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| [Brand | Persee |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Architecture | Dual-Beam |
| Detector | Photomultiplier Tube (PMT) |
| Wavelength Range | 185 nm – 900 nm |
| Wavelength Accuracy | ±0.1 nm (at D₂ line, 656.1 nm) |
| Wavelength Repeatability | ≤0.05 nm (at D₂ line, 656.1 nm) |
| Spectral Bandwidth | Continuously Adjustable from 0.1 nm to 5.0 nm |
| Stray Light | ≤0.0001% T (NaI, 220 nm) |
| Photometric Range | –6 Abs to +6 Abs |
| Baseline Flatness | ±0.0008 Abs |
| Absorbance Accuracy | ±0.002 Abs (0–0.5 Abs), ±0.004 Abs (0.5–1.0 Abs), ±0.3% T (>1.0 Abs) |
| Absorbance Repeatability | ≤0.001 Abs (0–0.5 Abs), ≤0.002 Abs (0.5–1.0 Abs), ≤0.1% T (>1.0 Abs) |
| Drift | ≤0.1% T/h |
| Optical System | Hybrid Czerny-Turner Dual-Monochromator with High-Reflectivity Coated Optics |
| Light Sources | Integrated Deuterium Lamp, Tungsten-Halogen Lamp, and Mercury Calibration Lamp (Auto-Switching)] |
| Brand | Purkinje |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Model | TU-1901 / TU-1900 |
| Optical System | Dual-Beam |
| Detector | Photomultiplier Tube (PMT) |
| Wavelength Range | 190 nm – 900 nm |
| Wavelength Accuracy | ±0.3 nm (auto-calibrated at startup) |
| Wavelength Repeatability | ≤0.15 nm |
| Spectral Bandwidth | 0.1 nm, 0.2 nm, 0.5 nm, 1.0 nm, 2.0 nm, 5.0 nm |
| Stray Light | ≤0.01%T at 220 nm (NaI), ≤0.05%T at 360 nm (NaNO₂) |
| Photometric Accuracy | ±0.002 Abs (0–0.5 Abs), ±0.004 Abs (0.5–1.0 Abs), ±0.3%T (0–100%T) |
| Photometric Range | –4.0 to +4.0 Abs |
| Baseline Flatness | ±0.001 Abs |
| Baseline Drift | 0.0004 Abs/h (at 500 nm, 0 Abs, after 2 h warm-up) |
| Photometric Noise | ±0.0004 Abs |
| Brand | Persee |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Instrument Architecture | Single-Beam |
| Detector | Photomultiplier Tube (PMT) |
| Wavelength Range | 190–1100 nm |
| Wavelength Scanning Mode | Motorized Automatic Wavelength Drive |
| Spectral Bandwidth | 0.5 / 1.0 / 2.0 / 5.0 nm (TU-1810S models, variable slit) |
| Wavelength Accuracy | ±0.3 nm (with automatic on-boot wavelength calibration) |
| Wavelength Repeatability | ≤0.2 nm |
| Stray Light | ≤0.02% T at 220 nm (using NaI solution), ≤0.05% T at 360 nm (using NaNO₂ solution) |
| Brand | Persee |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | Solid Sample Testing Solution |
| Price Range | USD 14,000 – 21,000 (FOB) |
| Optical Architecture | Dual-Wavelength Configuration |
| Detector | Photomultiplier Tube (PMT) |
| Wavelength Scanning Mode | Automatic |
| Stray Light | < 0.0004% (4 × 10⁻⁴ %) |
| Compatible Accessories | 150 mm Integrating Sphere (Standard), 60 mm Integrating Sphere (Standard), Eyewear-Specific Measurement Fixture |
| Sample Types | Opaque/Translucent Solids, Powders, Turbid Liquids |
| Measurement Modes | Diffuse Reflectance, Specular Reflectance, Total Transmittance, Diffuse Transmittance |
| Brand | Purkinje |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Architecture | Dual-Beam |
| Detector Type | Photomultiplier Tube (PMT) |
| Wavelength Range | 185–900 nm |
| Wavelength Accuracy | ±0.1 nm (at D₂ line, 656.1 nm) |
| Wavelength Repeatability | ≤0.05 nm (at D₂ line, 656.1 nm) |
| Spectral Bandwidth | Continuously Adjustable from 0.1 to 5.0 nm |
| Stray Light | ≤0.00004%T (NaI, 220 nm) |
| Stray Light | ≤0.00002%T (NaNO₂, 360 nm) |
| Photometric Range | –8 to +8 Abs |
| Baseline Flatness | ±0.0005 Abs |
| Photometric Accuracy | ±0.002 Abs (0–0.5 Abs), ±0.004 Abs (0.5–1.0 Abs), ±0.3%T (>1.0 Abs) |
| Photometric Repeatability | ≤0.001 Abs (0–0.5 Abs), ≤0.002 Abs (0.5–1.0 Abs), ≤0.1%T (>1.0 Abs) |
