The data is typically plotted as extinction as a function of wavelength. These measurements are compared at each wavelength to quantify the sample’s wavelength dependent extinction spectrum. In its simplest form, a sample is placed between a light source and a photodetector, and the intensity of a beam of UV/visible light is measured before and after passing through the sample. UV/Visible spectroscopy is a technique used to quantify the light that is absorbed and scattered by a sample (a quantity known as the extinction, which is defined as the sum of absorbed and scattered light). Spectroscopic Analysis (UV-Visible Spectroscopy) Matrix-assisted Laser Desorption/Ionization Mass Spectrometry (MALDI-MS).Scanning Mobility Particle Sizer (SMPS).Inductively Coupled Plasma Mass Spectrometry (ICP-MS).Spectroscopic Analysis (UV-Visible Spectroscopy).Last Call (discontinued & one-off products).
#Malvern zetasizer add refractive index software
This workflow based software enables greater efficiency from system control to analysis. The new OMNISEC v10 supports the power of advanced detection, reduces workloads and improves productivity.
A self-balancing viscometer with user exchangeable capillaries provides simple automatic setup and improves robustness.
Integrated design keeps all detectors and columns in one comparment which means tubing is minimised leading to reduced band broadening and improved baseline stability. The unique light scattering detector enables measurments of molecular weights as low as 200Da, injection masses as low as 100ng of material and samples with low dn/dc. Unmatched multi detector system provides superior GPC/SEC data quality. Properties such as hydrodynamic radius (Rh), radius of gyration (Rg) and Mark Houwink parameters can quickly be determined by combining the results from each of the four detectors (UV-Vis, RI, Viscometer and Light scattering) delivering a complete set of data for each sample.
Greater understanding through multidetection Measure concentration, absolute molecualr weight,polydispersity, molecular size, structure, dn/dc, and more …
#Malvern zetasizer add refractive index upgrade
Users can also easily upgrade existing GPC/SEC systems to more advanced setups. The complete multidetector OMNISEC system provides advanced GPC/SEC analysis for the characterisation of proteins, polymers and polysaccharides. With just 1-click from data to results, the user can quickly overlay multiple injections and present data in simple and customised reports. The software reduces training requirements for new users by guiding the user through setup, data acquisition and analysis in an intuitive workflow. OMNISEC software v10 has been designed to make SEC/GPC analysis as easy as possible. The superior sensitivity of the light scattering detector makes it ideal for measuring low volume samples with low dn/dc, while the 18µl flow cell minimises band broadening. It includes refractive index (RI), UV/Vis absorbance, light scattering and intrinsic viscosity detectors. OMNISEC Reveal is the most advanced integrated multi detector platform for superior GPC/SEC analysis. The efficient degasser, low pulsation pump, large column oven and temperature controlled autosampler (4-60☌) with zero injection volume overheads combine to give reduced baseline noise and improved stability to maximise sensitivity and accuracy. OMNISEC Resolve has been designed using more than 30 years of experience in GPC/SEC to achieve the highest possible standard in performance. The complete integrated OMNISEC solution is made up of 3 components: OMNISEC Resolve, OMNISEC Reveal and OMNISEC software. Alternatively, it forms part of a complete OMNISEC GPC/SEC system. The system is available as a detector-only option, which can be connected to any third party GPC/SEC system. It combines refractive index,UV/Vis absorbance, light scattering and viscometer detectors to measure concentration, molecular weight and intrinsic viscosity with unparalleled sensitivity and accuracy. It is a complete solution for the molecular characterisation of synthetic polymers, natural polymers and polysaccharides, and proteins. Malvern OMNISEC is the top-of- the-range multi-detector gel-permeation/size- exclusion chromatography (GPC/SEC) system.
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