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1 – 15 of 25 results
1

Thermo Scientific™ 4000 Series Monosized Particles

Minimize response of analytic systems to shape effects with monosized particles.

EDGE
Includes Certificate of Calibration and Traceability to NIST
Particle Density 1.05g/cm³
Stability Product stable for a minimum of 24 months
Description NIST traceable particles that provide calibration of laser particle counters
Product Type Size Standard Particles
Color White or Colorless
Material Polystyrene
Certifications/Compliance Each package of standards contains a Certificate of Calibration and Traceability to NIST which includes a description of the calibration method and its uncertainty, and a table of chemical and physical properties.
For Use With (Application) Narrow Size Standard Deviation Applications
2

Thermo Scientific™ 3000 Series Nanosphere™ Size Standards

Conveniently check the sizes of bacteria, viruses, ribosomes and sub-cellular components with these size standards.

EDGE
Particle Density 1.05g/cm³
Content And Storage Unless otherwise stated, refrigerate (2° to 8°C) product when not in use but do not freeze. Store upright and keep bottle tightly sealed. Mix product with gentle inversion by hand or vortex mixer.
Stability Product stable for a minimum of 24 months
Description 3000 Series Nanosphere Size Standards come in optimized concentrations for easy dispersal and colloidal stability.
Color White or Colorless
Quantity 15 mL
Material Polystyrene
Concentration 1% solids
For Use With (Application) Electron Microscope Calibration
Includes Certificate of Calibration and Traceability to NIST
Additive Contains trace amount of surfactant to inhibit agglomeration and promote stability
Contents Polymer particles in water
Product Type Size Standard Particles
Refractive Index 1.59 at 589nm (25°C)
3

Thermo Scientific™ Duke Standards™ 2000 Series Uniform Polymer Particles

Analyze wide size range materials through laser diffraction or other methods with uniform polymer particles that mimic real world particles.

EDGE
Includes Material Safety Data Sheet (MSDS), Certificate of Calibration and Traceability to NIST
Particle Density 1.05g/cm³
Content And Storage Store at room temperature or keep refrigerated. Keep bottle tightly sealed to avoid contamination.
Additive Contains trace amount of surfactants
Stability =24 months
Product Type Polymer Particles
Color White or Colorless
Refractive Index 1.59 at 589nm (25°C)
Quantity 15 mL
Material Polystyrene Divinylbenzene (PS-DVB)
For Use With (Application) Narrow Size Standard Deviation Applications
4

Thermo Scientific™ 3K/4K Series Particle Counter Standards

Ensure accurate and convenient calibration of laser particle counters with Thermo Scientific™ 3K/4K Series Particle Counter Standards.

EDGE
Includes Certificate of Calibration and Traceability to NIST
Additive Contains trace amount of surfactant to inhibit agglomeration and promote stability
Description NIST traceable particles that provide calibration of laser particle counters
Contents Polymer particles in water
Product Type Count Control Particles
Color White or Colorless
Refractive Index 1.59 at 589nm (25°C)
Quantity 15 mL
Material Polystyrene
For Use With (Application) Laser Particle Counter Calibration
5

Thermo Scientific™ Fluoro-Max Dyed Green Aqueous Fluorescent Particles

Improve sensitivity and detectability for analytical methods with green aqueous fluorescent particles.

Includes Package Insert Sheet
Particle Density 1.05g/cm³
Content And Storage Unless otherwise stated, refrigerate (2° to 8°C) product when not in use but do not freeze. Store upright and keep bottle tightly sealed. Mix product with gentle inversion by hand or vortex mixer. Product comes with stir bar for continual mixing duriong sampling.
Additive Trace amounts of surfactant to inhibit agglomeration and promote stability
Stability Product stable for a minimum of 24 months
Contents Dyed polystyrene microspheres in water
Product Type Fluorescent Particle
Color Green
Refractive Index 1.59 at 589nm (25°C)
Material Polystyrene
Concentration 1% solids
Dye Type Firefli™ Fluorescent Green (468/508nm)
6

Thermo Scientific™ 9000 Series Glass Particle Standards

Replace polystyrene spheres in many applications with dry glass NIST™-traceable size standards.

