Ruixin SZ-HFF2 Volatile Phenol Analyzer
| Brand | Ruixin |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | SZ-HFF2 Volatile Phenol Analyzer |
| Price Range | USD 4,200 – 7,000 |
| Functionality | Single-Analyte Detection |
| Sample Format | Single-Sample Dedicated System |
| Wavelength Range | 380–630 nm |
| Detection Time | ≤ 3 minutes |
| Photometric Repeatability | ≤ 0.2% |
| Optical Channels | 1 |
| Display | 4.5-inch high-resolution color LCD touchscreen |
| Absorbance Range | 0.000–4.000 (resolution: 0.001) |
| Transmittance Range | 0.00–100.00% (resolution: 0.01%) |
| Photometric Accuracy (Transmittance) | ±2.0% |
| Stability (3-min drift) | ≤ 0.3% |
| Measurement Range for Phenol | 0.10–5.00 mg/L |
| Communication Interfaces | RS232, USB |
| Power Supply | AC 220 V / DC 5 V / Rechargeable Li-ion battery |
Overview
The Ruixin SZ-HFF2 Volatile Phenol Analyzer is a portable, single-analyte spectrophotometric instrument engineered for rapid, on-site or laboratory-based quantification of volatile phenols in aqueous matrices. It operates on the principle of colorimetric analysis following 4-aminoantipyrine (4-AAP) derivatization — a method standardized in ISO 6439:1984 and EPA Method 420.1 — where phenolic compounds react under buffered alkaline conditions to form a pink-colored quinoneimine dye, measurable at peak absorbance within the 380–630 nm spectral window. Designed for compliance with routine water quality monitoring protocols, the analyzer delivers quantitative results in ≤3 minutes per sample, supporting regulatory screening of drinking water, raw source water, and post-distillation wastewater effluents. Its compact aluminum chassis, integrated Li-ion battery, and dual-power capability (AC/DC) enable field-deployable operation without compromise to photometric integrity.
Key Features
- 4.5-inch high-resolution color LCD touchscreen with full Chinese UI — optimized for glove-compatible operation in field environments.
- Embedded thermal printer for immediate hard-copy reporting; supports customizable header fields and timestamped result export.
- Pre-loaded calibration curves for multiple concentration ranges — eliminates manual curve generation and reduces operator dependency.
- Automated result display: direct readout of phenol concentration (mg/L) with real-time absorbance and transmittance values.
- Data management architecture: internal memory stores ≥500 test records with date/time stamping, searchable by sample ID or batch.
- Dual-mode power system: operates continuously for >6 hours on rechargeable lithium-ion battery or via universal AC/DC input (220 V / 5 V).
- Optical performance certified to ISO 9001-manufactured tolerances: photometric repeatability ≤0.2%, stability ≤0.3% over 3 minutes, and transmittance accuracy ±2.0%.
Sample Compatibility & Compliance
The SZ-HFF2 is validated for use with clarified, filtered, or distilled aqueous samples meeting standard pretreatment requirements per ISO 6439. It accommodates samples with turbidity <5 NTU and residual chlorine <0.5 mg/L — parameters routinely verified during method validation prior to analysis. The instrument conforms to fundamental design principles outlined in ISO/IEC 17025 for testing laboratories and supports GLP-aligned documentation workflows through traceable data logging and non-editable result archives. While not FDA 21 CFR Part 11-certified out-of-box, its audit trail functionality (timestamped entries, immutable storage) provides foundational infrastructure for regulated environments requiring basic electronic record integrity.
Software & Data Management
No external PC software is required for core operation; all calibration, measurement, and reporting functions execute natively on-device firmware. Internal storage retains test metadata including operator ID (via Chinese input), sample ID, detection time, and raw photometric values. Data export is supported via USB mass-storage mode (CSV format) or RS232 serial transmission to LIMS or SCADA systems. Firmware supports user-defined report templates and enables configuration lockout for QA/QC-controlled deployments. Firmware updates are delivered via USB flash drive — no internet connectivity required.
Applications
- Routine surveillance of municipal drinking water supplies for phenol contamination following industrial discharge events.
- Field verification of treatment efficacy in activated carbon or ozonation units targeting phenolic micropollutants.
- Emergency response testing during chemical spills involving coal tar, creosote, or pesticide manufacturing runoff.
- Quality control in bottled water production facilities performing daily raw water intake screening.
- Educational use in environmental science labs for teaching standardized colorimetric assay methodology.
FAQ
What sample preparation is required prior to analysis?
Samples must be free of suspended solids (filtered through 0.45 µm membrane) and residual oxidants (quenched with sodium thiosulfate if chlorine present). Acidification to pH <2 and refrigeration at 4 °C are recommended for storage up to 24 h.
Is the instrument compatible with international calibration standards?
Yes — it accepts NIST-traceable phenol reference standards (e.g., AccuStandard P-1000-100) for user-performed calibration verification and multi-point curve validation.
Can the wavelength be manually selected within the 380–630 nm range?
No — the optical module is fixed at the optimal 500 nm peak for the 4-AAP–phenol complex; no user-adjustable monochromator is included.
Does the device support multi-parameter expansion?
No — the SZ-HFF2 is purpose-built for volatile phenol only. Ruixin offers modular platforms (e.g., SZ-MP series) for multi-analyte configurations, but this model is hardware-locked to single-channel operation.
How is data security maintained during USB export?
Exported CSV files contain no encryption or password protection; users deploying in regulated settings should apply organizational-level file access controls and maintain versioned backups per internal data governance policy.
