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Glassware Catalog

Chromatography, HPLC - Sigma-Aldrich Glassware Catalog


HPLC  •  LC  •  TLC

 
On this page:
Four Valve CapsThree Valve CapsThree Hole CapsAccessories

Features:
  • Safety coated with autoclavable PVC
  • Protects light sensitive materials to 385nm
  • Fingertip controls for easy, precise control
  • Specially designed valves and connections assure leak free operation
  • Low profile minimizes chance of tipping
  • Reservoir indents improve mixing
  • Reference graduations allow run time calculations

HPLC systems with four valve caps

Valves controlling helium sparge, venting, vacuum and solvent delivery are conveniently located on the front of the cap. All tubing connects to the back of the cap, minimizing clutter. Uses standard 47mm diameter filter membranes. Available as standard (PTFE/PP O-rings) or THF-resistant systems (Chemraz O-rings).





Each system includes:
  • (1) High-performance HPLC reservoir
  • (1) 4-valve cap
  • (1) Solvent pickup adapter with PTFE tubing
  • (10) 1/4-28 nuts for 1/8in. o.d. tubing
  • (10) Ferrules for 1/8in. o.d. tubing
  • (2) Vacuum adapters, 1/4-28 to 1/4in. i.d. tubing
  • 10ft PTFE tubing, 1/8in. o.d.
  • (2) 25m SS filters
  • (1) PTFE coated stir bar
  • (2) Adapters for 1/4-28 to 1/8in. i.d. tubing (for Waters HPLC systems with 1/8in. tubing)
Cap.
(mL)
Dimensions
diam. x H (mm)
Standard systems
Catalog Number
THF-resistant systems
Catalog Number
250
175 x 285
500
190 x 300
1,000
120 x 400
2,000
150 x 450
5,000
195 x 500
10,000
240 x 595
20,000
305 x 675

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Economy HPLC systems with three valve caps


These systems allow for the sharing of one filtration/degassing cap assembly (sold separately on next page) with several solvent reservoirs. A simple cap change is required between the filtration and sparge/delivery operations. Available as standard (PTFE/PP O-rings) or THF-resistant systems (Chemraz O-rings).



Each system includes:
  • (1) High-performance HPLC reservoir
  • (1) 3-valve delivery cap
  • (8) 1/4-28 nuts for 1/8in. tubing
  • (8) Ferrules for 1/8in. o.d. tubing
  • 10ft PTFE tubing 1/8in. o.d.
  • (2) 25m SS filters
  • (1) PTFE coated stir bar
  • (2) Adapters for 1/4-28 to 1/8in. i.d. tubing
    (for Waters HPLC systems with 1/8in. tubing)
Cap.
(mL)
Dimensions
diam. x H (mm)
Standard systems
Catalog Number
THF-resistant systems
Catalog Number
250
175 x 285
500
190 x 300
1,000
120 x 400
2,000
150 x 450
5,000
195 x 500
10,000
240 x 595
20,000
305 x 675

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Economy HPLC systems with three hole caps


This economy system is designed to the same exacting performance standards as the economy system on the previous page. Not recommended for THF or chlorinated hydrocarbons.

Each system includes:

  • (1) High-performance HPLC reservoir
  • (1) 3-hole delivery cap
  • (4) 1/4-28 nuts for 1/8in. o.d. tubing
  • (4) Ferrules for 1/8in. o.d. tubing
  • (3) 1/4-28 solid plugs
  • 10ft PTFE tubing, 1/8in. o.d.
  • (2) 25m SS filters
  • (1) PTFE coated stir bar
  • (2) Adapters for 1/4-28 to 1/8in. i.d. tubing
    (for Waters HPLC systems with 1/8in. tubing)
Cap.(mL)
Dimensions
diam. x H (mm)
Catalog Number
250
75 x 285
500
90 x 300
1,000
120 x 400
2,000
150 x 450
5,000
195 x 500
10,000
240 x 595
20,000
305 x 675

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Accessories


Filtration/degassing cap


Glass-filled PTFE construction with a quick turn cap to secure funnel or solvent pick up adapter. Supplied complete with 47mm fritted glass membrane support. For use with solvent pickup adapter (see below).

Z52,899-4


Solvent pickup adapter with valve

This all glass adapter is designed specifically for use with the filtration/ degassing cap (above) and all Aldrich HPLC solvent reservoir systems. This adapter holds a membrane filter securely in place while providing for continuous in-line filtration of mobile phase. Supplied complete with PTFE connector and 3ft of 1/4in. PTFE tubing and 4mm PTFE stopcock.

Z52,900-1


HPLC membrane filters
  • Nylaflo - nylon, for general-purpose applications, offers good chemical resistance with low extractables
  • PTFE - PTFE on PP support for better stability and easier handling, chemically inert for aggressive organics, hydrophobic. Designed to perform at high temperatures (up to 145°C)

Membrane
Diam (mm)
0.2 mm
Catalog Number
0.45 mm
Catalog Number
1.0 mm
Catalog Number
Nylaflo
47
-
PTFE
47

For a full listing of filtration supplies please see the Aldrich Handbook.

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