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| 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 | Shanda |
|---|---|
| Model | SD-FP7450 |
| Origin | Shandong, China |
| Detection Elements | K, Na, Li, Ca, Ba |
| Number of Channels | 5 |
| Measurement Range | 0.000–999.9 / 0–65535 (arbitrary units) |
| Detection Limits (mmol/L) | K ≤ 0.004, Na ≤ 0.008, Li ≤ 0.015, Ca ≤ 0.050, Ba ≤ 0.044 |
| Linearity Error (mmol/L) | K ≤ 0.005, Na ≤ 0.03, Li ≤ 0.021, Ca ≤ 0.075, Ba ≤ 0.066 |
| Response Time | ≤ 8 s |
| Nebulization Rate | < 6 mL/min |
| Stability | ≤ 3% RSD over 15 s |
| Repeatability | ≤ 3% RSD |
| Display | 7-inch capacitive color touchscreen |
| Output | Concentration values and relative emission intensity |
| Data Output | Built-in Bluetooth thermal printer, USB interface, optional PC software |
| Graphical Display | Real-time calibration curve and signal trend plotting |
| Compliance | Designed for routine quantitative analysis in accordance with ISO 11097:2010 (Water quality — Determination of sodium and potassium — Flame photometric method) and ASTM D1293 (Standard Test Methods for Electrical Conductivity and pH of Water) |
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