Products
SHBC provides colored microspheres, fluorescent microspheres, magnetic beads, silica microspheres, chromatography packing microspheres and biological reagents for diagnostic assay development, nucleic acid extraction, protein purification and separation applications.
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SPS20-10
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SHBC
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5%
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20nm
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10ml,20ml,50ml ,500ml,1000ml
20nm Standard Polystyrene Microspheres SPS20-10
SHBC SPS20-10 are uniform 20nm polystyrene nanoparticles supplied as a 5% solids aqueous suspension.
These standard polystyrene microspheres are designed for nanoparticle measurement research, instrument performance verification, microscopy studies, method development and colloidal material applications.
Product Specifications
Item | Specification |
|---|---|
Product Name | Standard Polystyrene Microspheres |
Catalog Number | SPS20-10 |
Brand | SHBC |
Nominal Particle Size | 20nm |
Solids Content | 5% |
Material | Polystyrene |
Surface Type | Non-functionalized |
Product Form | Aqueous Suspension |
Manufacturer | Shanghai SanYu Biotechnology Co., Ltd. |
Key Product Advantages
Uniform nominal 20nm particle size
High 5% solids content
Stable aqueous suspension
Suitable for nanoparticle measurement research
Compatible with multiple characterization methods
Useful for instrument performance verification
Research samples and bulk quantities available
Custom concentration and packaging supported
Why Choose 20nm Polystyrene Microspheres?
The 20nm particle size is suitable for studying nanoscale measurement performance near the lower detection range of many particle-analysis methods.
The 5% solids suspension provides flexibility for dilution, method optimization and repeated laboratory testing.
Main Applications
Particle Size Analyzer Performance Verification
SPS20-10 can be evaluated for checking the performance and repeatability of nanoparticle-sizing systems.
Potential uses include:
System suitability testing
Measurement repeatability studies
Method comparison
Laboratory quality control
Sample preparation optimization
Lower-size-range performance evaluation
The product should not be described as a certified or traceable calibration standard unless supported by the applicable batch documentation.
Dynamic Light Scattering Research
The microspheres can be used for DLS method development and performance verification.
Users should optimize:
Particle concentration
Dilution ratio
Dispersing medium
Measurement temperature
Refractive-index settings
Viscosity settings
Measurement duration
Electron Microscopy
The 20nm particles can be evaluated for:
Transmission electron microscopy
Scanning electron microscopy
Nanoparticle imaging
Image-analysis method development
Magnification and scale evaluation
Suitable sample preparation is required to reduce aggregation and drying artifacts.
Atomic Force Microscopy
SPS20-10 may be used in AFM research involving nanoscale particle imaging, surface measurement and instrument response evaluation.
Nanoparticle Tracking and Characterization
The particles can support research involving nanoparticle distribution, aggregation, dispersion stability and measurement-method comparison.
Instrument suitability should be confirmed because 20nm particles may be close to the lower detection limit of some systems.
Filtration and Membrane Research
The microspheres can be evaluated for:
Nanofiltration studies
Membrane retention testing
Pore-performance research
Particle transport studies
Separation-method development
Colloid and Surface Research
SPS20-10 can be used in studies involving:
Colloidal stability
Particle aggregation
Surface adsorption
Polymer nanoparticle behavior
Dispersion formulation
Nanomaterial interactions
Optical and Material Research
Uniform polystyrene nanoparticles may be evaluated for optical materials, coating research, nanoparticle assemblies and polymer-composite development.
Recommended Dilution and Preparation
Mix the suspension thoroughly before sampling.
Dilute using clean filtered water or a compatible dispersing medium.
Use low-particle-background laboratory consumables.
Prepare fresh dilutions when possible.
Avoid contamination from dust and larger particles.
Select the concentration according to the measurement method.
Confirm dispersion quality before collecting data.
Serial dilution is recommended when preparing low-concentration samples.
Handling Recommendations
Mix thoroughly before use.
Avoid vigorous treatment that may introduce bubbles.
Use clean, particle-free containers.
Protect the suspension from contamination.
Do not allow the particles to dry.
Avoid freezing and repeated freeze–thaw cycles.
Follow the product label for storage conditions.
Confirm compatibility before mixing with salts, solvents or surfactants.
Quality and Batch Documentation
Available product documentation may include:
Product specification
Nominal particle size
Solids-content information
Batch identification
Storage recommendations
Safety data sheet
Particle-size test data when applicable
Certified particle diameter, uncertainty values and metrological traceability should only be claimed when specifically included in the supplied batch certificate.
Customization and Bulk Supply
SHBC supports standard polystyrene microspheres for laboratory research, method development and industrial projects.
Customization options include:
Different particle sizes
Solids-content adjustment
Suspension-buffer adjustment
Surface functionalization
Custom packaging
Pilot-scale supply
Bulk manufacturing
OEM and ODM production
Why Choose SHBC?
Shanghai SanYu Biotechnology Co., Ltd. manufactures functional and non-functional microspheres for particle analysis, diagnostics, optical materials and scientific research.
SHBC provides:
Controlled particle-size production
Stable suspension formulation
Batch quality control
Flexible solids concentrations
Research samples
Custom packaging
Technical application support
Reliable bulk supply
Frequently Asked Questions
What is SPS20-10?
SPS20-10 is a 20nm standard polystyrene microsphere suspension with 5% solids content.
Is SPS20-10 a certified reference material?
The product should only be considered certified or traceable when the relevant certification and uncertainty information are included in the supplied batch documents.
Can it be used with a particle size analyzer?
Yes. It can be evaluated for instrument performance verification, repeatability testing and particle-sizing method development.
Can it be used for DLS calibration?
DLS is generally a first-principles sizing technique. SPS20-10 is better described as a material for performance verification, system suitability testing and method comparison unless a specific calibration procedure requires otherwise.
Is it suitable for electron microscopy?
Yes. The 20nm particles can be evaluated for TEM and SEM imaging after suitable sample preparation.
Can it be used with AFM?
Yes. It may be used for nanoscale particle imaging and AFM method-development research.
Why is the solids content 5%?
The 5% suspension provides sufficient material for dilution studies, repeated testing, formulation research and batch applications.
Does the suspension require dilution?
Most analytical applications require dilution. The optimal concentration depends on the instrument, measurement method and sample cell.
Can SHBC provide different particle sizes?
Yes. SHBC can provide standard polystyrene microspheres in different nanoscale and microscale particle sizes.
Is bulk production available?
Yes. Research samples, pilot quantities and bulk manufacturing are available.
Ordering Information
Product Name: 20nm Standard Polystyrene Microspheres
Catalog Number: SPS20-10
Nominal Particle Size: 20nm
Solids Content: 5%
Material: Polystyrene
Surface Type: Non-functionalized
Brand: SHBC
Manufacturer: Shanghai SanYu Biotechnology Co., Ltd.
Contact SHBC for samples, technical documents, customized concentrations and bulk production quotations.
For research and manufacturing use. Product suitability should be validated for the final measurement method and application.