CHROMATOGRAPHY
72
Stopcock & PTFE Diagram / Custom Glass
Custom Column Specifications
Beaded Top
Socket Joint
The Custom Glass Shop has the ability to custom fabricate chromatography columns to your specifications. Columns are available with any standard taper, spherical or threaded joints. Consider the following issues when designing your columns. A – Column OD: Special columns will be constructed using medium wall tubing unless otherwise specified. B – Column Effective Length: Effective length is the length of the straight sides of the column prior to rounding off the tubing for sealing the top joint or the lower stopcock. On a fritted column, the effective length is measured to the fritted disk.
Threaded Outer / Ground Inner
Outer T s Joint
(C)
Effective Length (B)
Column OD (A)
Fritted Disc
C – Top Joint Style and Size:
(F)
D– Lower Column Configuration:
Round Bottom
Please specify round or flat bottom.
(D)
E – Stopcock Type and Size: Please specify stopcock bore. PTFE, Glass or plain drip tip. F – Fritted Disc Required: Special columns will be constructed using a coarse porosity (40-60 micron) fritted disc unless otherwise specified.
Drip Tip
(E)
Flat Bottom
G – Plastic Coated Column:
Stopcock (Glass or PTFE Stopcock Plug)
H – Volume:
I – Quantity:
Custom Glass
CGS is the Custom Glass Shop at DWK Life Sciences. We can be your single source for custom laboratory glassware design and fabrication. Whether you want a slight variation of a standard product or a completely unique design, CGS can do it! In quantities as small as one piece. Our staff of veteran glassblowers will meet your requirements and exceed your expectations.
CGS Capabilities:
• Engineering and design • Graduating • Quartz apparatus • Glass to metal graded seals • Grinding and polishing (machine or hand) • Machine shop
• Microscale glassware • Precision bore tubing • Glass tooling • Large-scale systems • Flasks to 72 liters • Decorating
E-mail: customglass@dwk.com
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