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| Brand | SPEX SamplePrep |
|---|---|
| Origin | Taiwan |
| Model | NanoSNAP |
| Detection Time | 3 s |
| Wavelength Accuracy | ±1 nm |
| LOD (dsDNA) | 2 ng/µL |
| LOD (BSA) | 0.06 mg/mL |
| Sample Volume | 1 µL |
| Sample Types | Nucleic Acids, Proteins |
| Spectral Range | 190–1000 nm |
| Bandwidth (FWHM) | 1.5 nm @ 253.7 nm |
| Stray Light | <0.5% T @ 220 nm & 340 nm (NaNO₂) |
| Absorbance Range | 0.04–400 A |
| Photometric Accuracy | ±3.0% @ 0.75 A, 300 nm |
| Photometric Precision | ±0.0015 A (0.5 mm path) |
| Light Source | Pulsed Xenon Lamp |
| Detector | 2048-element CMOS array |
| Pathlength Options | 0.5 mm / 0.05 mm (dual fixed) |
| Display | 7" capacitive touchscreen, Linux OS |
| Internal Storage | 32 GB |
| Interface | USB port for data export |
| Built-in Applications | dsDNA, ssDNA, RNA quantification |
| Brand | Biochrom |
|---|---|
| Origin | USA |
| Model | BioDrop uLITE+ |
| Sample Volume | 0.5 µL |
| Detection Limit (dsDNA) | 1 ng/µL |
| Wavelength Accuracy | ±2 nm |
| Measurement Time | <3 s |
| Wavelength Range | 190–1100 nm |
| Absorbance Range | –0.3 A to 2.5 A |
| Photometric Accuracy | ±0.005 A or ±1% of reading (whichever is greater, at 546 nm) |
| Light Source | Pulsed Xenon Lamp |
| Detector | CMOS Array |
| Spectral Bandwidth | 5 nm |
| Stray Light | <0.5% T (at 220 nm with NaCl |
| Dimensions | 410 × 280 × 190 mm |
| Weight | 3.55 kg |
| Brand | Biochrom |
|---|---|
| Origin | USA |
| Model | BioDrop DUO+ |
| Sample Volume Requirement | 0.5 µL |
| Detection Time | <3 s |
| Wavelength Accuracy | ±2 nm |
| Wavelength Range | 190–1100 nm |
| Absorbance Range | –0.3 A to 2.5 A |
| dsDNA Detection Limit | 1–12,000 ng/µL |
| Protein (BSA) Detection | Supported |
| Light Source | Pulsed Xenon Lamp |
| Detector | 1024-pixel CCD Array |
| Spectral Bandwidth | 5 nm |
| Stray Light | <0.5% T (220 nm, NaCl |
| Absorbance Accuracy | ±0.005 A or ±1% of reading (whichever is greater, at 546 nm) |
| Absorbance Reproducibility | ±0.003 A (0–0.5 A), ±0.007 A (0.5–1.0 A) |
| Optical Path Accuracy (Microvolume) | ±5 µm |
| Dimensions | 410 × 280 × 190 mm |
| Weight | 3.55 kg |
| Power Input | 120–250 V, 50/60 Hz, max. 40 VA |
| Interface | 7-inch capacitive color touchscreen (English, French, German, Spanish, Chinese), USB port for flash drive and PC connectivity |
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