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OmniSEC software is at the heart of all Viscotek systems, providing an integrated solution that helps you maximize the information and efficiency of your experiments. Simply load your samples and the software controls all the sequencing, enabling truly automatic unattended operation.


OmniSEC contains many convenient and productive features, and supports the following:

  • Multi detection (Single/Dual/Triple/Tetra).
  • Absolute molecular weight.
  • Protein analysis.
  • Molecular conformation/branching.
  • Copolymer analysis.
  • Mark-Howink Plots.
  • Flow Injection Polymer Analysis (FIPA).
  • Universal calibration.
  • Conventional calibration.

Key Benefits:

  • Two clicks from raw data to results.
  • Built-in, intuitive report designer.
  • Manual or fully automatic baseline setting.
  • Automatic determination of dn/dc, UV extinction coefficient and A2.
  • Proven asymmetric band broadening corrections.
  • Fully automatic process control/LIMS mode.
  • Integrated help system to guide users.
  • Full export capability of raw data, results and intermediate calculations.
  • Enables compliance with 21 CFR part 11.

How it works

OmniSEC gives direct control of any Viscotek instrument, as well as the ability to acquire and display results in real time.

After installing the software on a suitable PC, a serial cable is used to connect the computer to any Viscotek instrument. OmniSEC then performs an automatic search to detect any connected devices (such as the TDA 305 or GPCmax) and select appropriate COM ports.

After completion of this process, the user is able to control the instruments, change detector settings and set up new or existing analysis methods. At the end of the run, data can be analyzed and reports automatically generated.



Complete GPC/SEC system including Conventional, Universal, Light Scattering, Triple, Copolymer, Protein specific, and FIPA calculation modules

Output of Mn, Mw, Mz, Mp, Mw/Mn, IV [η], Rh, Rg, Branching Number, Branching Frequency , Weight Fraction, Concentration, MH-a, MH-k, dn/dc, dA/dc. A2

Data acquisition rate:
6 channels, 5Hz, unlimited acquisition time
Calculation modules:
M<sub>n</sub>, M<sub>w</sub>, M<sub>z</sub>, M<sub>p</sub>, M<sub>w</sub>/M<sub>n</sub>, IV [η], R<sub>h</sub>, R<sub>g</sub>, Branching Number, Branching Frequency, Number of Arms, Weight Fraction, Concentration, MH-a, MH-k, dn/dc, dA/dc. A<sub>2</sub>
Results output:

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Viscotek 350 HT-GPC user manual (English) User Manual (English)

User manual for the Viscotek 350 HT-GPC used with Gel Permeation Chromatography/Size Exclusion Chromatography (GPC/SEC) systems

Keywords: English User Manual Viscotek systems Viscotek HT-GPC Viscotek detectors 

PEGylated proteins: Optimizing conjugation reactions using triple detection SEC Application Note (English)

In this application note, interferon α-5 was conjugated with two different PEG molecules in different reactions. The individual protein and PEG molecules, as well as the PEGylated conjugates are characterized by SEC and their composition, mol...

Keywords: English Application Note Molecular size Molecular weight Static Light Scattering Size Exclusion Chromatography Protein aggregation Proteins Biological drug characterization and development Viscotek TDAmax Viscotek SEC-MALS Viscotek UV-PDA Detector (2600) 

Viscotek Inert-Columns user manual (English) User Manual (English)

User manual for Viscotek Inert-Columns for use with Organic GPC/SEC applications

Keywords: English User Manual Viscotek systems Viscotek detectors 

Viscotek PLS-Columns user manual (English) User Manual (English)

User manual for Viscotek PLS-Columns for use with Protein GPC/SEC applications

Keywords: English User Manual Viscotek systems Viscotek detectors 

Seal Wash Systems for GPCmax and VE-1122 Pumps – set up and operation Technical Note (English)

This technical note describes the two different ways of operating the seal wash system in the Viscotek GPCmax and VE-1122 pumps, which are essential for maximising the lifetime of seals and pistons.

Keywords: English Technical Note Gel Permeation Chromatography Size Exclusion Chromatography Viscotek 270max Viscotek RImax Viscotek TDAmax 
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