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| Brand | Shengaohua |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | SH-21B(V11) |
| Instrument Type | Portable |
| Measurement Principle | Infrared Spectrophotometry (Fourier-transform-free dispersive IR) |
| Measurement Range | 0–120 mg/L (for C₂Cl₄ extract, 4 cm cell) |
| Detection Limit | 0.002 mg/L (in water) |
| Upper Quantitation Limit | 640,000 mg/L (in water) |
| Accuracy | RSD < 0.8% (for standard oil reference at 20–80 mg/L) |
| Resolution | 0.1 mg/L |
| Scan Time | ~30 s (full spectral scan, 3400–2400 cm⁻¹) |
| Wavenumber Accuracy | ±1 cm⁻¹ |
| Wavenumber Repeatability | ±1 cm⁻¹ |
| Absorbance Range | 0.0000–3.0000 AU (100–1% T) |
| Baseline Drift | Zero drift (mechanical chopper stabilization) |
| Display | 10.1″ Windows 10 tablet PC (backward-compatible with Win7/Win8) |
| Battery Life | Up to 8 h |
| Weight | 12 kg (main unit) |
| Dimensions | 470 × 360 × 230 mm (L×W×H) |
| Enclosure Rating | IP65 |
| Compatible Solvent | Tetrachloroethylene (C₂Cl₄) |
| Data Storage | Local spectral files, measurement parameters, and results exportable to PC |
| Power Supply | Integrated portable rechargeable power module |
| Brand | Shengaohua |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Category | Domestic |
| Model | SH-21Z |
| Instrument Type | Laboratory |
| Measurement Principle | UV Spectrophotometry |
| Measurement Range | 0.001–1000 mg/L |
| Detection Limit | 0.001 mg/L |
| Accuracy | ≤ ±5% |
| Resolution | 0.001 mg/L |
| Measurement Frequency | 7 measurements/min |
| Wavelength Range | 200–400 nm |
| Photometric Stability | ≤ 0.001 A/10 min |
| Repeatability | ±3% |
| Sample Extraction | Manual with n-Hexane |
| Display | 10.1-inch true-color capacitive touchscreen |
| Data Storage Capacity | 5 million records |
| Dimensions | 220 × 120 × 90 mm |
| Net Weight | 10.3 kg |
| Brand | ShengAohua |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | SH-21A |
| Instrument Type | Laboratory Benchtop Analyzer |
| Measurement Principle | Infrared Spectrophotometry (FTIR-based Dispersive Detection) |
| Measurement Range | 0–120.00 mg/L (as oil in water) |
| Detection Limit | 0.001 mg/L (instrument detection limit, water sample basis) |
| Accuracy | ±1.5% |
| Wavenumber Range | 3400–2400 cm⁻¹ (2941–4167 nm) |
| Wavenumber Accuracy & Repeatability | ±0.5 cm⁻¹ |
| Baseline Drift | <0.005 AU/60 min |
| Linearity (R²) | >0.999 |
| Repeatability (RSD) | ≤0.6% at 30–40 mg/L oil standard (n=11) |
| Absorbance Range | 0.0000–3.0000 AU (T = 100%–1%) |
| Scan Speed | Full-spectrum scan in 30 s |
| Light Source | German-imported infrared tungsten-halogen lamp (lifetime ≥50,000 h) |
| Optical Path | Integrated optical-mechanical-electrical architecture with mechanical chopper for zero-point auto-adjustment |
| Solvent Compatibility | Tetrachloroethylene (C₂Cl₄), S-316, 1,1,2-trichloro-1,2,2-trifluoroethane, and other non-carbon-chlorinated solvents |
| Sample Cell | 4 cm pathlength quartz cuvette |
| Operating Environment | 15–30 °C, 20–80% RH (non-condensing) |
| Power Supply | (220 ± 22) V AC, (50 ± 1) Hz, 50 W |
| Dimensions | 480 × 340 × 160 mm |
| Net Weight | 12 kg |
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