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Merck
CN

79195

Supelco

Micro particles, magnetic, biotin coated

1 μm particle size

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About This Item

UNSPSC Code:
12352200
NACRES:
NA.25
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grade

analytical standard

Quality Level

form

aqueous suspension

composition

iron oxide, ≥20%

concentration

1% (solids)

particle size

1 μm

application(s)

glass & ceramic
industrial qc
pharmaceutical

format

neat

storage temp.

2-8°C

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General description

Biotin-coated magnetic microparticles are a particle size standard, ideal for particle size distribution (PSD) analysis of a particle system.
The accurate diameter of 1 μm is determined by methods described by the National Institute of Standards and Technology (NIST, USA), such as:
  • Transmission electron microscopy
  • Scanning electron microscopy
  • Optical microscopy
  • COULTER COUNTER particle size analyzer with HDF system

The measuring instruments are calibrated using standards obtained from the Community Bureau of Reference (BCR, Belgium: Standards RM 165, 166 or 167) and from the NIST (SRM 1690, 1691 or 1692). This product comprises superparamagnetic polystyrene particles.
Superparamagnetic polystyrene particles

Application

Used to calibrate particle size analyzers and particle counters.

Features and Benefits

  • suitable for routine instrument calibration checks, testing and corrections
  • available in 5 mL pack size as a neat sample

Analysis Note

Streptavidin activity POD > 500 U/g

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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