Applied Physics Particle Portfolio

PSL & Polystyrene Microspheres

Use PSL/polystyrene particle products for applications that specifically require polymer reference spheres, calibration beads, aerosol standards, wafer deposition or related research.

Material → Measurement Objective

Choose particle material from the method—not from the product name

Material / family	Start here when the requirement is…	Quote variables
PSL / polystyrene latex	Monodisperse particle-size references, particle-counter/optical calibration, aerosol work, or deposited wafer references.	Instrument/application, nominal size(s), form/concentration, quantity, certificate/traceability.
Silica / SiO₂	Silica reference behavior, contamination-wafer work, optical/material research, or functionalized silica formulations.	Size, surface treatment/functionalization, powder vs suspension, solvent/concentration, quantity.
Borosilicate / glass	Powder/particle-size measurement and methods where glass material properties and available size ranges are appropriate.	Method/instrument, nominal size/range, quantity, sample preparation and documentation.
Fluorescent / dyed polymer	Imaging, tracking, optical method development, method visibility or research requiring a colored/fluorescent signal.	Size, color/excitation-emission, surface chemistry, dry/suspension form, concentration/quantity.
Functionalized / assay particles	Conjugation, binding, lateral-flow, diagnostic or assay-development workflows.	Core material, size, functional group/coating, concentration, conjugation target and assay conditions.
Magnetic / metallic nanoparticles	Research workflows where magnetic response, plasmonic/optical properties or specialized surface chemistry are part of the method.	Composition, size, morphology, coating/functionalization, concentration and application.

Make the particle-counter calibration inquiry quote-ready

Instrument, method or end application
Particle material / composition
Nominal size or multi-size set
Dry powder, suspension, concentration or deposited format
Surface chemistry / fluorescence / coating when relevant
Package size / quantity and needed date
Certificate, traceability or other documentation requirement

Do not let the catalog make the engineering decision

Applied Physics has overlapping particle families and many individual size SKUs. The correct quote should be driven by the customer's method and required reference properties—not by whichever product title happens to rank first.

For an accurate quote: use the product quote control so the selected product, variation and quantity remain attached to your request.

Microspheres Hub Particle Size Standards

PSL / POLYSTYRENE