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| Brand | Jingcheng Huatai |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | HT-Q12 |
| Price | USD 630 (approx. based on ¥4500 @ 7.14 exchange) |
| Detection Principle | Colorimetric Spectrophotometry (412 nm) |
| Optical System | Dual-beam LED-based Photometer |
| Detection Channels | 12 independent cuvette positions |
| Display | 7-inch capacitive touch LCD with Chinese UI |
| Data Interface | USB 2.0 |
| Power Supply | DC 12 V with rechargeable 2 A Li-ion battery pack |
| Wavelength Accuracy | ±1.5 nm |
| Absorbance Range | 0–3.0 Abs |
| Absorbance Repeatability | ≤0.005 Abs |
| Baseline Drift | ≤0.005 Abs / 3 min |
| Transmittance Accuracy | ±1.5% |
| Transmittance Repeatability | ≤0.005% |
| Sample Identification | Built-in database of >100 food matrix names (editable) |
| Calibration | User-accessible recalibration, factory reset, and zero-point auto-adjustment |
| Security | Password-protected operator access control |
| Thermal Management | Passive heat dissipation |
| Compliance | Designed per GB/T 5009.49–2003 (Chinese Standard for Formaldehyde in Foods), aligned with AOAC Official Method 2005.09 principles for spectrophotometric formaldehyde quantification |
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