20um Standard Polystyrene Microspheres SPS20UM-10 5%

20um Standard Polystyrene Microspheres SPS20UM-10

SHBC SPS20UM-10 Standard Polystyrene Microspheres are spherical plain polystyrene particles with a nominal diameter of 20 μm and a solid content of 5%.

They are suitable for particle analysis, microscopy, particle counting, filtration studies, microfluidic testing and adsorption research.

Product Overview

SPS20UM-10 provides a controlled 20 micron particle platform for laboratory research, analytical development and industrial testing.

The particles offer convenient microscopic visibility and regular spherical morphology. The concentrated 5% solids suspension supports flexible dilution, repeated testing and bulk projects.

Technical Specifications

Actual mean diameter and particle-size distribution are lot-specific. Refer to the applicable Certificate of Analysis.

Key Advantages

• Nominal particle diameter of 20 μm

• Regular spherical morphology

• Concentrated 5% solids suspension

• Convenient optical observation

• Easy dilution and sample preparation

• Suitable for particle-counting studies

• Plain surface for adsorption research

• Flexible packaging volumes

• Pilot and bulk production

• OEM customization available

Applications of 20um Polystyrene Microspheres

Particle Size Analysis

SPS20UM-10 can be used as a model particle for particle-size measurement, method development and comparative analysis.

Particle Counter Evaluation

The controlled 20 μm diameter supports particle-detection studies, counting-method development and instrument-response testing.

Optical Microscopy

The particles are readily visible under suitable optical microscopy conditions, supporting particle tracking and morphology observation.

Electron Microscopy

SPS20UM-10 can support SEM sample preparation, surface imaging and microsphere morphology studies.

Microfluidic and Flow Research

The particles are suitable for channel testing, flow visualization, particle transport and separation-method development.

Filtration and Membrane Testing

SPS20UM-10 can be used in filter-retention, membrane-efficiency, particle-recovery and challenge-testing research.

Physical Protein Adsorption

The plain polystyrene surface can be evaluated for passive adsorption of proteins, antibodies, antigens and other biomolecules.

Sedimentation Studies

The controlled particle size supports research involving settling behavior, suspension stability, particle recovery and aggregation.

Microplastic Research

SPS20UM-10 may be evaluated as a defined polymer particle model in environmental transport, ingestion and analytical-method studies.

Why Choose 20um Polystyrene Microspheres?

The 20 μm diameter provides easy microscopic observation and controlled particle geometry.

Typical research areas include:

• Particle characterization

• Particle counting

• Optical imaging

• Microfluidic testing

• Filter evaluation

• Flow-system research

• Protein adsorption

• Sedimentation studies

Standard Plain Polystyrene Surface

SPS20UM-10 has a non-functionalized polystyrene surface without intentionally added carboxyl or amino groups.

The plain hydrophobic surface is suitable for general particle research and passive biomolecule adsorption.

For controlled covalent coupling, SHBC also supplies carboxyl, amino and other functionalized microspheres.

Benefits of 5% Solid Content

SPS20UM-10 is supplied at 5% solids for flexible research and production use.

The concentrated format allows preparation of different working concentrations while reducing packaging volume and supporting repeated experiments or larger projects.

Quality and Batch Documentation

Available documentation may include:

• Batch number

• Actual mean particle diameter

• Particle-size distribution

• Solid content

• Product appearance

• Certificate of Analysis

• Safety Data Sheet

SPS20UM-10 should only be described as a certified or traceable particle-size standard when corresponding certification documents are supplied for the specific batch.

Why Choose SHBC?

Shanghai SanYu Biotechnology Co., Ltd. supplies standard and functional microspheres for scientific research, analytical development and industrial applications.

SHBC advantages include:

• Multiple particle sizes

• Standard and functional surfaces

• Laboratory sample supply

• Pilot-scale manufacturing

• Bulk production capability

• Customized solid content

• Flexible packaging

• OEM and private-label services

• Technical selection support

Customized Microsphere Supply

Customization options include:

• Particle diameter

• Solid content

• Dispersion medium

• Surface functional groups

• Fluorescent labeling

• Colored microspheres

• Packaging volume

• OEM labeling

• Bulk production

Storage and Handling

Store SPS20UM-10 according to the product label, COA and SDS.

Particles of this size may settle during storage. Gently mix the suspension until uniform before sampling.

Avoid freezing, drying, high-temperature exposure and contamination. Use clean laboratory tools to reduce aggregation and cross-contamination.

Frequently Asked Questions

What is SPS20UM-10?

SPS20UM-10 is a plain polystyrene microsphere suspension with a nominal diameter of 20 μm and a solid content of 5%.

Is 20um equal to 20 microns?

Yes. A diameter of 20 μm, 20um or 20 microns is equal to 20,000 nm.

What are 20um polystyrene microspheres used for?

Typical applications include particle analysis, microscopy, particle counting, microfluidic testing, filtration, adsorption and sedimentation research.

Can the particles be observed with an optical microscope?

Yes. The 20 μm diameter provides convenient visibility under suitable optical microscopy conditions.

Can SPS20UM-10 adsorb proteins?

The plain polystyrene surface can be evaluated for passive adsorption of proteins, antibodies and antigens.

Do the particles settle during storage?

Particles of this size may gradually settle. Redisperse the suspension thoroughly before sampling or dilution.

Can SPS20UM-10 be diluted?

Yes. The 5% suspension can be diluted to the required working concentration using a compatible dispersion medium.

Are functionalized versions available?

Yes. SHBC can provide carboxyl, amino, fluorescent, colored and other customized polystyrene microspheres.

Is SPS20UM-10 a certified calibration standard?

The product should only be described as certified or traceable when corresponding certification documents are supplied for the specific batch.

Are bulk quantities available?

Yes. SHBC supports laboratory samples, pilot projects, customized packaging and bulk production.

Request SPS20UM-10 Samples and Quotations

Contact Shanghai SanYu Biotechnology Co., Ltd. for SPS20UM-10 samples, technical specifications, customized packaging and bulk quotations.

SHBC supplies standard polystyrene microspheres for research laboratories, instrument developers, filtration companies and industrial projects.

For Research Use Only.