Microspheres
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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Diameter (Metric)
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Material
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For Use With (Application)
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1
–
15
of
376
results
1
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.
| 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% |
2
Thermo Scientific™ 3000 Series Nanosphere™ Size Standards
Conveniently check the sizes of bacteria, viruses, ribosomes and sub-cellular components with these size standards.
| 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™ PHARM-TROL™ Count Precision Size Standards
Document the reproducibility of a particle counter by permitting a continuous record of its performance.
| 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% |
4
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 |
5
Thermo Scientific™ Ezy-Cal™ Count Precision Size Standards
Meet the unique and demanding requirements of the contamination control laboratory in modern industries.
| Stability | Product stable for a minimum of three months |
|---|---|
| Contents | Polystyrene microspheres in water |
| Product Type | Count Control Particles |
| Color | White or Colorless |
| Refractive Index | 1.59 at 589nm (25°C) |
| Quantity | 100 mL |
| Material | Polystyrene |
| Concentration | 2000 particles/mL ± 10% |
| For Use With (Application) | Liquid Particle Counter Calibration |
6
Thermo Scientific™ Validex™ Count Precision Size Standards
Validate the performance of liquid particle counters with Thermo Scientific™ Validex™ Count Precision Size Standards.
| 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) |
7
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 |
8
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 |
9
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 |
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™ 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% |
12
13
Cytiva Sera-Mag SpeedBeads™ Carboxyl Magnetic Beads, hydrophobic
Excellent for coupling oligos or proteins directly to the beads. Their cauliflower-like structure gives Sera-Mag beads high binding capacity. The carboxyl groups on these beads can be activated by standard EDC/EDAC chemistry to react with free amino groups, forming amide bonds.
| Content And Storage | 2°C to 8°C |
|---|---|
| Diameter (Metric) | 1 μm |
| Concentration | 5% solids (50mg/mL) |
| For Use With (Application) | DNA Sample Prep,Protein Purification |
14
Cytiva Sera-Mag SpeedBeads™ Carboxyl Magnetic Beads, hydrophilic
Excellent for coupling oligos or proteins directly to the beads. Their cauliflower-like structure gives Sera-Mag beads high binding capacity. The carboxyl groups on these beads can be activated by standard EDC/EDAC chemistry to react with free amino groups, forming amide bonds.
| Content And Storage | 2°C to 8°C |
|---|---|
| Diameter (Metric) | 1 μm |
| Concentration | 5% solids (50mg/mL) |
| For Use With (Application) | DNA Sample Prep,Protein Purification |
15
IBA Lifesciences MagStrep 'Type3' Strep-Tactin Beads 5% Suspension
MagStrep 'type3' Strep-Tactin beads 5% suspension are magnetic beads to purify biotinylated proteins.