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59769

Mikropartikel auf Polystyrolbasis

size: 500 nm

Synonym(e):

Latex-Beads aus PS

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Ihnen/SKUVerfügbarkeitPreis
5 mL
Warenkorb auf Verfügbarkeit prüfen
€ 309,00
10 mL
Warenkorb auf Verfügbarkeit prüfen
€ 548,00

Über diesen Artikel

UNSPSC Code:
12352116
NACRES:
NA.32
MDL number:

€ 309,00


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Quality Segment

form

aqueous suspension

concentration

10% (solids)

particle size

500 nm

density

1.05 g/cm3

storage temp.

2-8°C

General description

Micro Particles or Latex Beads, commonly known as polystyrene microparticles, are negatively charged colloidal particles. The microparticles are produced through a polymerization reaction of styrene under controlled conditions. The conducive environment of the reaction induces spontaneous coalescent bead formation. Micro Particles or Latex beads are supplied in aqueous solutions composed of polymer particles with water. Polystyrene′s refractive index at 589 nm is 1.5905 and 1.602 at 486 nm.

Application

Micro Particles or Latex Beads is used for a wide variety of applications like:

  • Electron Microscopy.
  • Cell Counter Calibration.
  • Immunodiagnostics, especially for latex agglutination tests, and
  • Phagocytosis Research.

Analysis Note

Für jede Charge werden die exakte Partikelgrösse und die Standardabweichung mit einer Genauigkeit von 0.01 μm unter Verwendung eines Coulter Multisizers bestimmt.

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Dieser Artikel
433028990472986
particle size

500 nm

particle size

100 nm std dev ≤0.01 μm

particle size

1 μm std dev <0.1 μm, coeff var <5%

particle size

10 μm std dev <0.2 μm, coeff var <2%

form

aqueous suspension

form

aqueous suspension

form

aqueous suspension

form

aqueous suspension

concentration

10% (solids)

concentration

10% (solids)

concentration

10% (solids)

concentration

10% (solids)

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

density

1.05 g/cm3

density

1.05 g/cm3

density

1.05 g/cm3

density

1.05 g/cm3


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Lagerklasse

10 - Combustible liquids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves



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Questions

1–5 of 5 Questions  
  1. Are the microparticles suitable for direct use in aseptic experiments (e.g. tissue culture)? If no, how may they be sterilised for such work?

    1 answer
    1. This product has not been tested specifically in tissue culture applications. As polystyrene is not autoclavable, they would need ethylene oxide gas sterilization or gamma irradiation for aseptic experiments.

      Helpful?

  2. What is the Mw of the PS microsphere?

    1 answer
    1. The molecular weight of the polystyrene has not been determined.

      Helpful?

  3. We would like to use the PSL for an aerosol particle generator. Is there any recommended dilution?

    1 answer
    1. This solution contains 10% solids. The product is not tested for suitability in any specific application. The end user would have to determine the appropriate dilution, experimentally. A suggestion would be to initially try the solution neat followed by further serial 2 or 4 fold dilutions in an attempt to determine the optimum concentration for the application. Please see the links below to review publications which may be helpful:

      https://www.tandfonline.com/doi/full/10.1080/02786826.2013.868594

      https://www.tandfonline.com/doi/full/10.1080/02786826.2018.1505032

      Helpful?

  4. Does the material with part number 59769 contain surfactant to aid in dispersibility? Also, what is the pH of this material?

    1 answer
    1. The product polystyrene microparticles does not contain surfactants and comes in deionized water. The particles have an anionic surface charge due to sulfate groups coming from the initiator in the polymerization reaction. Additionally, the particles’ Zeta potential is in the – 50 mV region over a wide pH range from approximately 2 through 10.

      Helpful?

  5. Does this product have surfactants?

    1 answer
    1. Product 59769 - Polystyrene microparticles do not contain surfactants. The polystyrene microparticles are supplied in deionized water.

      Helpful?

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