Project Description
EPRUI Biotech supplies two different matrix of particle size standards: Polystyrene and Silica. The particle size ranges from 20nm to 100um.
We supplies a full range of size standard microspheres based on patented particle technology. All of our particles standards are determined by Coulter Counter, DPS Disk Centrifuge, Dynamic Light Scattering, TEM, SEM, and Optical Microscope against Standard Reference Materials (SRMs) from the National Institute of Standards and Technology, U.S. Department of Commerce (NIST). The particle sizes of these microspheres are therefore traceable to globally recognized primary standards of NIST SRMs.
All particle size standards supplied from EPRUI are either cross-linked polymer or silica microspheres. The polymer particle size standards >1um in diameter are based on highly crosslinked polystyrene for improving physical and chemical stability.
Features
- Broad size range available from nanometer to micron
- Diverse matrix selection from polymers to silica
- Perfect spherical morphology
- Narrow particle size distribution,CV<3%
- Stable physical and chemical properties
Specification
| Item | Polystyrene | Silica |
|---|---|---|
| Size range | 20nm-100um | 300nm-22um |
| C.V. | <3% | <3% |
| Density | Noncrosslinked: 1.05g/cm3 | 2.20g/cm3 |
| Crosslinked: 1.08g/cm3 | ||
| Refractive Index | 1.59 | 1.45 |
| Storage | Room temperature or store in the refrigerator above 0℃。 | |
| Keep the cap closed and prevent from pollution | ||
| Shelf Life | 12 months | 12 months |
Product List
Nano Standard Particle Size
| Item | Particle Size | Matrix | CV. | W/V |
|---|---|---|---|---|
| EPRUI-N-PS20 | 20nm | Polystyrene | 8% | 1% |
| EPRUI-N-PS30 | 30nm | Polystyrene | 8% | 1% |
| EPRUI-N-PS40 | 40nm | Polystyrene | 8% | 1% |
| EPRUI-N-PS50 | 50nm | Polystyrene | 8% | 1% |
| EPRUI-N-PS60 | 60nm | Polystyrene | 5% | 1% |
| EPRUI-N-PS70 | 70nm | Polystyrene | 3% | 1% |
| EPRUI-N-PS80 | 80nm | Polystyrene | 3% | 1% |
| EPRUI-N-PS90 | 90nm | Polystyrene | 3% | 1% |
| EPRUI-N-PS100 | 100nm | Polystyrene | 3% | 1% |
| EPRUI-N-PS150 | 150nm | Polystyrene | 3% | 1% |
| EPRUI-N-PS200 | 200nm | Polystyrene | 3% | 1% |
| EPRUI-N-PS300 | 300nm | Polystyrene | 3% | 1% |
| EPRUI-N-PS400 | 400nm | Polystyrene | 3% | 1% |
| EPRUI-N-PS500 | 500nm | Polystyrene | 3% | 1% |
| EPRUI-N-PS600 | 600nm | Polystyrene | 3% | 1% |
| EPRUI-N-PS700 | 700nm | Polystyrene | 3% | 1% |
| EPRUI-N-PS800 | 800nm | Polystyrene | 3% | 1% |
| EPRUI-N-PS900 | 900nm | Polystyrene | 3% | 1% |
| EPRUI-N-Si300 | 300nm | SiO2 | 3% | 1% |
| EPRUI-N-Si500 | 500nm | SiO2 | 3% | 1% |
| EPRUI-N-Si600 | 600nm | SiO2 | 3% | 1% |
| EPRUI-N-Si700 | 700nm | SiO2 | 3% | 1% |
| EPRUI-N-Si800 | 800nm | SiO2 | 3% | 1% |
| EPRUI-N-Si900 | 900nm | SiO2 | 3% | 1% |
Micro Particles Standards
| Item | Particle Size | Matrix | CV. | W/V |
|---|---|---|---|---|
| EPRUI-M-PS001 | 1um | Polystyrene | 3% | 1% |
| EPRUI-M-PS0015 | 1.5um | PS/DVB | 3% | 1% |
| EPRUI-M-PS002 | 2um | PS/DVB | 3% | 1% |
| EPRUI-M-PS003 | 3um | PS/DVB | 3% | 1% |
| EPRUI-M-PS004 | 4um | PS/DVB | 3% | 1% |
| EPRUI-M-PS005 | 5um | PS/DVB | 3% | 1% |
| EPRUI-M-PS006 | 6um | PS/DVB | 3% | 1% |
| EPRUI-M-PS007 | 7um | PS/DVB | 3% | 1% |
| EPRUI-M-PS008 | 8um | PS/DVB | 3% | 1% |
| EPRUI-M-PS009 | 9um | PS/DVB | 3% | 1% |
| EPRUI-M-PS010 | 10um | PS/DVB | 3% | 1% |
| EPRUI-M-PS015 | 15um | PS/DVB | 3% | 1% |
| EPRUI-M-PS020 | 20um | PS/DVB | 3% | 1% |
| EPRUI-M-PS030 | 30um | PS/DVB | 3% | 1% |
| EPRUI-M-PS040 | 40um | PS/DVB | 3% | 1% |
| EPRUI-M-PS050 | 50um | PS/DVB | 3% | 1% |
| EPRUI-M-PS100 | 100um | PS/DVB | 3% | 1% |
| EPRUI-M-Si001 | 1um | SiO2 | 3% | 1% |
| EPRUI-M-Si0015 | 1.5um | SiO2 | 3% | 1% |
| EPRUI-M-Si002 | 2um | SiO2 | 3% | 1% |
| EPRUI-M-Si003 | 3um | SiO2 | 3% | 1% |
| EPRUI-M-Si004 | 4um | SiO2 | 3% | 1% |
| EPRUI-M-Si005 | 5um | SiO2 | 3% | 1% |
| EPRUI-M-Si006 | 6um | SiO2 | 3% | 1% |
| EPRUI-M-Si007 | 7um | SiO2 | 3% | 1% |
| EPRUI-M-Si008 | 8um | SiO2 | 3% | 1% |
| EPRUI-M-Si009 | 9um | SiO2 | 3% | 1% |
| EPRUI-M-Si010 | 10um | SiO2 | 3% | 1% |
| EPRUI-M-Si015 | 15um | SiO2 | 3% | 1% |
| EPRUI-M-Si020 | 20um | SiO2 | 3% | 1% |