Glassware Catalog

Peptide Synthesis Funnels - Sigma-Aldrich Glassware Catalog


Flasks  •  Funnels  •  Vessels


On this page:
Fritted filter funnels for solid-phase synthesisFritted filter funnels
Pressure filter/drying funnelsPressure filter/drying funnel assemblies



Fritted filter funnels for solid-phase synthesis

With glass frit, 10 to 20 mm porosity, S.T. 24/40 top joint, S.T. 14/20 side joint, and gas/vacuum inlet with 0-3mm PTFE needle-valve and hose barb.



Cap. (mL)
Catalog Number
15
30
60






Back to Top



Fritted filter funnels

Funnel has screw-cap with PTFE liner, 25 to 50 mm glass frit, and 5mm outlet tube fitting with a PP cap.

Cap. (mL)
Tube L (mm)
Thread size
Catalog Number
26
2 65
18 - 415
20
285
28 - 400
60
132
38 - 430

Replacement parts

Description
Thread size
Catalog Number
Screw-caps
 

 

Black plastic with PTFE liner
18 - 415
 
28 - 400
 

38 - 430


Back to Top

Pressure filter/drying funnels

Useful for drying air-sensitive compounds with inert gas or as a pressure filter funnel. The threaded top connection provides a wide opening for easy access to contents and provides a positive connection without the use of expensive pinch clamps. Funnels are heavy wall throughout with a coarse fritted disc. Supplied complete with fritted funnel and top inlet assembly.

Funnel cap. (mL)
Disc diam. (mm)
Thread size
Catalog Number
115
20
GL 32
160
40
GL 45
140
65
GL 45
350
80
GL 45
600
90
GL 45



Back to Top



Pressure filter/drying funnel assemblies with removable fritted disc


Pressure or vacuum can be applied alternately or simultaneously for fast filtration or drying. Unique design allows the fritted disc to be removed and replaced. The bottom support is all PTFE and has a vent. A port is supplied on the top cap for an optional adjustable pressure relief valve. Large top and bottom openings are 85mm i.d. allowing easy access to funnel contents. Complete assembly includes top cap, funnel, coarse frit, 90mm base assembly, and 2L bottle with GL 45 thread.

Funnel cap. (mL)
Catalog Number
500
1,000
2,000

Back to Top