90549
Micro particles based on polymethacrylate
analytical standard, size: 20 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
grade
analytical standard
Quality Segment
form
particles, suspension
concentration
10% (solids)
technique(s)
diffraction/scattering: suitable
particle size
20 μm std dev <0.5 μm, coeff var <2%
application(s)
cosmetics
environmental
food and beverages
pharmaceutical
format
neat
storage temp.
2-8°C
General description
Polymethacrylate-based microparticles (size: 20 μm) are a size standard, ideal to determine particle size distribution (PSD) profile of a particle system.
Application
Applicable for calibrating and validating particle size analyzers.
It can be used to:
It can be used to:
- count and differentiate microscale particles using Coulter-type sensor
- detect and measure the micropolymethacrylate-laden analytes
Features and Benefits
- suitable for routine instrument calibration checks, testing and corrections
- available in 5 mL pack size as a neat sample
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.
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Storage Class
12 - Non Combustible Liquids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves
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