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Merck
CN

90515

Micro particles based on polymethacrylate

analytical standard, size: 8 μm

Synonym(s):

PMMA microbeads, 2-Propenoic acid,2-methyl homopolymer, 2-methyl-2-propenoic acid homopolymer, Microparticles based on PMAA, Microparticles based on poly(methacrylic acid), Polymethacrylate

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About This Item

UNSPSC Code:
41116107
NACRES:
NA.24
MDL number:
MFCD00198073

Key Documents

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grade

analytical standard

form

particles, suspension

concentration

10% (solids)

Quality Level

100

technique(s)

diffraction/scattering: suitable

particle size

8 μm std dev <0.15 μm, coeff var <2%

application(s)

environmental
food and beverages
pharmaceutical

format

neat

storage temp.

2-8°C

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General description

Polymethacrylate-based microparticles are a particle size standard, ideal for characterizing particle size and count to present a particle size distribution (PSD) profile of a particle system.

Application

Applicable for calibrating and validating particle size analyzers.
Also used:
  • to identify the mechanical effects of PMMA microplastics on model cell membranes
  • in optical detection techniques that monitor the presence of micron-sized particles in water

Features and Benefits

  • suitable for routine instrument calibration checks, testing and corrections
  • available in 5 mL and 10 mL pack sizes as neat samples

Analysis Note

The exact values for particle size and standard deviation are determined for each lot and may be found on the certificate of analysis. These values are determined with an accuracy of 0.01 μm (Coulter Multisizer). Polymethacrylate based particles have a narrow size distribution and spherical shape. They are stable at temperatures of up to 100 °C Density is 1.22 g/cm3. The surface is negatively charged. Good biocompatibility and reduced nonspecific protein binding are characteristic.

Storage Class

10 - Combustible liquids

wgk

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCP0593
BCCN8917
BCCN4292
BCCN1812
BCCN0438

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Microplastics destabilize lipid membranes by mechanical stretching
Fleury JB and Baulin VA
Proceedings of the National Academy of Sciences, 118(31) (2021)
Enhanced real-time optical detection of micron-sized particles in water using standing ultrasonic wave fields
SPIE Proc., 5994, 59940Z-59940Z (2005)

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