Product Overview - Count Standards

Count Standards

Our count standard particles are used for calibration of instruments such as particle counters and flow cytometers. We produce both white beads and fluorescent beads for use as count standards. The particle concentration is in the range of 1x106 microspheres/mL. Precise concentrations are provided in a Certificate of Analysis with our products. Fluorescent count standards are designed for a wide range of excitation and emission wavelengths.

Magsphere now offers Count Standard Kits. We have one kit with plain microspheres, and one fluorescent kit for fluorescence applications. Kits contains 5 mL of each count standard. Sizes are listed below.

Count Standard Microspheres Kit: 2.5 um, 5 um, 7 um, 10 um, 15 um

Fluorescent Count Standard Kit: 2.5 um, 5 um, 7 um, 10 um

Product specifications:

Catalog No.

Diameter (m)

Please Select Quantity.

CS5UM

5

Quantity

CS7UM

7

Quantity

CS10UM

10

Quantity

CSKIT

5 Sizes

Quantity

 

 

*Prices are subject to change without notice.

Fluorescent Count Standards

Fluorescent Count Standards are extremely uniform polystyrene beads; doped with appropriate amount of fluorescent dye that can be excited for medium fluorescent intensity by a wider range of lasers.

Magsphere Inc.'s Fluorescent Count Standard Beads, FCS Beads, are suspended at 10mL and 5mL with ~1x106 microspheres/mL. Sizes are available at  2.5m, 5m, 7m, and 10m. Fluorescent Count standard kits are also available at 5mL at each size.

Fluorescent Count standard can be used in size analyzer, flow cytometers, and microscope observation.

Fluorescent  property: this product line is designed for wide range excitation and emission. Product will be shipped within 10% of the diameter you selected.

Catalog No.

Diameter (um)

Please Select Quantity.

FCS5UM

5

Quantity

FCS7UM

7

Quantity

FCS10UM

10

Quantity

FCSKIT

5 Sizes

Quantity

 

 

*Prices are subject to change without notice.

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