Ultra Micro Spectrophotometer
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| Brand | DELEITE |
|---|---|
| Origin | Shanghai, China |
| Model | SmartSens-400 |
| Spectral Bandwidth | 0.1, 0.2, 0.4, 0.7, 1.4, 2 nm (6-step automatic switching) |
| Wavelength Accuracy | ±0.3 nm |
| Wavelength Range | 185–900 nm |
| Baseline Drift (Static, Cu) | ±0.004 A/30 min |
| Baseline Drift (Dynamic, Cu) | ±0.006 A/15 min |
| Detection Limit (Cd) | ≤1.5 pg |
| Detection Limit (Cu) | ≤20 pg |
| Characteristic Mass (Cd) | ≤1.0 pg |
| Characteristic Mass (Cu) | ≤22 pg |
| Graphite Furnace Temperature Range | Ambient to 3000 °C |
| Maximum Ramp Rate | 2000 °C/s |
| Background Correction | D₂-lamp, ≥30× correction at 1 A |
| Brand | Hengmei |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Model | HM-MD |
| Spectral Bandwidth | 4 nm (2 nm optional) |
| Wavelength Accuracy | ±1 nm |
| Wavelength Range | 190–1100 nm |
| Photometric Range | 0–200% T, −0.3–3 A |
| Stray Light | ≤0.1% T |
| Photometric Accuracy | ±0.5% T, ±0.004 Abs (0–0.5 A) |
| Photometric Repeatability | ±0.5% T, ±0.004 Abs (0–0.5 A) |
| Baseline Stability | ±0.002 Abs at 500 nm (3 min) |
| Detector | Imported Silicon Photodiode |
| Monochromator | Czerny-Turner with Holographic Blazed Grating (1200 lines/mm) |
| Display | 7-inch TFT-LCD Touchscreen (1024 × 768) |
| Connectivity | USB, Wi-Fi (standard), Bluetooth (standard), optional PC software (Yokelab), cloud integration via YOKE@Clouddata |
| Data Storage | 2000 spectra, 96 calibration curves |
| Scan Speed | up to 3000 nm/min |
| Lamp Switching | Automatic (default 340 nm, user-configurable) |
| Brand | Kylin-Bell |
|---|---|
| Origin | Jiangsu, China |
| Model | BE-9000 |
| Spectral Range | 190–850 nm |
| Spectral Bandwidth | 190–850 nm (full-range xenon flash lamp) |
| Wavelength Accuracy | ±1 nm |
| Sample Volume | 0.5–2 µL |
| Optical Path Lengths | 0.05 mm, 0.2 mm, and 1.0 mm |
| dsDNA Quantitation Range | 2–15,000 ng/µL |
| Absorbance Accuracy | ±1% at 7.332 A (260 nm) |
| Absorbance Precision | 0.003 A (at 0.2 mm path) |
| Absorbance Linearity Range (10-mm equivalent) | 0.04–300 A |
| Measurement Time | <6 s |
| OD600 Range | 0.000–6.000 A |
| Detector | Hamamatsu UV-enhanced CMOS linear array sensor |
| Light Source | Pulsed xenon flash lamp |
| Display | 7-inch capacitive touchscreen (1024 × 600) |
| Operating System | Android-based embedded OS |
| Dimensions | 200 × 260 × 165 mm |
| Weight | 5 kg |
| Power Supply | DC 24 V adapter |
| Power Consumption | 25 W (operational), 5 W (standby) |
| Absorbance Stability & Repeatability | ≤0.5% (0–3 A), ≤2% (3–4 A) |
| Brand | LY |
|---|---|
| Origin | Beijing, China |
| Model | WD-2112B |
| Wavelength Accuracy | ±1 nm |
| Wavelength Range | 190–850 nm |
| Sample Volume Requirement | 0.5–2 µL |
| Optical Pathlengths | 0.02, 0.05, 0.2, and 1.0 mm |
