Microspheres
Malvern Panalytical 20 Nm/15 mL Polystyrene Standard
Nanosphere Size Standards 20nm /15ml.Nanosphere Size Standards are highly uniform polystyrene spheres calibrated by NIST traceable standards and packaged as aqueous suspensions in dropper-tipped bottles. 1% solids, optimized for easy dispersal and colloidal stability. Includes Certificate of Calibration and Traceability to NIST.
Hamilton Thorne Inc Accu-Beads Triple Package, Quality Control Beads, 3 concentrations (3 M/ml, 18 M/ml, 35 M/ml), 5 ml per aliquot, Static (non-motile), Room temperature storage, Shelf Life 2 years
Accu-Beads Triple Package, Quality Control Beads, 3 concentrations (3 M/ml, 18 M/ml, 35 M/ml), 5 ml per aliquot, Static (non-motile), Room temperature storage, Shelf Life 2 years
SCP Science CONOSTAN PartiStan 2806 Calibration Fluid, Secondary Calibration, ISO 11171 Compliance, 400 mL
PartiStan 2806 Calibration Fluid (400 mL) is a specialized calibration fluid from CONOSTAN, designed for precise secondary calibration of automatic particle counters (APCs). It complies with ISO 11171 standards and ensures NIST traceability, offering reliable performance for specific applications where reduced concentration is required. Ideal for laboratories, it supports accurate measurement and enhances compliance with industry standards, setting it apart from standard calibration fluids.
Electron Microscopy Sciences Particle Size Standard Nanosphere 400nm 15 ML
Polystyrene sphere particle-size standards are certified for mean diameter and are traceable to the National Bureau of Standards (NBS). Use for calibration of electron microscopes for viruses, bacteria, and sub-cellular. Packaged as aqueous suspensions.
Certified Mean diameter: 400nm
Nominal Mean diameter: 404nm+/-4.0nm
Size Uniformity std. dev. & C.V: 5.9 nm (1.5%)
Solids content: 1%
Electron Microscopy Sciences Particle Size Standard Microsphere 10.0 µm 15 ML
Polystyrene sphere particle-size standards are certified for mean diameter and are traceable to the National Bureau of Standards (NBS). The most uniform spheres available and are recommended for the highest level of measurement accuracy in the 1 to 40 micron size.
Certified Mean diameter: 10.0 µm
Nominal Mean diameter: 9.975+/-0.061
Size Uniformity std. dev. & C.V: 0.09 µm (0.09%)
Solids content: 1%
Electron Microscopy Sciences Particle Size Standard Microsphere 1.0 µm 15 ML
The most uniform spheres available and are recommended for the highest level of measurement accuracy in the 1 to 40 micron size.
Certified Mean diameter: 1.0 µm
Nominal Mean diameter: 0.993+/-0.021
Size Uniformity std. dev. & C.V: 0.010 µm (1.0%)
Solids content: 1%
Hamilton Thorne Inc Accu-Beads QC Test Kit, 5 ml, Latex beads, 18 M/ml and 35 M/ml concentrations, Aqueous solution, Room temperature storage, Semen analysis quality control.
The Hamilton Thorne Accu-Beads QC Test Kit is a robust quality control solution for semen analysis, providing two known concentrations that simulate human sperm size. This kit ensures accuracy in counting procedures by validating the performance of manual and automated analyzers without the variable of motility.
- Quality control test kit for semen analysis
- Contains static latex beads in an aqueous medium
- Available concentrations of 18 M/ml and 35 M/ml
- Volume of 5 ml aliquots
- Room temperature storage conditions
- Shelf life of up to 2 years
- Compatible with various counting chambers
- Application across manual and automated analysis
- Evaluates counting precision and system performance
- No motility variable in assessment
Enzo Life Sciences AluI (1000U)
AluI is a restriction enzyme that recognizes AG^CT sites. 10X Cutting Buffer is included that contains BSA, which enhances enzyme stability and binds to contaminants in DNA preps. AluI is a restriction enzyme that recognizes AG^CT sites. 10X Cutting Buffer is included that contains BSA, which enhances enzyme stability and binds to contaminants in DNA preps. Concentration: AluI 10,000 units/ml Includes 10X Cutting Buffer. Formulation: Liquid. In 100mM KCl, containing 10mM Tris-HCl, pH 7.4, 1mM DTT, 0.1mM EDTA, 50% glycerol and 200µg/ml BSA. After reconstitution, 1X Cutting Buffer: 50mM potassium acetate, 20mM Tris-acetate, 10mM magnesium acetate, 100µg/ml BSA, pH 7.9, at 25°C. Source: Produced in an E. coli strain that carries the cloned AluI gene from Arthrobacter luteus. Long Term Storage: -20°C. Applications: CGH, Genotyping, Cloning, Southern Blot.
