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90549

Micro particles based on polymethacrylate

Name: Micro particles based on polymethacrylate
Brand: SIAL

size: 20 μm, analytical standard

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

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Properties

grade

analytical standard

Quality Level

100

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

Description

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:

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

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A label-free high throughput resistive-pulse sensor for simultaneous differentiation and measurement of multiple particle-laden analytes

Jagtiani AV, et al.

Journal of Micromechanics and Microengineering, 16(8), 1530-1530 (2006)

Detection and counting of micro-scale particles and pollen using a multi-aperture Coulter counter