The retention gap technique in combination with on-column injection allows concentration of a large sample volume in the capillary column. Choice of the retention gap depends on the solvent used: the flooded zone after injection should be between 20–30 cm/µL Me-Sil retention gap only for use with n-hexane and diethyl ether Phe-Sil retention gap for all solvents except methanol and water CW retention gap for all solvents and especially for methanol and water A retention gap must be inert without any noticeable retention. Me-Sil retention gaps are more inert than Phe-Sil, while Phe-Sil is less susceptible to contamination. Max. temperatures: CW retention gaps 250 °C Me-Sil and Phe-Sil retention gaps 320 °C Retention gaps can also be used as transfer lines or precolumns (contamination capacity about 5–10 µg).
- UPC:
- 41102916
- Condition:
- New
- Availability:
- 3 Days
- Weight:
- 1.00 Ounces
- HazmatClass:
- No
- WeightUOM:
- LB
- MPN:
- 723713.1
