70nm Standard Polystyrene Microspheres SPS70-10 5%

70nm Standard Polystyrene Microspheres SPS70-10

SHBC SPS70-10 are uniform 70nm polystyrene nanoparticles supplied as a 5% solids aqueous suspension.

The particles are suitable for particle-size measurement research, instrument performance verification, microscopy, colloidal studies, membrane testing and nanomaterial development.

Product Specifications

Key Product Advantages

• Uniform nominal 70nm particle size

• High 5% solids concentration

• Spherical polystyrene nanoparticles

• Good aqueous dispersion

• Flexible dilution for different methods

• Suitable for repeated laboratory testing

• Custom concentration and packaging available

• Research samples and bulk supply supported

Why Choose 70nm Polystyrene Microspheres?

The 70nm particle size is suitable for nanoscale particle measurement and material characterization.

The 5% solids suspension provides sufficient material for:

• Serial dilution

• Repeated measurements

• Method development

• Instrument performance checks

• Dispersion studies

• Pilot-scale experiments

• Industrial research projects

Particle Size Measurement Research

SPS70-10 can be evaluated for particle-size analyzer performance verification and analytical method development.

Potential applications include:

• Dynamic light scattering

• Laser light scattering

• Nanoparticle size analysis

• Measurement repeatability testing

• System suitability evaluation

• Inter-instrument comparison

• Sample preparation optimization

Particle concentration, dispersing medium, temperature and instrument settings should be optimized for each measurement method.

Dynamic Light Scattering Applications

SPS70-10 can be used for DLS method development and routine instrument performance evaluation.

Recommended variables to optimize include:

• Sample concentration

• Dilution ratio

• Dispersing medium

• Measurement temperature

• Medium viscosity

• Refractive-index settings

• Measurement duration

• Data-analysis settings

Freshly prepared and well-dispersed samples are recommended for consistent results.

Electron Microscopy

The 70nm particles can be evaluated for:

• Transmission electron microscopy

• Scanning electron microscopy

• Nanoparticle imaging

• Particle morphology observation

• Image-analysis development

• Magnification and scale evaluation

Suitable sample preparation is required to minimize particle aggregation and drying artifacts.

Atomic Force Microscopy

SPS70-10 may be used for:

• Nanoscale particle imaging

• Surface-height measurement

• Particle deposition studies

• Probe-response evaluation

• AFM method development

The substrate, particle concentration and deposition method should be optimized before measurement.

Colloid and Dispersion Research

SPS70-10 can be used as a model polymer nanoparticle in liquid-system research.

Potential applications include:

• Colloidal stability

• Particle aggregation

• Surfactant evaluation

• Salt-effect studies

• Surface adsorption

• Dispersion formulation

• Particle–particle interactions

• Particle–surface interactions

Filtration and Membrane Research

The 70nm microspheres can be evaluated for:

• Nanofiltration studies

• Membrane retention testing

• Particle transport research

• Pore-performance evaluation

• Filter-material development

• Separation-method research

Particle recovery and detection methods should be selected according to the experimental system.

Nanomaterial Research

Uniform 70nm polystyrene particles are suitable for:

• Polymer nanocomposites

• Nanoparticle assemblies

• Coating development

• Optical material research

• Surface modification studies

• Environmental particle research

• Model nanoparticle systems

Recommended Sample Preparation

1. Mix the original suspension thoroughly.

2. Dilute with filtered water or a compatible dispersing medium.

3. Prepare low concentrations by serial dilution.

4. Use clean, low-particle-background containers.

5. Avoid contamination from dust and larger particles.

6. Confirm particle dispersion before measurement.

7. Prepare fresh diluted samples when possible.

Handling Recommendations

• Mix thoroughly before sampling.

• Avoid vigorous shaking that introduces bubbles.

• Protect the suspension from contamination.

• Do not allow the particles to dry.

• Avoid freezing and repeated freeze–thaw cycles.

• Use clean laboratory consumables.

• Verify compatibility before adding salts or solvents.

• Follow the product label for storage conditions.

Quality and Batch Documentation

Available documentation may include:

• Product specification

• Nominal particle size

• Solids-content information

• Batch identification

• Particle-size test data when applicable

• Storage recommendations

• Safety Data Sheet

Certified diameter, measurement uncertainty and metrological traceability should only be claimed when specifically included in the supplied batch documents.

Customization and Bulk Supply

SHBC supports standard polystyrene microspheres for laboratory research, analytical method development and industrial projects.

Customization options include:

• Different particle sizes

• Solids-content adjustment

• Suspension-medium adjustment

• Surface functionalization

• Custom packaging

• Research samples

• Pilot-scale supply

• Bulk manufacturing

• OEM and ODM cooperation

Why Choose SHBC?

Shanghai SanYu Biotechnology Co., Ltd. manufactures standard and functional microspheres for particle analysis, diagnostic research, optical materials and industrial applications.

SHBC provides:

• Controlled particle-size production

• Stable suspension formulation

• Batch quality control

• Flexible solids concentrations

• Custom packaging

• Technical application support

• Research samples

• Reliable bulk supply

Frequently Asked Questions

What is SPS70-10?

SPS70-10 is a 70nm standard polystyrene microsphere suspension with 5% solids content.

Is 70nm equal to 0.07µm?

Yes. A particle diameter of 70nm is equal to 0.07µm.

Can SPS70-10 be used for DLS?

Yes. It can be evaluated for DLS method development, repeatability testing and instrument performance verification.

Is SPS70-10 a certified reference material?

It should only be described as certified or traceable when certification, measurement uncertainty and traceability information are included in the supplied batch documents.

Can it be used for TEM or SEM?

Yes. The particles can be evaluated by electron microscopy after suitable sample preparation.

Can it be used for AFM?

Yes. SPS70-10 may be evaluated for nanoscale imaging and AFM method development.

Does SPS70-10 require dilution?

Most analytical applications require dilution. The optimal concentration depends on the instrument and measurement method.

Why choose a 5% solids suspension?

The 5% concentration provides flexibility for serial dilution, repeated testing, formulation research and larger-scale projects.

Can SHBC provide other particle sizes?

Yes. SHBC supplies standard polystyrene microspheres in multiple nanoscale and microscale particle sizes.

Is bulk production available?

Yes. SHBC supports research samples, customized packaging, pilot quantities and bulk manufacturing.

Ordering Information

Product Name: 70nm Standard Polystyrene Microspheres
Catalog Number: SPS70-10
Nominal Particle Size: 70nm
Equivalent Particle Size: 0.07µm
Solids Content: 5%
Material: Polystyrene
Surface Type: Standard, 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.