Content And Storage Store at room temperature. Keep bottle tightly sealed to avoid contamination.
Additive None
Stability Product stable for a minimum of 24 months
Product Type Size Standard Particles
Color White
Quantity 1 g
For Use With (Application) Narrow Size Standard Deviation Applications
7

Thermo Scientific™ ChromoSphere™-T Certified Size Standards

Achieve high visual contrast with Thermo Scientific™ ChromoSphere™-T Certified Size Standards, colored polymer microspheres with NIST™-traceable diameters.

Particle Density 1.05g/cm³
Content And Storage Store at room temperature in a dry area. Store upright and keep bottle tightly sealed. Respiratory protection from dust is recommended.
Stability Product stable for a minimum of 24 months
Description Designed for use as reference or calibration materials in applications where high contrast is required.
Quantity 1 g
Material Polystyrene Divinylbenzene (PS-DVB)
Concentration 100% solids
For Use With (Application) Cleaning Evaluation,High Contrast Reference and Calibration
Includes Certificate of Calibration and Traceability to NIST
Additive May contain trace amount of dispersant
Contents Dry dyed polystyrene (DVB) microspheres
Product Type Size Standard Particles
Refractive Index 1.59 at 589nm (25°C)
Certifications/Compliance Certificate of Calibration and Traceability to NIST
8

Thermo Scientific™ 5000 Series 1.0μm to 3.2μm Polymer Particle Suspensions

Meet the need for particulate materials with a variety of particle sizes and properties.

Includes General product handling insert sheet
Particle Density 1.05g/cm3
Content And Storage Unless otherwise stated, refrigerate (2° to 8°C) product when not in use but do not freeze. Store upright and keep bottle tightly sealed. Mix product with gentle inversion by hand or vortex mixer.
Additive Contains trace amount of surfactant to inhibit agglomeration and promote stability
Stability Product stable for a minimum of 24 months
Description Particles useful for such applications as filter evaluation, checking and testing, light scattering research, fluid mechanics research, aerosol particle generation, dispersion studies, and many other research and development projects. They are not intended for use in instrument calibration.
Product Type Polymer Particle Suspensions
Color White or Colorless
Refractive Index 1.59 at 589nm (25°C)
Material Polystyrene
Concentration 10%
For Use With (Application) Aerosol Particle Generation,Dispersion,Filter Evaluation,Light Scattering,Particle Generation
9

Thermo Scientific™ Dyed Red Aqueous Fluorescent Particles

Improve sensitivity and detectability for analytical methods with microsphere suspensions that are internally dyed and feature bright, high-contrast colors.

Includes Package Insert Sheet
Particle Density 1.05g/cm³
Content And Storage Unless otherwise stated, refrigerate (2° to 8°C) product when not in use but do not freeze. Store upright and keep bottle tightly sealed. Mix product with gentle inversion by hand or vortex mixer. Product comes with stir bar for continual mixing duriong sampling.
Additive Trace amounts of surfactant to inhibit agglomeration and promote stability
Stability Product stable for a minimum of 24 months
Contents Dyed polystyrene particles in water
Product Type Fluorescent Particle
Color Red
Refractive Index 1.59 at 589nm (25°C)
Material Polystyrene
Concentration 1% solids
Dye Type Firefli Fluorescent Red (542/612nm)
10

Thermo Scientific™ Dri-Cal™ Particle Size Standards

Use Thermo Scientific™ Dri-Cal™ Particle Size Standards for calibrating particle sizing and counting instruments that require dry particles.

