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Key Documents

41110

Sigma-Aldrich

Micro particles based on polystyrene, superparamagnetic, red fluorescent

size: 10 μm

Synonym(s):

PS-MAGFluoRed

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About This Item

UNSPSC Code:
12352108
NACRES:
NA.32
Pricing and availability is not currently available.

Quality Level

100

composition

iron oxide, ≥20%

concentration

1% (solid)

particle size

10 μm std dev ≤0.3 μm, coeff var 2.1%

density

1.3-2.3 g/cm3 (particle specific gravity)

fluorescence

λex 650 nm; λem 678 nm

storage temp.

2-8°C

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Components

Particle composition
Polystyrene
Iron oxide
FluoRed fluorescent dye

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

410.0 °F

Flash Point(C)

210 °C

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Certificates of Analysis (COA)

Lot/Batch Number
BCCH6957
BCCG3423
BCCB5207
BCBS6570V
BCBK7739V

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Questions

1–2 of 2 Questions  

  1. If I want to measure the particles by UV–vis spectrometer, what is their detection wavelength?

    1 answer

    1. A supplier Certificate of Analysis shows the blank and sensitivity absorbances are tested at 460 nm.

      Helpful?

  2. Las nanoparticulas estan dispersas en agua? para medir su fluorescencia es necesario dispersarlas en otro disolvente?

    1 answer

    1. This product is a 1% dispersion is water. The particles are composed of polystyrene, iron oxide, and fluoRed fluorescent dye. Diluting in other solvents is not necessary, water is a suitable diluent.

      Helpful?

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