Separations Products & Reviews

Minimizes unnecessary transfers by filtering directly into 50 mL centrifuge tube. Includes two centrifuge tube stands with each case. Cellulose acetate (CA) membranes provide fast flow rates and low protein binding and are good for filtering cell culture media. Polypropylene centrifuge tube is supplied with an individually wrapped cap for storage. Individually packaged, sterile, certified nonpyrogenic. Expiration date a…

6mm steel support spring

10mm steel support spring

12mm steel support spring

15mm steel support spring

40mm steel support spring

50mm steel support spring

72mm steel support spring

This four channel degasser is very efficient at degassing mobile phase, as and when required.

The FE280 is a basic, simple, routine instrument which allows conductivity to be measured across 4 ranges with full temperature compensation. The temperature coefficient is set at 2%/oC. Ideal for standard applications such as water quality measurements or spot checks on on-line equipment.

The automatic FE287 is much more than a conductivity meter. The related mesurement of resistivity and total dissolved solids are of course possible, but in addition, salinity and concentration measurements can be performed, making the meter one of the most flexible available. Six ranges of conductivity are possible and are selected automatically. Readings are displayed in multiples of S/cm or S/m.

The BA380 is a basic, bench conductivity meter. It measures conductivity only, using automatic temperature compensation and, despite its simplicity, affords the user measurements accurate to plus or minus 1%. The meter is calibrated to one point using traditional manual controls and a conductivity standard. Once the calibration is set, the user may select the appropriate range for the sample and read conductivity value directl…

The GP383 is a general purpose meter. Conductivity and temperature measurements can both be achieved, temperature compensation being either manual or automatic. Once calibrated against a standard solution, the cell constant can then be inspected. Know cell constants may be entered directly. The GP383 has a recorder output for use with recorders or dataloggers.

Apart from conductivity, the user is able to measure: resistivity; total dissolved solids; salinity and temperature. These modes may all be accessed without the need to change cell or calibration and are all temperature compensated. One of the most common application areas of conductivity mesurement is concentration control. The RE388TX may be calibrated in concentration units and a sample concentration then read directly from…

The DR359TX is an advanced, ion concentration meter which automatically calculates the relationship between two or more concentration standards and stores this in memory allowing unknowns to be read directly. Anion/cation recognition is automatic and up to 5 calibration points may be entered, enabling the user to cover a wide dynamic measurement range with just one calibration. The DR359TX also provides full pH facilities incl…

These Costar® Spin-X® centrifuge tube filters have a 0.45 µm pore CA membrane-containing filter unit within a 500 µL capacity polypropylene microcentrifuge tube. Cellulose acetate (CA) membranes provide fast flow rates and low protein binding Ideal for removing bacteria, particles, or cells from liquids, HPLC sample preparation and DNA removal from agarose or acrylamide gels. Sterile and certified nonpyrogenic and DNase-/RN…

These Corning® syringe filters have acrylic copolymer housings, female Luer lock inlets and male Luer slip outlets. Polyethersulfone (PES) membranes provide the fastest flow rates, low protein binding and low extractables 100% integrity tested, sterile and certified nonpyrogenic and noncytotoxic Manufactured in accordance with ISO 9001 standards

The Direct Connection UNIGUARD allows the guard cartridge outlet to be directly placed against the analytical column inlet frit. Product detail: We recommend all analytical columns are protected by a guard cartridge, which is replaced on a regular basis. The ID of the analytical column determines the correct ID for the guard cartridge. We offer 10x1, 10x2, 10x3, 10x4mm guard cartridges in all our stationary phases to ensur…

The Javelin guard design is a one-piece format that can be installed without wrenches and requires no holder, which allows quick and easy replacement. Product detail: We recommend all analytical columns are protected by a guard column or cartridge, which is replaced on a regular basis. The ID of the analytical column determines the correct ID for the guard, so we offer 1.0, 2.1, 3.0 and 4.0 diameter Javelin guard columns in…

MultiSEP™ solid phase extraction wells from Thermo Electron offer robust and reproducible sample preparation and pre-concentration on a routine basis.Wells are available in pre-assembled plate format or as individual wells to allow customisable plates to be assembled by the user.Sorbent packings include the ever-popular silica based bonded phases and also include novel and unique chemistries for specialised applications. Multi…

HyperREZ™ columns are specially designed for analysis of organic acids, alcohols, saccharides and carbohydrates. They employ a polymeric support with ligand exchange groups. The ligand exchange resins contain highly sulfonated cation exchange resins that have Group I, Group II or transition metals associated with the chromatographic surface.HyperREZ™ columns are based upon a polymeric resin that shows stability from pH 1 to 14…

BioBasic 8 Columnso   Improved reproducibility, efficiency and column lifetimeso   Range of stationary phases to optimize selectivityo   Powerful resolution, even on short column lengths Product detail:BioBasic 8 columns provide exceptional reliability for separations of proteins, peptides, and other biomolecules through a combination of high purity silica and reproducible, stable bonding.  The proprietary bonding procedure en…

BetaMax Acid Columns o   High surface area area and bonded phase coverage for maximum retention, even in high percentage organic conditionso   Chemistries for acidic compounds Product detail: For alternative selectivity to traditional alkyl phases, we recommend you try the polar embedded phase BetaMax columns. The stationary phase contains urea groups embedded within the C12 chain, which extra interactions with samples to…