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Magnetic Solid-Phase Extraction
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Chemiluminescence Immunoassay
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Particle Size Standards
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Counting Standard Particles
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Special Standard Particles
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Flow Cytometry Encoding Microspheres
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Flow Cytometry Absolute Counting Microspheres
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Flow Cytometry Instrument QC Microspheres
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Flow Cytometry Optical Alignment Microspheres
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Nucleic Acid Extraction
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Specific Hybrid Capture
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NGS Library Fragment Size Selection
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Protein Purification
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Immunoprecipitation
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Immunoturbidimetric
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Immunochromatography
Counting Standard Particles
Product Description
They feature accurate particle size and particle counting characteristics. These particles are first certified for particle size, then quantified for number concentration using the Coulter electrical sensing zone method. They are primarily used in cleanroom and contamination detection applications. We offer particles with sizes ranging from 0.5 – 25 μm, with values traceable to NIST standard reference materials. Supplied at a defined number concentration, these products can be readily adjusted for use in calibrating airborne or liquid particle counting systems, such as laser particle counters.
Ordering Information
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| Product Code | Product Name | Particle Size (µm) | Particle Size CV (%) | Material | Appearance | Solid Content / Concentration | Package Size |
| SPCTL-050 | CalibStar® CTL050 | 0.50 | 2% | Polystyrene (PS) | White homogeneous suspension | 1e9 / mL | 10mL |
| SPCTL-100 | CalibStar® CTL100 | 1.0 | 2% | Polystyrene (PS) | White homogeneous suspension | 1e9 / mL | 10mL |
| SPCTL-300 | CalibStar® CTL300 | 3.0 | 2% | Polystyrene (PS) | White homogeneous suspension | 5e7 / mL | 10mL |
| SPCTL-400 | CalibStar® CTL400 | 4.0 | 2% | Polystyrene (PS) | White homogeneous suspension | 5e7 / mL | 10mL |
| SPCTL-500 | CalibStar® CTL500 | 5.0 | 2% | Polystyrene (PS) | White homogeneous suspension | 1e7 / mL | 10mL |
| SPCTL-700 | CalibStar® CTL700 | 7.0 | 2% | Polystyrene (PS) | White homogeneous suspension | 1e7 / mL | 10mL |
| SPCTL-1000 | CalibStar® CTL1000 | 10 | 2% | Polystyrene (PS) | White homogeneous suspension | 1e6 / mL | 10mL |
| SPCTL-1500 | CalibStar® CTL1500 | 15 | 2% | Polystyrene (PS) | White homogeneous suspension | 1e6 / mL | 10mL |
| SPCTL-2000 | CalibStar® CTL2000 | 20 | 2% | Polystyrene (PS) | White homogeneous suspension | 3e5 / mL | 10mL |
| SPCTL-2500 | CalibStar® CTL2500 | 25 | 2% | Polystyrene (PS) | White homogeneous suspension | 3e5 / mL | 10mL |