralow volume guard column is ideal for narrow-bore chromatography. The unpacked guard column allows you to exactly match the chemistry of your column, resulting in optimum column protection. The total packing volume of 16.2 µL ensures maximum column efficiency and analytical column protection. The column can be easily dry packed using the specially designed funnel (C-128-20). A 3 g bottle of our C18 packing material will pack this column more than 120 times.

Frits often become plugged before a guard column is contaminated. The two 0.5 µm frits included with this guard column can be changed in minutes. Optional 2 µm frits may be purchased separately (C-408).
$149.89