Mobile Phase Accessories

The flat filter element sits parallel to the bottom of the mobile phase reservoir, allowing the filter to draw 98% of the mobile phase without drawing air into the system. Conventional cylindrical mobile phase filters begin to draw air into the system when approximately 10% of the solvent remains in the reservoir. The Last Drop Filter allows more analyses per batch of mobile phase and helps reduce hazardous waste. 22.1 mm OD.

• Avoid messy pooling around mobile phase waste containers.
• Audible alarm instantly alerts user, preventing overflow.
• Compact, battery operated unit.
• Available for 4-liter and GL-45 solvent bottles.
  
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Kit includes: bottle adapter, bottle adapter nut, filter inlet cap, grid support, vacuum hose barb, tube compression fitting, 47 mm grid, 47 mm 0.22 µm filter membrane, 47 mm 0.45 µm filter membrane, 1/4″ OD x 1/8″ ID ultra chemical resistant, Teflon® FEP lined Tygon® tubing (3′), 6″ x 6″ box with shrink wrap insert. Includes universal threads designed for 4L or Wheaton bottles. Use with GL-45 bottles requires Opti-Cap® Adapter (sold separately).

Allow the use of the Opti-Cap® with 4-liter solvent bottles.

Allow the use of the Hub-Cap with GL-45 solvent bottles.

The UHP Pulse Dampener provides minimal flow pulsation at system pressures up to 18,000 psi. Its low dead volume (220 µL at atmospheric pressure) reduces overall system volume for UHP applications. The UHP Pulse Dampener has a stainless steel fluid path.

• Self-priming cartridge valve restricts flow to one direction.
• Prevents fluids from back-flowing into column after a pump failure.
• Low flow resistance and low internal volume for rapid closure.
• Operates independently of gravity.
• Protected from contamination by 1/4″ diameter 2 µm frit.
• Crush-proof construction.

Hub-Cap bottle tops are a great way to neatly keep your mobile phase lines where they belong. Use instead of parafilm, aluminum foil, or tape on your mobile phase reservoirs.

• Reduced baseline noise.
• Increased sensitivity.
• Improved gradient accuracy, for more reproducible results.
• Increased reaction efficiency in post-column derivatization.

• Operation range: 5-55 °C, ±0.2 °C.
• Ability to program multiple temperature points.
• Accommodates columns up to 30 cm in length and 7.8 mm ID.
• Compact design.
• Achieve optimum performance and efficiency when used in conjunction with a mobile phase pre-heater.

• Easy to set up!
• Operation range: 5 °C above ambient to 85 °C, ±1 °C.
• Lightweight, compact design fits in small spaces.
• Column holder can be placed in any orientation.
• Achieve optimum performance and efficiency when used in conjunction with a mobile phase pre-heater.

• Heats mobile phase before it enters a heated column.
• Minimizes temperature changes, to help keep analyte peaks sharp.

• Rupture-proof, no diaphragm—minimal risk of failure or leaks.
• Clean flush-out design—no sample carryover.
• Low internal volume—negligible effect on analyte bandwidth.

• Reduced baseline noise.
• Increased sensitivity.
• Improved gradient accuracy, for more reproducible results.
• Increased reaction efficiency in post-column derivatization.

Fluid resistor technology eliminates adjustments to capillary tubing for optimizing split ratio. Wide range of interchangeable resistors available.

• Compact unit (2.5″ x 1.5″) can be placed almost anywhere.
• Small, 160 µL dead volume at atmospheric pressure.
• PEEK unit can withstand pressures to 5,000 psi (34,474 kPa).
• 316 Stainless steel unit can withstand pressures to 6,000 psi (41,369 kPa).

The Degasys Ultimate Degasser uses tubing composed of an amorphous fluoropolymer that is 200 to 300 times more gas permeable than PTFE. This translates into the ability to use shorter tubing for removing dissolved gas. This new material also has better tubular burst strength than PTFE. To prevent cross contamination, each channel on this Degasys unit is individually encased within its own vacuum chamber.

Bubbles in an HPLC system can cause check valve malfunctions and pump cavitation, seriously affecting pump performance. The debubbler removes bubbles from the fluid stream before it enters the pump.

This high-pressure cup-type filter can be used in fluid streams operating to 15,000 psi (103,421 kPa). The cup-shaped filter elements have a large (2.5 cm²) surface area to give long operating lifetime. Mounted in screw-type adapters, they are easily removed for cleaning. Normally, backflushing and cleaning in an ultrasonic bath with an appropriate solvent will restore them. If they become permanently clogged, replacement elements are available.
Housings and all wetted parts are 316 stainless steel. Filters are packaged with gland nuts and ferrules. A bulkhead type fitting is available for thru-panel mounting. Tubing 1/16″ OD; connectors–CPI.

47 mm filtration apparatus with fritted glass support is recommended for routine filtration of corrosive liquids and removal of particles from HPLC solvents. The ground joint connection eliminates phthalate contamination that can occur when using silicone or neoprene stoppers. The support base has a coarse porosity glass frit and an integral vacuum connection, located above the drip tip to prevent contamination of the vacuum line with filtrate droplets. Each apparatus includes a funnel, an anodized aluminum clamp, a 47 mm fritted glass support base, and a filtration flask.

The sparge filter is an inexpensive way to prepare and maintain mobile phases free of dissolved gas. Filters are made from 316 stainless steel and PEEK and are compatible with most solvents.

A 316 stainless steel knurled cap and Tefzel® CPI ferrule seal to 1/8″ OD Teflon® tubing when finger-tightened onto the precision-machined filter holder. The filter element is replaceable. Standard 10 µm porosity protects delicate pump components from particles but introduces very little pressure drop. 1/8″ OD. May be used as a helium sparging diffuser.

A type 316 stainless steel tip with a Tefzel® collar seals to a corrosion-resistant type 316 stainless steel filter element. The slip-on filter easily attaches to the pump inlet line, without the use of wrenches. The universal tip accommodates standard Teflon® tubing inner diameters. The cylindrical filter is standard 10 µm porosity. 1/8″ OD. Fits Altex, ISCO, LDC, Varian, Waters, PerkinElmer, and other pumps.

The LO-Pulse Pulse Damper is a patented, wide-dynamic-range 316 stainless steel device that smooths pulsations and maintains constant flow at system pressures from 500 to 6,000 psi (3,447 to 41,369 kPa). The flow path volume is only 0.9 mL and the path is efficiently swept, eliminating solvent memory effects when changing mobile phases.
The LO-Pulse pulse damper also is available in a space-saving, economical kit that includes hardware for mounting the pulse damper on a bracket, or for installing feet on it for bench-top use.

Fits all standard GL-45 bottles; has two 1/8-inch holes and one 1/16-inch hole for tubing. Holes are not threaded.

The most economical way to helium-sparge and deliver HPLC mobile phases. The Opti-Cap® top fits all standard GL-45 bottles and has two 1/8-inch holes and one 1/16-inch hole for tubing. All three openings are designed for threaded PEEK plugs