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Colloids and nanoparticles

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Overview

Colloids and nanoparticles in soils
The analysis of natural colloids and engineered nanoparticles in environmental samples is a challenging application where the Postnova FFF Platform concept can deliver its full benefits.

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Separation, characterization and fractionation of nearly any macromolecules or nanoparticles
The Postnova modular FFF platform can be configured for any single or combination of several of the five FFF subtechniques - Asymmetric Flow FFF (AF4), Hollow-Fibre Flow FFF (HF5), Electrical FFF (EAF4), Centrifugal FFF CF3) and Thermal FFF (TF3). Because of this flexibility, it can be used for the separation, characterization and fractionation of nearly any macromolecules or nanoparticles. The Postnova platform can be also configurated for Size Exclusion Chromatography (SEC or GPC). You can easily switch from FFF to SEC and vice versa. The NovaFFF software takes care of control, data acquisition and calculation.

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Postnova AF2000 MT mid temperature MultiFlow FFF system
The system can be configured for Asymmetric Flow Field-Flow Factionation (AF4), Hollow Fiber Flow Field-Flow Factionation (HF5) and Size Exclusion Chromatography (SEC).

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Postnova CF2000 Centrifugal FFF system
The system can separate and distinguish relative size differences of 5% only and can be used to monitor absolute size differences down to 1 nm. These unique features make it the ideal choice for any nanoparticle research and QC tasks.

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Postnova 21-angle MALS detector - the ideal detector for ultra-high molar mass
The Postnova 21-angle MALS detector has been especially developed for coupling with FFF systems – to the opposite of previously available MALS detectors which were designed with chromatography (SEC/GPC) in mind, that is for smaller molar mass.

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High sensitivity online Dynamic Light Scattering detector, special customized for use connected to FFF
Online DLS measurements using a special flow cell can be perfomed to obtain particle size (Rh) and molecular weight (Mw) distributions of particles and molecules separated by Postnova Asymmetric Flow FFF (AF4), Centrifugal FFF (CF3) and Thermal FFF (TF3) systems.

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Postnova FFF Analysis software
By using the FFF theory of Prof. Calvin Giddings, the Postnova FFF Analysis software makes it possible to calculate size distributions directly from the retention times. 

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Literature

Separation, characterization and fractionation of nearly any macromolecules or nanoparticles
The Postnova modular FFF platform can be configured for any single or combination of several of the five FFF subtechniques - Asymmetric Flow FFF (AF4), Hollow-Fibre Flow FFF (HF5), Electrical FFF (EAF4), Centrifugal FFF CF3) and Thermal FFF (TF3). Because of this flexibility, it can be used for the separation, characterization and fractionation of nearly any macromolecules or nanoparticles. The Postnova platform can be also configurated for Size Exclusion Chromatography (SEC or GPC). You can easily switch from FFF to SEC and vice versa. The NovaFFF software takes care of control, data acquisition and calculation.

Readmore >>
PDF icon Download Brochure, Postnova mid temperature Asymmetric Flow Field-Flow Fractionation AF2000 MultiFlow system.pdf (136.27 KB)
AF2000 MT MultiFlow mid temperature FFF system
Date of creation: 
24 July 2017
Library code: 
10163
PDF icon Download Brochure, Postnova ambient temperature Asymmetric Flow Field-Flow Fractionation AF2000 AT system.pdf (140.27 KB)
AF2000 AT MultiFlow ambient temperature FFF system
Date of creation: 
29 September 2015
Library code: 
10159
PDF icon Download Brochure, Postnova Centrifugal Field-Flow Fractionation CF2000 system.pdf (206.11 KB)
High resolution nanoparticles separator
Date of creation: 
1 October 2015
Library code: 
10164
PDF icon Download Brochure, Postnova model 3621 Multi-Angle Light Scattering (MALS) detector.pdf (153.88 KB)
Multi-Angle Light Scattering detector (MALS) model 3621
Date of creation: 
27 July 2017
Library code: 
10220
PDF icon Download Brochure, Postnova Dynamic Light Scattering detector DL3000 Zetasizer S173.pdf (81.82 KB)
Dynamic Light Scattering detector model Zetasizer Nano ZS173
Date of creation: 
1 October 2015
Library code: 
10221
PDF icon Download Brochure, Postnova FFF Analysis software.pdf (85.76 KB)
Postnova FFF Analysis software
Date of creation: 
31 January 2016
Library code: 
10638