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Filtered Search Results

Invitrogen™ FluoSpheres™ Carboxylate-Modified Microspheres
Achieve the brightest fluorescence with Carboxylate-Modified FluoSphere Microspheres, available in different colors and particle sizes.


Non-distribution item offered as a customer accommodation; additional freight charges may apply.
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Product Type | Carboxylate-Modified Microsphere |
---|---|
Surface Modification | Carboxylate |
Material | Polystyrene |
For Use With (Application) | Fluorescence Microscopy |
Product Line | FLUOSPHERES™ |
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.
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 |
Molecular Probes™ Sulfate Latex Beads, 8% w/v, 0.5 μm
Microspheres (also called latex beads or latex particles) are spherical particles in the colloidal size range that are formed from an amorphous polymer such as polystyrene.


Non-distribution item offered as a customer accommodation; additional freight charges may apply.
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Thermo Scientific™ ChromoSphere™ Dry Dyed Polymer Particles
Achieve high visual contrast with polymer particles that are internally and deeply dyed in intense red or black.
Includes | Material Safety Data Sheet (MSDS) |
---|---|
Particle Density | 1.05g/cm³ |
Content And Storage | Store at room temperature. Keep bottle tightly sealed to avoid contamination. |
Additive | May contain trace amount of dispersant |
Stability | Product stable for a minimum of 24 months |
Contents | Dry dyed polystyrene (DVB) microspheres |
Product Type | Polymer Particles |
Refractive Index | 1.59 at 589nm (25°C) |
Material | Polystyrene Divinylbenzene (PS-DVB) |
Uniformity | <10% |
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 |
Thermo Scientific™ 4000 Series Monosized Particles
Minimize response of analytic systems to shape effects with monosized particles.
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 |
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) |
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) |
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 |
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.
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 |
Thermo Scientific™ 5000 Series 0.31μm to 0.93μm Polymer Particle Suspensions
Meet the need for particulate materials with a variety of particle sizes and properties with Thermo Scientific™ 5000 Series Polymer Particle Suspensions
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% |
Invitrogen™ FluoSpheres™ Polystyrene Microspheres, 15 μm, red fluorescent (580/605), for blood flow determination
Microspheres (also called latex beads or latex particles) are spherical particles in the colloidal size range that are formed from an amorphous polymer such as polystyrene.


Non-distribution item offered as a customer accommodation; additional freight charges may apply.
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Invitrogen™ FluoSpheres™ NeutrAvidin™-Labeled Microspheres, 0.04 μm, yellow-green fluorescent (505/515), 1% solids
Microspheres (also called latex beads or latex particles) are spherical particles in the colloidal size range that are formed from an amorphous polymer such as polystyrene.


Non-distribution item offered as a customer accommodation; additional freight charges may apply.
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Molecular Probes™ Sulfate Latex Beads, 8% w/v, 2 μm
Microspheres (also called latex beads or latex particles) are spherical particles in the colloidal size range that are formed from an amorphous polymer such as polystyrene.


Non-distribution item offered as a customer accommodation; additional freight charges may apply.
Learn More
Invitrogen™ Dynabeads™ FlowComp™ Mouse CD4 Kit
This gentle and easy-to-use kit allows you to isolate flow-compatible mouse CD4+ T cells. Immediately after positive isolation, the beads are released and removed from your cell sample.


Non-distribution item offered as a customer accommodation; additional freight charges may apply.
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