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1 – 15 of 110 results
1

Thermo Scientific™ PHARM-TROL™ Count Precision Size Standards

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

EDGE
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%
2

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.

EDGE
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%
3

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)
4

Thermo Scientific™ Ezy-Cal™ Count Precision Size Standards

Meet the unique and demanding requirements of the contamination control laboratory in modern industries.

EDGE
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
5

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
6

Invitrogen™ AccuCheck™ ERF Reference Particles

Used for standardization and calibration of an intensity unit of fluorescence for flow cytometry analysis

EDGE
7

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
8

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
9
Promotions Available

Invitrogen™ FluoSpheres™ Carboxylate-Modified Microspheres

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

EDGE
Product Type Carboxylate-Modified Microsphere
Surface Modification Carboxylate
Material Polystyrene
For Use With (Application) Fluorescence Microscopy
Product Line FLUOSPHERES™
10

Thermo Scientific™ Validex™ Count Precision Size Standards

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

EDGE
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)
11

Thermo Scientific™ 9000 Series Glass Particle Standards

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

EDGE
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
12
Promotions Available

Invitrogen™ Total Exosome Isolation Reagent (from urine)

Total Exosome Isolation Reagent from urine enables fast and efficient enrichment of intact exosomes with a protocol that is scalable depending on sample size.

EDGE
13
Promotions Available

Invitrogen™ UltraComp eBeads™ Plus Compensation Beads

UltraComp eBeads Plus Compensation Beads are the second generation of UltraComp beads for use in flow cytometry.

Product Type Compensation Beads
14

Invitrogen™ TransFluoSpheres™ Carboxylate-Modified Microspheres, 1.0 μm (488/645), 2% 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.

15

Invitrogen™ FluoSpheres™ Polystyrene Microspheres, 10 μm, orange fluorescent (540/560), 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.