| dsDNA Detection Range | 0–27,500 ng/µL |
| BSA Detection Range | 0.06–820 mg/mL |
| Fluorescence Sensitivity (dsDNA) | 0.5 pg/µL |
| Fluorescence Linearity | ≤1.5% |
| OD₆₀₀ Accuracy | ±0.005 A (0–2 A), ±1% (2–3 A), ±2% (3–4 A) |
| Absorbance Precision | ±0.005 A or ±1% |
| Spectral Resolution | <1 nm |
| Measurement Time | <5 s |
| Power Consumption (Operating) | 25 W |
| Dimensions | 200 × 260 × 165 mm |
| Weight | 5 kg |
| Brand | Molecular Devices |
|---|---|
| Origin | USA |
| Manufacturer | Yes |
| Import Status | Imported |
| Model | QuickDrop |
| Wavelength Accuracy | ±2 nm |
| Wavelength Range | 190–1100 nm |
| Cuvette Compatibility | Yes |
| Brand | Shanda |
|---|---|
| Origin | Shandong, China |
| Model | SD-ND600 |
| Wavelength Range | 185–910 nm |
| Wavelength Accuracy | ±1 nm |
| Wavelength Resolution | ≤1.8 nm (FWHM at Hg 546 nm) |
| Absorbance Accuracy | ±1% (7.332 Abs at 260 nm) |
| Absorbance Precision | 0.002 Abs |
| Sample Volume | 0.5–2.0 µL |
| Pathlength Options | 0.02, 0.05, 0.1, 0.5, and 1.0 mm (automatically selected) |
| Measurement Time | ≤5 s per sample |
| Cuvette Mode OD600 Range | 0–4 A |
| dsDNA Quantitation Range | 2–38,880 ng/µL |
| BSA Protein Range | 0.06–820 mg/mL |
| Light Source | Pulsed Xenon Lamp (10-year lifetime) |
| Detector | 3648-pixel Linear CCD Array |
| Display | 7-inch Capacitive Touchscreen (Android OS) |
| Data Export | USB flash drive, SD-RAM card |
| Optional Fluorescence Module | Ex 460 nm / Em 525 nm |
| Dimensions (W×D×H) | 270 × 210 × 196 mm |
| Weight | 3.5 kg |
| Brand | Thermo Fisher |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Product Origin | Domestic |
| Model | NanoDrop Lite Plus Ultra Micro Spectrophotometer |
| Pricing | Available Upon Request |
| Brand | Thermo Fisher |
|---|---|
| Origin | USA |
| Manufacturer | Thermo Fisher Scientific |
| Instrument Type | Imported |
| Model | Thermo Scientific™ NanoDrop™ Ultra |
| Pricing | Upon Request |
| Brand | Youyunpu |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Model | YP-CWF2 |
| Wavelength Range | 230 nm, 260 nm, 280 nm |
| Sample Volume | 0.5–2 µL |
| Optical Path Lengths | 0.04 mm, 0.2 mm, 1.0 mm |
| Light Source | Pulsed Xenon Lamp |
| Detector | UV-Enhanced CMOS Linear Array Sensor |
| DNA Quantitation Range (dsDNA) | 25–11,000 ng/µL |
| Absorbance Accuracy | ±1% (7.332 Abs @ 260 nm) |
| Absorbance Precision | 0.003 Abs (0.2 mm path) |
| Absorbance Range | 0.5–220 A |
| Measurement Time | <6 s |
| OD600 Range | 0–6 Abs |
| OD600 Repeatability & Stability | ≤0.5% (0–3 Abs), ≤2% (3–4 Abs) |
| Fluorescence Detection LOD | 0.5 pg/µL (dsDNA, with compatible dyes) |
| Fluorescence Linearity | R² > 0.995 |
| Fluorescence CV | <1.5% |
| Internal Storage | Up to 100,000 records |
| Battery | 21.6 V / 7000 mAh (8 h runtime) |
| Power Consumption | 25 W (10 W standby) |
| Dimensions | 325 × 227 × 211 mm |
| Weight | 5.15 kg |