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| Brand | ATAGO |
|---|---|
| Origin | Japan |
| Model | RePo-1 |
| Measurement Principle | Simultaneous dual-mode optical measurement via sodium D-line (589 nm) polarimetry and critical-angle refractometry |
| Measurement Types | Optical Rotation (°Z), Brix (%), International Sugar Scale (ISS, °Z), Purity (%), Specific Rotation (°·mL·g⁻¹·dm⁻¹), Concentration (%) |
| Temperature Control | Built-in Peltier-assisted thermal stabilization (15–40 °C) |
| Light Source | High-stability LED (589 nm equivalent) |
| Sample Volume | 3 mL |
| Measurement Time | ≤12 s per cycle |
| Display Resolution | Rotation: 0.01°Z |
| Brix | 0.1% |
| ISS | 0.1°Z |
| Temp | 0.1 °C |
| Accuracy | Optical Rotation: ±0.1°Z (at 20 °C) |
| Brix | ±0.2% |
| ISS | ±3°Z (at 20 °C) |
| Temperature | ±1.0 °C |
| Environmental Rating | IP67 |
| Dimensions | 10.1 × 16.0 × 3.8 cm |
| Weight | 325 g (host only) |
| Power Supply | 4 × AAA alkaline batteries |
| Compliance | ASTM D1006 (refractometric sugar analysis), ISO 5725 (accuracy & precision), USP <788> (optical rotation for pharmaceuticals), GLP-ready audit trail via optional PC interface |
| Brand | ATAGO |
|---|---|
| Origin | Japan |
| Model | PO-1 |
| Instrument Type | Automatic Portable Polarimeter |
| Temperature Control | None |
| Display | Digital LCD |
| Light Source | LED (589 nm, sodium D-line equivalent) |
| Optical Path | Compatible with 100 mm and 200 mm sample cells |
| Measuring Range | –25.0 to +25.0° (100 mm cell), –50.0 to +50.0° (200 mm cell) |
| Accuracy | ±0.1° (raw reading at 20 °C), ±0.5° (converted specific rotation using 100 mm cell), ±0.1° (using 200 mm cell) |
| Repeatability | ±0.05° |
| Resolution | 0.01° (–9.99 to +9.99°), 0.1° (outside that range) |
| Temperature Measurement Range | 5.0–40.0 °C (±0.1 °C accuracy) |
| Sample Volume | 3 mL |
| Measurement Time | 7 seconds |
| IP Rating | IP67 |
| Power | 4 × AAA alkaline batteries |
| Dimensions | 160 × 101 × 38 mm |
| Weight | 325 g (host only) |
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