GPC Columns provide environmental sample clean-up.

PL EnviroPrep GPC Columns permit one-stage clean-up procedure, according to EPA Methods, for determination of pesticides in variety of matrices such as soil and animal tissue. Matrix is extracted and higher molecular weight fractions such as lipids, polymers, natural resins, and dispersed high molecular weight components are eliminated. Featuring 10 Â-µm particle size and...

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High Resolution Columns are designed for organic GPC.

High Resolution Columns are designed for organic GPC.

PlusPore series columns, designed for high resolution organic gel permeation chromatography (GPC), are made using polymerization process to produce particles which exhibit specific, controlled pore structure. Multi-pore structures have pore volume compared to PS/DVB packing materials and offer chemical and physical stability. They permit transfer across full range of organic solvents with little...

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Sample Trap Columns come in conductive versions.

Sample Trap Columns come in conductive versions.

Capillary Sample Trap Columns have stainless steel housing, allowing voltage into fluid path, as in electrospray applications. Suited for separating and concentrating and/or purifying biological samples, heart of assemblies is fused silica capillary column. Units are available unpacked or packed with reversed-phase C18, high-carbon load, 5 Â-µm/300 Angstrom spherical silica, or Strong Cation...

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Drawdown Columns check flow rate of metering pumps.

Drawdown Columns check flow rate of metering pumps.

Calibration Columns measure drawdown rate on suction side while leaving discharge undisturbed in normal steady state operation condition. Products can also be used to determine if check valves are worn or dirty. Available in capacities from 100-4,000 ml, products are suited for use with pump capacities up to 120 gph. Constructed of PVC, units have slip-on top caps for filling and cleaning....

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Column separates peptides and proteins.

Column separates peptides and proteins.

Model PLRP-S 3 Â-µm column comes in 100ÃÆ'â€-¦ and 300ÃÆ'â€-¦ pore sizes. Media is offered packed in short columns for rapid resolution LC/MS, where complete chromatographic resolution is not required, as MS is used to provide detailed information. Longer columns in 2.1 and 1.0 mm ID are available for higher resolution separations. PLRP-S 100ÃÆ'â€-¦...

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Capillary Columns have high temperature limits.

Capillary Columns have high temperature limits.

ValcoBondÂ-® Capillary Columns receive individual rigorous testing to insure they meet standards for resolution, retention characteristics, inertness, bleed, and reproducibility. High upper temperature limits enhance column bake out, reducing sample carry-over and cycle times. Liquid phase processing produces low bleed characteristics while maintaining identical retention characteristics.

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Cleanup System reduces downtime of GC and MS.

Cleanup System reduces downtime of GC and MS.

AutoPrep 2000 automates separation of interfering coextractives from target analytes in samples prior to gas chromatograph or GC/mass spectrometer analysis, extending life of analytical columns. It includes autosampler that allows up to 60 samples to be automatically cleaned and collected in flasks. Windows-based software controls GPC cleanup. Unit works with all GPC cleanup methods, including...

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