VASCO Particle Size Analyzer
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
* Sample dependent
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 Sparse Bayesian Learning and Padé Laplace algorithms
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
- NanoQ proprietary software
- Compliant with ISO 13 321 – Particle size analysis – Photon correlation Spectroscopy & ISO 22 412 – Particle size analysis – Dynamic Light Scattering
VASCO Particle Size Analyzer
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 Sparse Bayesian Learning and 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 few clicks
Three analysis algorithms
- Standard Cumulants algorithm: monodisperse sample measurement (average size and PDI)
- Advanced Sparse Bayesian Learning (SBL) algorithm: complex / polymodal samples analysis
- 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, SBL 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.
VASCO Particle Size Analyzer
Description | VASCO – 2 (ended sale in 2018) | VASCO – 3 | |
Particle size range (nm) | 0.5nm to 10μm | 0.5nm to 10μm | |
Sample concentration range (% vol) | 0.001% to 40% | 0.0003% to 40% | |
Photon counting unit | PM (Photomultiplier) | APD (Avalanche photodiode) | |
Sample setting temperature | +15 to +70°C | +10 to +70°C | |
Laser diode characteristics | 658 nm/75mW | 658 nm/75mW | |
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Options | |||
Laser diode 532 nm | O | O | |
Fluorescence filter | O | O | |
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General characteristics | |||
Reproductibility/repetability | Better than 5% | ||
Analysis software | NanoQ performs multi-acquisitions, size distribution simulation, kinetic size of aggregation monitoring, features Cumulants, Contin, Sparse Bayesian Learning (SBL) and Padé-Laplace inversion algorithms | ||
Measurement time (typ.) | 30 sec to 5 min depending on sample and measurement settings | ||
Sample volume | min=50µL and max=5mL | ||
Operating temperature | +15 to 30°C | ||
Warm up time (cold start) | < 5 min | ||
Suspending fluid | Aqueous and organic solvents | ||
Dimensions (HxWxD) | 30.4 x 33.2 x 27.9 cm | ||
Weight | < 12kg | ||
Power supply | 110/220 V | ||
Power consumption | < 50W | ||
Laser safety classification | Class 1 | ||
Instrument configuration | Bench top | ||
Operating system | Windows 2000, 2007,2010 | ||
Normalisation | CE marked product, CFR 21 part 11, ISO 13321 compliant | ||
Computer configuration | Pentium III or equivalent, RAM 512 Mo | ||
Computer interface | USB 2 |