VASCO Nano Particle Size Analyser (DLS)

The VASCOTM nanoparticle size analyzer is a unique instrument for nanoparticle suspension and colloidal characterization, based on the Dynamic Light Scattering (DLS) .

Key benefits:

• High detection efficiency in opaque/dark media, as well as in diluted solution thanks to a DTC patented system
• Extended sample concentration range (up to 40%*)
• Reduce sample preparation (no filtration or dilution)
• Polymodal and complex sample analysis
• No consumable
• Solvent-proof sample cell

* Depends on sample and VASCO model

Technologies & innovations

VASCO combines :

• Unique embedded sample cell made of a silica prism and backscattered light detection
• Dual Thickness Controller (DTC) : patented system allowing measurement of diluted sample as well as dark / concentrated ones, without dilution
• Flusher to remove dust and bubbles
• Advanced Padé Laplace algorithm

Main characteristics

• Based on Dynamic Light Scattering (DLS)
• Particle size (diameter) : 0,5 nm – 10 μm
• Sample concentration : 0.1ppm – 40%w/v *
• Optical filter option to improve measurements on fluorescent samples
• On-line sample cell option → size kinetics study
• NanoQ proprietary software
• Compliant with ISO 13 321 – Particle size analysis – Photon correlation Spectroscopy & ISO 22 412 – Particle size analysis – Dynamic Light Scattering

NanoQ

A software fully-dedicated to nanoparticle size measurements for the VASCO series featuring :

• User-friendly and intuitive GUI
• User-defined Standard Operation Procedures (SOPs)
• Measurement replay mode for post-data treatment
• Exhaustive solvent database
• Standard Cumulant and unique Padé Laplace algorithms for complex colloids analysis
• Unique indebted simulator for measurement interpretation and pedagogic purpose
• Report editor for results presentation and saving
• User management database

NanoQ is designed to guide the user in a very simple and intuitive way, through the different steps of a measurement. Its access menu allows to select in one click an operating mode :

• Measurement
• Simulation
• Import data/replay
• User Management

NanoQ control interface

• All information (Sample, Device, SOP, Measurements, etc.) accessible on the same panel
• No tedious cascaded menus or scrolling bars
• Measurements started and analyzed with a few clicks

Two analysis algorithms

• Standard Cumulants algorithm monodisperse sample measurement (average size and PDI)
• Advanced Padé Laplace algorithm complex / polymodal samples analysis

Two acquisition modes

Continuous mode, which allows to :

• Integrate correlated signal for an undefined time period
• Stop measurement and make analysis at your convenience
• Grab correlogram at any time and make preliminary analysis without stopping the measurement

Statistical mode:

• User settable multi-acquisition measurements
• Use of Padé Laplace algorithm
• Dedicated to size kinetics monitoring or to complex sample size distribution analysis

The Analysis page

A complete view on the results :

• Size distribution and histograms from the Cumulants and Padé Laplace algorithm analysis
• Display of measured correlograms with their fit and residues
• Step-by-step results display and sorting
• High accuracy analysis

Statistical mode :

• User settable multi-acquisition measurements
• Use of Padé Laplace algorithm
• Dedicated to size kinetics monitoring or to complex sample size distribution analysis

A unique indebted simulator

• Create virtual measurement sequences with user defined size distribution
• Visualize easily impact of samples characteristics (viscosity, RI, temperature,) device settings and noise level on results analysis
• Interpret measurement results for complex sample analysis

Solvent Database

More than 200 referenced solvents

Refractive index and viscosity data vs. temperature

It allows you to :

• Import your selected solvent properties in just one click
• Create and add your own solvent to the data base
• Define its characteristics vs. temperature with various predefined interpolation models
• NanoQ integrates many other advanced functionalities (customizable report edition, measurement replay mode, advanced analysis high accuracy mode, ) that we invite you to discover on our video. For more information, please contact us.