35um Standard Polystyrene Microspheres SPS35UM-10 5%

35um Standard Polystyrene Microspheres SPS35UM-10

SHBC SPS35UM-10 Standard Polystyrene Microspheres are spherical polymer particles with a nominal diameter of 35 μm and a solid content of 5%.

They are designed for particle analysis, microscopy, particle counting, filtration testing, microfluidic research and sedimentation studies.

Product Overview

SPS35UM-10 provides a controlled 35 micron particle platform for research, analytical method development and industrial testing.

The particles offer convenient optical visibility and regular spherical morphology. The 5% solids suspension supports direct sampling, flexible dilution and bulk research 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 35 μm

• Regular spherical morphology

• Concentrated 5% solids

• Easy optical observation

• Convenient dilution and sampling

• Suitable for particle-counting research

• Suitable for filtration studies

• Flexible packaging volumes

• Bulk production available

• Customized specifications supported

Applications of 35um Polystyrene Microspheres

Particle Size Analysis

SPS35UM-10 can be used as a defined model particle for particle-size measurement, comparative testing and analytical method development.

Particle Counter Evaluation

The controlled 35 μm diameter supports particle-detection studies, counting-method development and instrument-response evaluation.

Optical Microscopy

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

Electron Microscopy

SPS35UM-10 can support SEM sample preparation, surface imaging and particle morphology studies.

Filtration and Membrane Testing

The microspheres can be evaluated in filter-retention, membrane-efficiency, particle-recovery and challenge-testing research.

Microfluidic and Flow Research

SPS35UM-10 is suitable for channel testing, flow visualization, particle transport, pump evaluation and separation studies.

Sedimentation Studies

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

Microplastic Research

The microspheres may be used as a defined polystyrene particle model for environmental sampling, transport, recovery and analytical-method studies.

Surface Interaction Studies

The standard polystyrene surface can be evaluated for particle–molecule interaction and physical adsorption research.

Why Choose 35um Polystyrene Microspheres?

The 35 μm diameter combines easy microscopic observation with controlled particle geometry.

Typical research areas include:

• Particle characterization

• Particle counting

• Optical imaging

• Filtration testing

• Flow-system evaluation

• Microfluidic transport

• Sedimentation analysis

• Microplastic method development

Benefits of 5% Solid Content

SPS35UM-10 is supplied at 5% solids for flexible laboratory and production use.

The concentrated suspension can be diluted to different working concentrations and supports repeated experiments, pilot projects and larger-volume requirements.

Compared with dry particles, the suspension format reduces weighing steps and simplifies particle preparation.

Standard Polystyrene Surface

SPS35UM-10 is supplied with a standard polystyrene surface without intentionally added carboxyl or amino groups.

It is suitable for general particle research and physical surface-interaction studies.

For specialized applications, SHBC also supplies carboxyl, amino, fluorescent and colored polystyrene microspheres.

Standard Microspheres or Certified Size Standards?

SPS35UM-10 is positioned as a standard polystyrene microsphere for research and method development.

It should only be described as certified, calibrated or traceable when corresponding documentation is supplied for the specific product and batch.

Customers requiring certified particle-size standards should confirm:

• Actual mean diameter

• Particle-size tolerance

• Standard deviation

• Coefficient of variation

• Measurement method

• Traceability documentation

Quality and Batch Documentation

Available product documentation may include:

• Product code

• Batch number

• Actual mean particle diameter

• Particle-size distribution

• Solid content

• Product appearance

• Certificate of Analysis

• Safety Data Sheet

Why Choose SHBC?

Shanghai SanYu Biotechnology Co., Ltd. supplies standard and functional microspheres for 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 product-selection support

Customized Microsphere Supply

Customization options include:

• Particle diameter

• Solid content

• Dispersion medium

• Surface functionalization

• Fluorescent labeling

• Colored microspheres

• Packaging volume

• OEM labeling

• Bulk production

Storage and Handling

Store SPS35UM-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, excessive heat and contamination. Do not collect product only from the upper layer of a settled suspension.

Frequently Asked Questions

What is SPS35UM-10?

SPS35UM-10 is a standard polystyrene microsphere suspension with a nominal diameter of 35 μm and a solid content of 5%.

Is 35um equal to 35 microns?

Yes. A diameter of 35 μm, 35um or 35 microns is equal to 35,000 nm.

What are 35um polystyrene microspheres used for?

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

Can the particles be observed with an optical microscope?

Yes. The 35 μm diameter provides convenient visibility under suitable optical microscopy conditions.

Do 35um microspheres settle during storage?

Yes. Particles of this size may gradually settle. Thoroughly redisperse the suspension before sampling.

Can SPS35UM-10 be diluted?

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

Can it be used for filter testing?

SPS35UM-10 may be evaluated for filter-retention, membrane-efficiency and particle-recovery studies.

Is SPS35UM-10 a certified calibration standard?

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

Are functionalized versions available?

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

Are bulk quantities available?

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

Request SPS35UM-10 Samples and Quotations

Contact Shanghai SanYu Biotechnology Co., Ltd. for SPS35UM-10 samples, technical specifications, customized packaging and bulk quotations.

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

For Research Use Only.