SMI Union Column Connector
Column to Column Connecting Parts
SMI (Smart Micro Inert) Union is option for connecting capillary columns that features low leakage, inertness, low dead volume and low heat capacity. Only to be used with fused silica capillary comuns. Metal columns cannot be used.
0.25 mm ID column: SMI union ferrule 0.4 mm ID
0.32 mm ID column: SMI union ferrule 0.5 mm ID
0.53 mm ID column: SMI union ferrule 0.8 mm ID


SMI Union Kits
This kits include 5 ferrules, 2 pairs of unions, 1 connecting nut, and 1 pair of connecting tools
P/N | Ferrule I.D. | Remarks |
---|---|---|
227-35024-01 | 0.4 mm - 0.4 mm | For connecting 0.1 ~ 0.25 mm I.D. column and 0.1 ~ 0.25 mm I.D. column |
227-35024-02 | 0.4 mm - 0.5 mm | For connecting 0.1 ~ 0.25 mm I.D. column and 0.32 mm I.D. column |
227-35024-03 | 0.4 mm - 0.8 mm | For connecting 0.1 ~ 0.25 mm I.D. column and 0.53 mm I.D. column |
227-35024-04 | 0.5 mm - 0.5 mm | For connecting 0.32 mm I.D. column and 0.32 mm I.D. column |
227-35024-05 | 0.5 mm - 0.8 mm | For connecting 0.32 mm I.D. column and 0.53 mm I.D. column |
227-35024-06 | 0.8 mm - 0.8 mm | For connecting 0.53 mm I.D. column and 0.53 mm I.D. column |
SMI Union Ferrule

P/N | Ferrule I.D. | Replacement for Kit | Content |
---|---|---|---|
227-35025-01 | 0.4 mm - 0.4 mm | 227-35024-01 | 10 |
227-35025-02 | 0.4 mm - 0.5 mm | 227-35024-02 | 10 |
227-35025-03 | 0.4 mm - 0.8 mm | 227-35024-03 | 10 |
227-35025-04 | 0.5 mm - 0.5 mm | 227-35024-04 | 10 |
227-35025-05 | 0.5 mm - 0.8 mm | 227-35024-05 | 10 |
227-35025-06 | 0.8 mm - 0.8 mm | 227-35024-06 | 10 |
SMI Union body

P/N | Ferrule I.D. | Replacement for Kit | Content |
---|---|---|---|
227-35026-01 | 0.4 mm - 0.5 mm / 0.4 mm - 0.5 mm | 227-35024-01 / - 02 / -04 | 5 |
227-35026-02 | 0.4 mm - 0.5 mm / 0.8 mm | 227-35024-03 / -05 | 5 |
227-35026-03 | 0.8 mm - 0. 8mm | 227-35024-06 | 5 |