Particle Density 1.05g/cm³
Content And Storage Store at room temperature in a dry area. Store upright and keep bottle tightly sealed. Respiratory protection from dust is recommended.
Stability Product stable for a minimum of 24 months
Description Used for calibrating particle sizing and counting instrumentation that require dry particles for measuring dry media.
Color White
Quantity 1 g
Material Polystyrene Divinylbenzene (PS-DVB)
Concentration 100% solids
For Use With (Application) Dry Particle Counter Calibration
Includes Certificate of Calibration and Traceability
Additive May contain trace amount of dispersant
Contents Dry dyed polystyrene (DVB) microspheres
Product Type Size Standard Particles
Refractive Index 1.59 at 589nm (25°C)
11

Thermo Scientific™ Fluoro-Max Green and Red Dry Fluorescent Particles

Improve sensitivity and detectability for analytical methods with fluorescent particles that feature bright, distinct colors.

Includes Package Insert Sheet
Particle Density 1.05g/cm³
Content And Storage Store at room temperature in a dry area. Store upright and keep bottle tightly sealed. Respiratory protection from dust is recommended.
Additive May contain trace amount of dispersant
Stability Product stable for a minimum of 24 months
Contents Dry dyed polystyrene (DVB) microspheres
Product Type Fluorescent Particle
Refractive Index 1.59 at 589nm (25°C)
Material Polystyrene Divinylbenzene (PS-DVB)
12

Thermo Scientific™ Fluoro-Max™ Fluorescent Carboxylate-Modified Particles

Lower detection limits of fluorescent assays by limiting background interference from relatively short-lived matrix fluorescence.

Particle Density 1.06g/cm³
Content And Storage Unless otherwise stated, refrigerate (2° to 8°C) product when not in use but do not freeze. Shipment at ambient temperature. Store upright and keep bottle tightly sealed. Mix product with gentle inversion by hand or vortex mixer.
Stability Product stable for a minimum of 36 months
Color White
Binding Property Carboxylate-modified
Material Polystyrene or Polystyrene with Coploymer Grafted Surface
Concentration 1% solids
Dye Type Europium Chelate
Includes Package Insert Sheet containing Certicate of Analysis
Additive 0.05% Sodium Azide
Contents Fluorescent red dyed polystyrene microspheres in water
Product Type Fluroescent Carboxylate-Modified Particle
Surface Modification Carboxylate-Modified
Uniformity <5% CV
13

Thermo Scientific™ SURF-CAL™ Particle Size Standards

Simplify the preparation of calibration wafers with these particle size standards.

Includes Certificate of Calibration and Traceability to NIST
Particle Density 1.05g/cm³
Content And Storage Unless otherwise stated, refrigerate (2° to 8°C) product when not in use but do not freeze. Store upright and keep bottle tightly sealed. Mix product with gentle inversion by hand or vortex mixer.
Additive None
Stability Product stable for a minimum of 12 months
Contents Polystyrene microspheres in deionized, filtered water
Product Type Size Standard Particles
Refractive Index 1.59 at 589nm (25°C)
Quantity 50 mL
Material Polystyrene
For Use With (Application) SSIS Calibration and Maintenance
14

Thermo Scientific™ Opti-Bind™ Polystyrene Sulfate Particles

Achieve maximum reactivity in many diagnostic applications with Thermo Scientific™ Opti-Bind™ Polystyrene Sulfate Particles.

Includes Package Insert and Certificate of Analysis
Content And Storage 2°C to 8°C
Description Opti-Bind Polystyrene Sulfate Particles
Product Type Specialty Particles
Material Polystyrene Sulfate
Shelf Life 10 Years
Certifications/Compliance Includes Certificate of Analysis
Specialty Packaging Opti-Bind Polystyrene particles are available in different concentrations and package sizes upon request.
For Use With (Application) Diagnostic Assays
15

Thermo Scientific™ Color-Rich Dyed Carboxylate-Modified Particles

Obtain superior test sensitivity in qualitative and quantitative lateral flow tests with Thermo Scientific™ Color-Rich Dyed Carboxylate-Modified Particles.

Includes Certificate of Analysis
Stability Product stable for a minimum of 24 months
Contents Dyed polystyrene microspheres in water
Product Type Carboxylate-Modified Particle
Surface Modification Carboxylate-Modified
Refractive Index 1.59 at 589nm (25°C)
Binding Property Carboxylate-modified
Uniformity <5% CV