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| Brand | Particle Metrix |
|---|---|
| Origin | Germany |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | ZetaView® Evolution |
| Zeta Potential Range | ±500 mV |
| pH Range | 1–13 |
| Operating Temperature Range | 5°C to 55°C |
| pH Resolution | 1–13 |
| Temperature Resolution | 0.1°C |
| Size Accuracy | ±5 nm |
| Size Repeatability | ±2 nm |
| Brand | Colloidal Dynamics |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | ZetaProbe |
| Price Range | USD 68,000–136,000 |
| Zeta Potential Range | ±300 mV |
| pH Range | 1–13 |
| Operating Temperature Range | 5–50 °C |
| pH Resolution | 0.1 |
| Temperature Resolution | 0.1 °C |
| Accuracy | ±1% of reading (typical) |
| Repeatability | ±0.01 mV (standard deviation over 10 measurements) |
| Brand | Microtrac |
|---|---|
| Origin | Germany |
| Model | STABINO ZETA |
| Zeta Potential Range | ±3000 mV |
| pH Range | 1–14 |
| Operating Temperature Range | 0–90 °C |
| pH Resolution | ±0.1 |
| Temperature Resolution | ±0.1 |
| Measurement Principle | 180° Dynamic Light Scattering and Heterodyne Doppler Electrophoresis |
| Repeatability | ≤1% error |
| Brand | Microtrac |
|---|---|
| Origin | Germany |
| Model | NANOTRAC WAVE II |
| Zeta Potential Range | ±200 mV |
| Temperature Operating Range | 0–90 °C (programmable ramp) |
| pH Resolution | 0.1 |
| Temperature Accuracy | ±0.1 °C |
| Particle Size Range | 0.3 nm – 10 µm |
| Concentration Range | 100 ppb – 40 % w/v |
| Detection Angle | 180° (backscatter) |
| Repeatability | ≤1% |
| Theoretical Basis | Full-range Mie theory with non-spherical particle correction factor |
| Compliance | ISO 13321, ISO 13099-2:2012, ISO 22412:2008 |
| Software Compliance | FDA 21 CFR Part 11 (electronic signatures, audit trail, user access control) |
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