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Merck
CN

87896

Micro particle size standard based on polystyrene monodisperse

analytical standard, size: 20.0 μm

Synonym(s):

Monodisperse polystyrene latex particles (20.0 μm), monodisperse polystyrene microbeads (20.0 μm), monodisperse polystyrene microspheres (20.0 μm), polystyrene monodisperse microparticles (20.0 μm), Size standards

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About This Item

UNSPSC Code:
41116107
NACRES:
NA.24
MDL number:
MFCD00243243

Key Documents

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Product Name

Micro particle size standard based on polystyrene monodisperse, analytical standard, size: 20.0 μm

grade

analytical standard

form

aqueous suspension
particles

crosslinking

2 % cross-linked

concentration

2% (solids)

Quality Level

100

technique(s)

diffraction/scattering: suitable

particle size

20.0 μm std dev <0.4 μm, coeff var <2%

application(s)

cosmetics
environmental
food and beverages
pharmaceutical

format

neat

storage temp.

2-8°C

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Analysis Note

For every lot exact values of particle size and standard deviation are determined with an accuracy of 0.001 μm. The size determination of these particles follows procedures described by National Institute of Standards and Technology (NIST, USA) respectively by the Community Bureau of Reference (BCR), esp.:
  • Transmission electron microscopy (TEM)
  • Scanning electron microscope
  • Light microscopy
  • Coulter™ counter with MDF-system
Calibration of equipment is carried out with NIST-respectively BCR-particle size standards.

Application

Fit for use in equipment particle size calibration.
Also used to:
  • standardize methods of size-dependent chromatographic separations.
  • validate the Airy Disc First Fringe (ADFF) analysis technique based on size measurements.
  • determine the impact of polystyrene microplastic exposure on feeding capacity of marine copepod Calanus helgolandicus.
  • produce monolayers in the synthesis of 2D nanomaterials coated micromotors

Features and Benefits

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

General description

Monodisperse polystyrene based micro particles (size: 20.0 μm) are a particle size standard, designed for identifying the particle size distribution (PSD) profile of test samples.

Legal Information

Coulter is a trademark of Beckman Coulter, Inc.

Storage Class

10 - Combustible liquids

wgk

WGK 3

flash_point_f

410.0 °F

flash_point_c

210 °C

ppe

Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCN5682
BCCN0435
BCCM8581
BCCM7556
BCCM1955

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2D nanomaterials wrapped janus micromotors with built-in multiengines for bubble, magnetic, and light driven propulsion
Yuan K, et al.
Chemistry of Materials, 32(5), 1983-1992 (2020)
The impact of polystyrene microplastics on feeding, function and fecundity in the marine copepod Calanus helgolandicus
Cole M, et al.
Environmental Science & Technology, 49(2), 1130-1137 (2015)
Capillary hydrodynamic chromatography reveals temporal profiles of cell aggregates
Tang R-Y, et al.
Analytica Chimica Acta, 910, 75-83 (2016)
Growth phenotype screening of Schizosaccharomyces pombe using a Lensless microscope
Penwill AL, et al.
Biosensors And Bioelectronics, 54(8), 345-350 (2014)
Growth phenotype screening of Schizosaccharomyces pombe using a Lensless microscope
Penwill LA, et al.
Biosensors And Bioelectronics, 54, 345-350 (2014)

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