| Drift | ≤0.1%T/h |
| Brand | Persee |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | T700/T600 |
| Optical Design | Dual-Beam |
| Detector Type | Photocell |
| Wavelength Range | 190–1100 nm |
| Wavelength Accuracy | ±0.3 nm |
| Wavelength Repeatability | ≤0.1 nm |
| Spectral Bandwidth | 5 nm / 2 nm / 1 nm / 0.5 nm / 0.2 nm (selectable) |
| Stray Light | ≤0.01% T at 220 nm |
| Absorbance Range | –4 to +4 Abs |
| Scan Speed | Up to 30,000 nm/min |
| Interface | Ethernet port |
| Display | 9.7-inch capacitive touchscreen |
| Compliance | Meets JJG 178–2015 (Chinese National Verification Regulation for UV-Vis Spectrophotometers, Class I accuracy) |
| Brand | Persee |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Product Type | Domestic |
| Model | T6 Series |
| Price Range | USD 1,400–2,800 |
| Optical Design | Pseudo-Double-Beam |
| Detector | Photomultiplier Tube (PMT) |
| Wavelength Range | 190–1100 nm |
| Wavelength Scanning | Motorized Auto-Positioning |
| Spectral Bandwidth | 2.0 nm |
| Wavelength Accuracy | ±1 nm |
| Wavelength Repeatability | ≤0.2 nm |
| Stray Light | 0.05% T at 220 nm |
| Brand | Persee |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | UV-Vis Automated Liquid Sampling Solution |
| Price Range | USD 14,000 – 21,000 |
| Optical Design | Double-beam |
| Detector | Photomultiplier Tube (PMT) |
| Wavelength Range | 190–1100 nm |
| Spectral Bandwidth | 1.8 nm (typical) |
| Wavelength Accuracy | ±0.3 nm |
| Stray Light | <0.05% T at 220 nm and 360 nm |
| Automation Level | Fully Automated Wavelength Scanning & Sample Handling |
| Sample Capacity | Three Independent Sample Carriers Supporting Configurable Racks (50 mL × 10 wells, 25 mL × 18 wells, or 20 mL × 18 wells) |
| Positioning System | Programmable 3-Axis Robotic Arm with Sub-millimeter Repeatability |
| Cleaning Mechanism | Peristaltic Pump–Driven Dynamic Immersion Rinse with Solvent Exchange Protocol |
| Brand | Purkinje |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | OEM Manufacturer |
| Instrument Architecture | Dual-Beam |
| Detector Type | Photomultiplier Tube (PMT) |
| Wavelength Range | 190–900 nm |
| Wavelength Accuracy | ±0.3 nm (auto-calibrated at startup) |
| Wavelength Repeatability | ≤0.15 nm |
| Spectral Bandwidth | Continuously Variable from 0.1 to 5.0 nm (0.1 nm increments) |
| Stray Light | ≤0.01% T at 220 nm (NaI), ≤0.05% T at 360 nm (NaNO₂) |
| Baseline Flatness | ±0.001 Abs |
| Drift | ≤0.1%/h |
| Dimensions | 610 × 570 × 300 mm |
| Weight | 39 kg |
| Brand | Persee |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | T400 / T500 |
| Price Range | USD 1,400 – 4,200 |
| Optical Design | Single-Beam |
| Detector Type | Silicon Photocell |
| Wavelength Range | 325–1100 nm (T400) / 190–1100 nm (T500) |
| Wavelength Accuracy | ±0.2 nm (T400) / ±0.1 nm (T500) |
| Wavelength Repeatability | ≤0.4 nm (T400) / ≤0.2 nm (T500) |
| Spectral Bandwidth | 2 nm |
| Stray Light | ≤0.05%T at 360 nm (T400) / ≤0.05%T at 220 nm (T500) |
| Wavelength Scanning Speed | 2500 nm/min |
| Wavelength Setting Speed | 7000 nm/min |
| Dimensions (W×D×H) | 470 × 400 × 210 mm |
| Weight | 11 kg |
| Display | 7-inch Color Touchscreen |
| Data Export | USB Flash Drive Support |
| Sample Compartment | Open-Design with Integrated Cuvette Storage Rack |
| Software Interface | PC-Connectable Workstation with GLP Compliance Features |
| Firmware Upgradability | Over-the-Air (OTA) for Application Module Expansion (e.g., Protein Quantitation, Pesticide Residue Analysis, Water Quality Testing) |
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