GPC/SEC System

Malvern Omnisec CHR600 + CHR7100

Condition Used
Stock Number 1525.2A
This listing is for the Malvern CHR6000 + CHR7100 OMNISEC RESOLVE and REVEAL GPC/SEC


These units are in full working condition and ready for immediate use


What the System Measures
The combined OMNISEC RESOLVE and REVEAL GPC/SEC System provides absolute molecular weight, intrinsic viscosity, concentration, and conformational data in a single run. This eliminates the need for calibration standards, improving accuracy and confidence in results.


OMNISEC RESOLVE – The Chromatography Module
OMNISEC RESOLVE integrates four key components into a single unit:


Pump: Delivers a flow rate range of 0.01–10 mL/min with low pulsation (0.15% at 1 mL/min in water), ensuring stable baseline signals.
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Degasser: Features a low-volume (960 µL) design for rapid solvent exchange, enhancing system productivity.
Autosampler: Accommodates up to 192 samples, with temperature control from 4°C to 60°C, suitable for both vials and 96-well microtiter plates.
Column Oven: Controls temperatures up to 65°C, supporting up to six analytical columns for optimal separation conditions.
This integrated design minimizes baseline noise and enhances measurement sensitivity, particularly for low-concentration or low-molecular-weight samples.


OMNISEC REVEAL – The Detector Module
OMNISEC REVEAL is an advanced, fully integrated, temperature-controlled multi-detector module that includes:


Refractive Index (RI) Detector: Highly sensitive and stable, enabling accurate concentration measurement, even for low-concentration samples.
UV/Vis Photodiode Array (UV-PDA) Detector: Measures absorbance at any wavelength from 190 to 900 nm, providing versatile detection options.
Light Scattering Detectors (LALS RALS): Deliver market-leading sensitivity, allowing measurement of molecular weights as low as 200 g/mol and injection masses as low as 100 ng, for highly reliable results.
Viscometer: Features automated balancing for precise intrinsic viscosity measurements, with a user-exchangeable capillary bridge to minimize maintenance.
The fully temperature-controlled design improves detector stability and overall sample characterization, ensuring optimal performance for sensitive applications.


OMNISEC Software
The OMNISEC software suite provides:
Unified instrument control, data acquisition, and analysis.
Calculations for molecular weight (Mn, Mw, Mz), polydispersity, radius of gyration (Rg), intrinsic viscosity, and Mark-Houwink parameters.
Support for automated, unattended operation to streamline workflows.


Key Advantages
Exceptional Sensitivity: Measures molecular weights down to 200 g/mol and injection masses as low as 100 ng.
Broad Wavelength UV/Vis Detection: Enables absorbance measurements across 190–900 nm.
Superior Stability: Temperature-controlled detectors ensure consistent, high-quality results.
Versatility: Ideal for polymers, polysaccharides, and proteins, with multi-detection SEC offering unmatched characterization detail.
Integrated Design: Reduced inter-detector volume improves peak resolution and data quality.
Accurate Viscosity Measurement: With automated viscometer balancing, ensuring reproducibility.