Microspheres

Small, spherical particles available in a range of sizes, colors, and material compositions, and possessing various surface modifications for specialized applications. These applications include use in assaying, calibration, labeling, flow cytometry, etc.

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Thermo Scientific™ SURF-CAL™ Particle Size Standards

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

Pricing and Availability
Specifications

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

Thermo Scientific™ COUNT-CAL™ Count Precision Size Standards

Minimize contamination by eliminating the need for serial dilutions and extensive sample handling with Thermo Scientific™ COUNT-CAL™ Count Precision Size Standards.

Pricing and Availability
Specifications

Includes	Certificate of Calibration and Traceability to NIST, Particle Counting Protocol
Stability	Product stable for a minimum of six months
Description	Products provide a precise method for calibrating or checking the performance of laser particle counters
Contents	Polystyrene microspheres in water
Product Type	Count Control Particles
Color	White or Colorless
Refractive Index	1.59 at 589nm (25°C)
Quantity	6 x 25 mL
Material	Polystyrene
Concentration	3000 particles/mL ± 10%
Certifications/Compliance	Certificate of Calibration and Traceability to NIST
For Use With (Application)	Liquid Particle Counter Validation,USP Verification
Size Distribution	<3%

Thermo Scientific™ PHARM-TROL™ Count Precision Size Standards

Document the reproducibility of a particle counter by permitting a continuous record of its performance.

Pricing and Availability
Specifications

Includes	Certificate of Calibration and Traceability to NIST
Particle Density	1.05g/cm³
Stability	Product stable for a minimum of 12 months
Contents	Polystyrene microspheres in water
Product Type	Count Control Particles
Color	White or Colorless
Refractive Index	1.59 at 589nm (25°C)
Material	Polystyrene
Concentration	3800 particles/mL ± 15%
For Use With (Application)	USP Verification
Size Distribution	<3%

Thermo Scientific™ Validex™ Count Precision Size Standards

Validate the performance of liquid particle counters with Thermo Scientific™ Validex™ Count Precision Size Standards.

Pricing and Availability
Specifications

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 3 months
Description	Designed specifically for the drinking water industry to validate the performance of liquid particle counters.
Color	White or Colorless
Quantity	500 mL
Material	Polystyrene
Concentration	1000 particles/mL ± 10%
For Use With (Application)	Liquid Particle Counter Validation
Size Distribution	<3
Includes	Certificate of Calibration and Traceability to NIST
Additive	Contains trace amount of surfactant
Contents	Polymer particles in water
Product Type	Count Control Particles
Refractive Index	1.59 at 589nm (25°C)

Molecular Probes™ Aliphatic Amine Latex Beads, 2% w/v, 1.0 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.

Pricing and Availability

BioMag™ Micro Particles, Magnetic, Amino Functionalized , MilliporeSigma™ Supelco™

Pricing and Availability

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.

Pricing and Availability
Specifications

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

Molecular Probes™ Aldehyde/Sulfate Latex Beads, 4% w/v, 9 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.

Pricing and Availability

Invitrogen™ Dynabeads™ Biotin Binder

Dynabeads Biotin Binder contains 2.8 μm superparamagnetic beads that bind biotinylated antibodies (or other biotinylated ligands), allowing you to isolate cells from any species (e.g., human, mouse, rat, non-human primates, and cell lines).

Pricing and Availability
Specifications

Shipping Condition	Room Temperature
Target Species	All species
Purity or Quality Grade	Research Grade
Product Type	Biotin Binder
Diameter (Metric)	2.8 μm
Sample Type	PBMC, Tissue Digests, Blood
Output Viability	>95%
Cell Type	All cells from all species

Invitrogen™ MagniSort™ Human CD56 Positive Selection Kit

Designed for the magnetic separation of CD56+ cells by positive selection. It has been optimized for the isolation of CD56+ cells from human normal peripheral blood mononuclear cells utilizing a biotinylated Anti-human CD56 antibody and streptavidin-coated magnetic beads.

Pricing and Availability

Invitrogen™ MagniSort™ Human pan-Monocyte Enrichment Kit

Designed for the magnetic separation of conventional CD14+ and unconventional CD16+CD14- monocytes by negative selection.

Pricing and Availability

Molecular Probes™ Aliphatic Amine Latex Beads, 2% w/v, 3 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.

Pricing and Availability

Invitrogen™ Dynabeads™ Sheep anti-Rat IgG

The product can be used to isolate any cell from any species (except rat), depending on the specificity of the monoclonal rat IgG employed.

Pricing and Availability
Specifications

Shipping Condition	Room Temperature
Target Species	All species, except rat
Purity or Quality Grade	Research Grade
Product Type	Antibody Coated Bead
Diameter (Metric)	4.5 μm
Sample Type	PBMC, Tissue Digests, Blood
Output Viability	>95%
Cell Type	All cells from all species, except rat

Micro Particles Based on Silicon Dioxide, Size: 5 m, MilliporeSigma™ Supelco™

Pricing and Availability

Molecular Probes™ Sulfate Latex Beads, 8% w/v, 0.02 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.

Pricing and Availability

Microspheres

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