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... gives precise results from your GPC/SEC instrument. Additional GPC/SEC special detection capabilities like multi-angle light scattering (MALS) detectors or viscometry can be added for flexibly. Features Robustness: ...
Agilent Technologies - Life Sciences and Chemical
The 1290 Infinity II GPC/SEC System is a complete GPC/SEC analysis solution that is capable of both analytical- or microscale operation. The low-volume refractive index detector enables microscale operation, ...
Agilent Technologies - Life Sciences and Chemical
... pump, degasser, autosampler and column oven, for high quality GPC/SEC and accurate molecular weight measurement. OMNISEC RESOLVE combines with OMNISEC REVEAL to form a complete OMNISEC GPC/SEC solution ...
... detection for GPC/SEC Molecular weight, intrinsic viscosity and numerous other parameters can be measured with OMNISEC REVEAL, the world’s most advanced integrated GPC/SEC multi-detector available. It ...
A GPC chromatograph is a liquid-phase device similar to an HPLC unit. It separates the components of a mixture for analytic purposes based on molecule size (size exclusion). The mobile phase, the eluent, carries the solution containing the mixture through the column. Molecules of varying size take different amounts of time to pass through. A detector analyzes them as they leave the column.
ApplicationsThese devices are used primarily to separate macromolecules for molar mass measurement.
TechnologiesAn aqueous liquid constitutes the mobile phase. The stationary phase consists of porous polymer beads, a gel, which captures the smallest molecules.
There are two types of column calibration. Universal calibration uses columns containing a homogeneous porous material. Linear calibration employs heterogeneous porous material which traps molecules of varying size.
The specific application will determine choice of calibration system, using a stationary phase either of polymer gel or of silica gel. Another important element is whether the chromatograph is equipped with a refractive index detector or an ultraviolet detector.
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