25um Standard Polystyrene Microspheres SPS25UM-10 5%

25um Standard Polystyrene Microspheres SPS25UM-10

SHBC SPS25UM-10 Standard Polystyrene Microspheres are spherical polystyrene particles with a nominal diameter of 25 μm and a solid content of 5%.

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

Product Overview

SPS25UM-10 provides a controlled 25 micron particle platform for laboratory research, analytical method development and industrial testing.

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

Technical Specifications

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

Key Advantages

• Nominal particle diameter of 25 μm

• Regular spherical morphology

• Controlled microscale particle size

• Concentrated 5% solids suspension

• Easy optical observation

• Convenient dilution and handling

• Suitable for particle-counting studies

• Flexible packaging volumes

• Pilot and bulk production

• OEM customization available

Applications of 25um Polystyrene Microspheres

Particle Size Analysis

SPS25UM-10 can be used as a model particle for particle-size measurement, comparative analysis and analytical method development.

Particle Counter Evaluation

The controlled 25 μm diameter supports particle-detection studies, counting-method development and instrument-response evaluation.

Optical Microscopy

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

Electron Microscopy

SPS25UM-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

SPS25UM-10 can be evaluated in filter-retention, membrane-efficiency, particle-recovery and challenge-testing studies.

Sedimentation Research

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

Physical Adsorption Studies

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

Microplastic Method Development

SPS25UM-10 can be evaluated as a defined polymer particle model for environmental sampling, recovery and analytical-method research.

Why Choose 25um Polystyrene Microspheres?

The 25 μm diameter combines convenient microscopic observation with controlled particle geometry.

Typical research areas include:

• Particle characterization

• Particle counting

• Optical imaging

• Microfluidic testing

• Filter evaluation

• Flow-system research

• Adsorption studies

• Sedimentation analysis

Standard Polystyrene Surface

SPS25UM-10 is supplied with a standard polystyrene surface.

The surface is suitable for general particle research and may be evaluated for passive biomolecule adsorption. For controlled covalent coupling, SHBC also supplies carboxyl, amino and other functionalized microspheres.

Benefits of 5% Solid Content

SPS25UM-10 is supplied at 5% solids for flexible research and production use.

The concentrated format allows users to prepare different working concentrations while reducing packaging volume. It also supports repeated testing, pilot projects and larger-volume requirements.

Quality and Batch Documentation

Available product documentation may include:

• Product code and batch number

• Actual mean particle diameter

• Particle-size distribution

• Solid content

• Product appearance

• Certificate of Analysis

• Safety Data Sheet

SPS25UM-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. manufactures standard and functional microspheres for research, analytical development and industrial applications.

SHBC supply advantages include:

• Multiple particle sizes available

• Standard and functional surfaces

• Laboratory sample supply

• Pilot-scale manufacturing

• Bulk production capability

• Customized solid content

• Flexible packaging volumes

• OEM and private-label services

• Technical product-selection support

Customized Microsphere Supply

Customization options include:

• Customized particle diameter

• Customized solid content

• Customized dispersion medium

• Carboxyl surface modification

• Amino surface modification

• Fluorescent labeling

• Colored microspheres

• Customized packaging volume

• OEM labeling

• Bulk production

Storage and Handling

Store SPS25UM-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 or dilution.

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

Frequently Asked Questions

What is SPS25UM-10?

SPS25UM-10 is a standard polystyrene microsphere suspension with a nominal diameter of 25 μm and a solid content of 5%.

Is 25um equal to 25 microns?

Yes. A diameter of 25 μm, 25um or 25 microns is equal to 25,000 nm.

What are 25um polystyrene microspheres used for?

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

Can SPS25UM-10 be observed with an optical microscope?

Yes. The 25 μm particle diameter provides convenient visibility under suitable optical microscopy conditions.

Do 25um microspheres settle during storage?

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

Can the microspheres adsorb proteins?

The polystyrene surface may be evaluated for passive adsorption of proteins, antibodies and antigens through non-covalent interactions.

Can SPS25UM-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 supply carboxyl, amino, fluorescent, colored and other customized polystyrene microspheres.

Is SPS25UM-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 SPS25UM-10 Samples and Quotations

Contact Shanghai SanYu Biotechnology Co., Ltd. for SPS25UM-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.